Datasheet UG-030 Datasheet (ANALOG DEVICES)

Evaluation Board User Guide

UG-030

One Technology Way • P. O . Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel : 781.329.4700 • Fax : 781.461.3113 • www.analog.com

Using the ADAU1381 Sound Engine

INTRODUCTION

This user guide explains the signal flow and parameter settings for the ADAU1381 sound engine. The ADAU1381 is ideal for low power portable applications, such as digital camera audio. During the recording or playing back of audio, the sound engine provides many signal processing features to improve audio quality.

DIGITAL CAMERA SYSTEM OVERVIEW

Although the ADAU1381 is flexible enough to be used in several types of portable audio applications, its design specifically targets digital camera systems. The sound processing engine was, therefore, designed especially with such a system in mind. In general, digital cameras use audio processing when recording or playing back video. When recording, one or more microphones mounted in the camera or connected externally capture the audio data, which is then stored in the memory along with the video data. During playback or review mode, the audio data is retrieved from memory and played back through a speaker mounted in the camera or through a jack for headphones or other external connections.

In record mode, the source is an audio transducer (microphone) and the target is memory. In playback mode, the source is memory and the target is an audio transducer (speaker). In both modes, the sound engine is positioned between the source and target, processing the signal to improve audio quality.

Because the required audio processing differs depending on the operating mode of the camera, several audio processing modes have been implemented in the sound engine of the ADAU1381.

SOUND ENGINE SIGNAL FLOW BLOCK DIAGRAM

AUDIO MODE

AUDIO PROCESSING MODES

Record Mode

Record mode takes audio input from a microphone. Wind noise reduction is applied to remove unwanted noise from the signal and improve audio clarity. The enhanced stereo capture algorithm provides improved stereo separation when microphones are spaced close together. The six-band equalizer can be programmed to augment bands of interest and filter out unwanted frequencies. The dual-band dynamics processor acts as an automatic level control, compensating for fluctuating input signal levels. The processed signal is output to a digital storage medium.

Two record modes exist: Record A (REC A) and Record B (REC B). The only differences between the two modes are the six-band equalizer and the dual-band dynamics processor settings. The two record modes allow for different audio recording profiles, such as voice or music. The recording profile can be changed by a single write to the RAM parameter.

Playback Mode

Playback mode takes audio input from the digital storage. The sixband equalizer is used for frequency compensation with the output speaker or headphones. The dual-band dynamics processor acts as a compressor, allowing for suitable playback levels even in noisy environments. The playback output includes a digital volume control for output level adjustment.

RECORD

INPUT

PLAYBACK

INPUT

WIND NOISE REDUCTION

ENHANCED

STEREO

CAPTURE

SIX-BAND

EQUALIZER

Figure 1.

Please see the last page for an important warning and disclaimers. Rev. 0 | Page 1 of 40

DUAL-BAND

DYNAMIC

PROCESSOR

RECORD OUTPUT

PLAYBACK

OUTPUT

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REVISION HISTORY

11/09—Revision 0: Initial Version

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SIGMASTUDIO INTERFACE TO THE SOUND ENGINE

SIGMASTUDIO INTERFACE

SigmaStudio™ is a software tool that allows the user to configure the registers and parameters of the ADAU1381 via a graphical user interface. SigmaStudio can communicate directly with target hardware via the EVAL-ADUSB2EBZ board, also known as the USBi, which uses the I The ADAU1381 evaluation board is configured for use with the USBi. Prototype hardware can also be configured for a USBi connection using a 10-pin communications header.

More information on the USBi can be found in the AN-1006 application note at www.analog.com.

2

C® and SPI communications protocols.

ADAU1381 POWER-UP SEQUENCE

When power is supplied to the ADAU1381, a boot sequence is initiated to clear the memory to a default state. When the boot sequence is complete, all of the sound engine parameters are set to 0. The parameters in the ADAU1381 memory do not match the values shown in SigmaStudio until they are overwritten.

CONNECTING THE ADAU1381 EVALUATION BOARD TO THE COMPUTER

To connect the ADAU1381 to the computer, complete the following steps:

1. Install SigmaStudio; refer to the evaluation board

documentation for step-by-step instructions.

2. Set up the USBi and ADAU1381 evaluation board as

described in the evaluation board documentation.

3. Connect the USBi to the PC with a USB cable and install

the drivers as described in the AN-1006 application note.

4. Connect the communications ribbon cable to the target

ADAU1381 board to initiate the built-in hardware selfboot function of the ADAU1381.

5. Run SigmaStudio.

6. Open the ADAU1381.dspproj file, which is located in the

SigmaStudio program directory.

7. Write registers and parameters from SigmaStudio to the

hardware to enable the audio signal paths. To download all parameters for the ADAU1381.dspproj file at once, click Link-Compile-Download in the main toolbar.

EDITING THE SIGNAL FLOW

The signal flow of the ADAU1381 is fixed function. The corresponding SigmaStudio project file is locked. Therefore, no cells can be added to or deleted from the project. Only the parameters and register settings can be modified.

CONTROLLING PARAMETERS IN REAL TIME

SigmaStudio can be used for real-time tuning of the evaluation board or a production system via the USBi control interface. The method for changing the parameters of each cell is described in the help documentation for that cell.

New parameter values should always be generated within the SigmaStudio tool. The default minimum and maximum limits for each control should be obeyed.

OUTPUT FILE GENERATION

SigmaStudio includes built-in code and header file generation tools that can greatly simplify integration in the host controller of a target system. Parameter values and register settings can easily be exported via the Export System Files command in SigmaStudio to C-compatible output files.

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SOUND ENGINE SIGNAL PROCESSING FLOW

The sound engine processing flow of the ADAU1381 is partitioned into multiple hierarchy pages in the SigmaStudio tool. In this section, each page and its corresponding controls and parameters are described in detail.

DESCRIPTION

The main page presents an overview of the signal flow, with the processing blocks of the sound engine presented as hierarchy boards. Using the main page controls, the audio modes and output volumes can be modified.

INPUTS

There are four audio inputs to the sound engine: Record Input 0, Record Input 1, Playback Input 0, and Playback Input 1. The

source of the signals on the record inputs is the ADCs or digital microphones. Record Input 0 comes from the left ADC or Digital

Microphone Input 1 (the LMIC/LMICN/MICD1 pin), and Record Input 1 comes from the right ADC or Digital Microphone Input 2 (the RMIC/RMICN/MICD2 pin). The inputs to the playback path are from the digital serial data interface. Digital Serial Input 0 (the left channel of the DAC_SDATA/GPIO0 pin)

is connected to Playback Input 0, and Digital Serial Input right channel of the DAC_SDATA/GPIO0 pin) is connected to Playback Input 1.

These two input pairs are routed to the subsequent processing blocks based on the mode selections. In REC A and REC B modes, the record input pair is routed through the processing algorithms; in playback mode, the playback input pair is routed through the processing algorithms.

1 (the

OUTPUTS AND MUTE

There are four audio outputs from the sound engine: Record Output 0, Record Output 1, Playback Output 0, and Playback Output 1. The record output signals (also labeled as Digital Output 0 and Digital Output 1) are sent to the digital serial

data interface, and the playback output signals (also labeled as Analog Output 0 and Analog Output 1) go to the DACs of the ADAU1381. Playback Output 0 is sent to the left DAC, and Playback Output 1 is sent to the right DAC.

The digital and analog outputs have separate mute settings. In SigmaStudio, each of these is enabled by checking the appropriate box for the mute control.

There is a single flag in the sound engine that outputs a high or a low logic signal on the GPIO pin of the ADAU1381. This output is set by writing either a 0 or a 1 to the GPIO parameter.

MODE SELECTION

The sound engine can be put into three modes: REC A (Record A), REC B (Record B), or Playback. Using the settings on the two

mode selection blocks, the routing logic properly configures the signal flow for the selected mode. The parameter settings for each mode are shown in Tabl e 1.

Table 1. Record/Playback Modes

Mode Mode Selection REC Selection

REC A (Record A) 0 0 REC B (Record B) 0 1 Playback 1 Don’t care

MAIN PAGE

Figure 2. Main Page

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Controls

Set the audio mode by typing 0 or 1 into the audioMode cell in the default 28.0 format (see Figure 3). More information on 28.0 and other numeric formats can be found in the Numeric Formats section of the SigmaStudio help file.

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Figure 3. audioMode Control

Record Mode A (REC A) or Record Mode B (REC B) can be selected by typing 0 or 1 into the REC_Coeff cell in the default

28.0 format (see Figure 4).

Figure 4. REC_Coeff Control

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The playback (analog) output volume can be adjusted using the slewvol cell. Click and drag the slider to select a value (see Figure 5).

Click on the slider to type the value in directly (see Figure 6).

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Figure 6. slewvol Control Direct Value Entry

Click the dmute cell to disable the record (digital) output (see Figure 7). A check corresponds to a mute setting.

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Figure 7. dmute Control

Click the amute cell to disable the playback (analog) output (see Figure 8). A check corresponds to a mute setting.

Figure 8. amute Control

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To manually toggle the GPIO output, type a value into the GPIO cell (see Figure 9). This value is in 5.23 format. More information on 5.23 and other numeric formats can be found in the Numeric Formats section of the SigmaStudio help file.

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Figure 5. slewvol Control

Figure 9. GPIO Control

Table 2. Main Page Control Settings

Setting Name Description Default Control Type

audioMode Record/playback selection 0 Function selection REC_Coeff Selects REC A or REC B path 0 Function selection slewvol Analog volume control with slew 0 dB Processing parameter dmute Digital output mute using slew Enabled Processing parameter amute Analog output mute using slew Enabled Processing parameter GPIO Sets the GPIO pin high/low (active high) 0 Processing parameter

Parameters

The main page parameters are stored in RAM, as outlined in Table 3 . These addresses can be directly accessed and modified via the control port of the ADAU1381.

Table 3. Main Page Parameters

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

Dependent?

0x0009 audioMode DCInpAlg1 0x00, 0x00, 0x00, 0x00 Set record/playback mode 4 No 0x000A REC_Coeff DCInpAlg3 0x00, 0x00, 0x00, 0x00 Set record mode A or B 4 No 0x000B GPIO DCInpAlg4 0x00, 0x00, 0x00, 0x00 Set GPIO output flag 4 No 0x01B8 slewvol GainS200AlgGrow1gain_target 0x00, 0x80, 0x00, 0x00 Analog output volume control 4 No 0x07FA,

0X07FB

slewvol GainS200AlgGrow1alpha

0x00, 0x7F, 0xF2, 0x59, 0x00, 0x00, 0x0D, 0xA7

Slew rate for analog volume control

8 Yes

0x01B6 dmute MuteSWLinSlewAlg1mute 0x00, 0x00, 0x00, 0x00 Mute digital (record) output 4 No 0x01B7 dmute MuteSWLinSlewAlg1step 0x00, 0x00, 0x40, 0x00 Slew rate for digital mute 4 Yes 0x01BA amute MuteSWLinSlewAlg2mute 0x00, 0x00, 0x00, 0x00 Mute analog (playback) output 4 No 0x01BB amute MuteSWLinSlewAlg2step 0x00, 0x00, 0x40, 0x00 Slew rate for analog mute 4 Yes

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WIND NOISE REDUCTION PAGE

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Figure 10. Wind Noise Reduction Page

Description

The wind noise reduction page houses the wind noise reduction algorithm, which uses two microphones to detect and filter wind noise from the audio signal. Wind noise can easily overwhelm an audio recording; this reduction algorithm can be used to lower the effect and increase the clarity of the signal to be recorded. The algorithm works by detecting the presence of wind noise and smoothly enabling or disabling a high-pass filter that removes the noise from the signal. Much of the wind noise that the microphones pick up is at low frequencies; therefore, the cutoff frequency of the high-pass filter should be adjusted to adequately remove the unwanted noise.

such as from a fan blowing across, not directly onto, the microphones. The value can be entered by clicking the up/ down arrows or by entering text directly in the box.

Figure 12. Freq Control

Level 1 should be tuned while turning the wind source on and off and simultaneously tuning the parameter setting between 0 and 100. The Level 1 setting is recommended to be between 60 and 90, but this varies depending on the application. The value can be entered by clicking the up/down arrows or by entering text directly in the box.

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FILTERS

L R

WIND NOIS E

DETECTION

Figure 11. Wind Noise Reduction Block Diagram

WIND NOIS E REDUCTION

OUTPUTINPUTS

Routing and Bypass

The wind noise reduction processing path is automatically enabled on the multiplexer (MX3) when the sound engine is put into either Record Mode A or Record Mode B. When in playback mode, this mulitplexer bypasses the wind noise reduction algorithm. The switch on this page (WN) can be used to manually bypass the wind noise reduction, even in the record modes, if desired.

Controls

Three controls are recommended for in-system tuning: frequency (Freq), Level 1, and Level 2.

The frequency control sets the detector filters. This parameter should be tuned so that wind noise is removed, but the desired audio signal is preserved. The frequency parameter should be tuned while the system is presented with a constant wind noise,

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Figure 13. Level 1 Control

Level 2 should be tuned in the same way as Level 1; its settings range from 0 to 15, with 0 being for strong wind noise and 15 being

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for a signal with a weak wind noise component. The value can be entered by clicking the up/down arrows or by entering text directly in the box.

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Figure 14. Level 2 Control

The WN switch manually enables or bypasses the algorithm independently of multiplexer MX3, which allows the algorithm to be disabled even when a record mode is active. The switch can be changed by clicking on the appropriate radio button.

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Figure 15. WN Control

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Table 4. Wind Noise Reduction Page Control Settings

Setting Name Description Default Control Type

Freq High-pass filter setting 1000 Tune Attack (ms) Wind noise reduction effect attack time 5 Use default Release (ms) Wind noise reduction effect release time 2500 Use default Eff Gain Effect gain 5 Use default tc 1 (ms) Time constant 22 Use default Level 1 Level of wind noise reduction 70 Tune Level 2 Wind noise strength (0 = strong, 15 = weak) 4 Tune WN Switch Bypass Switch to disable algorithm Enable algorithm Function selection MX3 Mux Bypass Switch to bypass algorithm (via multiplexer) Enable algorithm Function selection

Parameters

The wind noise reduction page parameters are stored in RAM, as outlined in Tabl e 5. These addresses can be directly accessed and modified via the control port of the ADAU1381.

Table 5. Wind Noise Reduction Page Parameters

Cell

Address

0x0011 WNAlg WindNoiseAlg2F11 0x00, 0xE8, 0x5D, 0x19 Frequency and effect gain parameters 4 Yes 0x0012 WNAlg WindNoiseAlg2F12 0xFF, 0x95, 0xA1, 0x9C Frequency and effect gain parameters 4 Yes 0x0013 WNAlg WindNoiseAlg2F20 0x00, 0x00, 0x80, 0x53 Frequency and effect gain parameters 4 Yes 0x0014 WNAlg WindNoiseAlg2F21 0x00, 0x01, 0x00, 0xA6 Frequency and effect gain parameters 4 Yes 0x0015 WNAlg WindNoiseAlg2F30 0x00, 0xE8, 0xD0, 0x3A Frequency and effect gain parameters 4 Yes 0x0016 WNAlg WindNoiseAlg2F31 0xFE, 0x2E, 0x5F, 0x8D Frequency and effect gain parameters 4 Yes 0x0017 WNAlg WindNoiseAlg2F42 0x00, 0x80, 0x00, 0x00 Frequency and effect gain parameters 4 Yes 0x0018 WNAlg WindNoiseAlg2tc1 0x00, 0x00, 0x20, 0x00 Time constant 1 (ms) 4 Yes 0x0019 WNAlg WindNoiseAlg2tc11 0x00, 0x7F, 0xE0, 0x00 Time constant 1 (ms) 4 Yes 0x001A WNAlg WindNoiseAlg2tc2 0x00, 0x00, 0x20, 0x00 Time constant 2 (ms) 4 Yes 0x001B WNAlg WindNoiseAlg2tc22 0x00, 0x7F, 0xE0, 0x00 Time constant 2 (ms) 4 Yes 0x001C WNAlg WindNoiseAlg2Level1 0x00, 0x59, 0x99, 0x9A Level 1 4 No 0x001D WNAlg WindNoiseAlg2Level2 0x00, 0x08, 0x00, 0x00 Level 2 4 No 0x001E WNAlg WindNoiseAlg2attack 0x00, 0x00, 0x80, 0x00 Attack (ms) 4 Yes 0x001F WNAlg WindNoiseAlg2release 0x00, 0x00, 0x00, 0x40 Release (ms) 4 Yes 0x0020 WN stereomux1940ns40 0x00, 0x00, 0x00, 0x00

0x0021 WN stereomux1940ns41 0x00, 0x80, 0x00, 0x00

Name Parameter Name Default Value Function Bytes

On/off (burst write Address 0x0020 and Address 0x0021 together)

On/off (burst write Addresses 0x0020 and Address 0x0021 together)

4 No

Sample Rate Dependent?

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ENHANCED STEREO CAPTURE PAGE

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Figure 16. Enhanced Stereo Capture Page

Description

The enhanced stereo capture (ESC) algorithm takes a stereo record signal and creates a wider stereo image. ESC is used as a recording algorithm to capture an enhanced stereo image from two closely spaced microphones.

The ESC algorithm takes two input signals from two closely spaced microphones. The algorithm separates these two signals and widens the stereo image. The result is a perceived widened stereo image as if the audio was captured by microphones with greater left/right separation. ESC is based on proprietary filtering and a stereo balance gain that adjusts how much stereo effect is achieved in the algorithm.

Routing and Bypass

The enhanced stereo capture path is automatically enabled on the mux (rec_play) when the sound engine is put into either REC A or REC B. When in playback mode, the mux bypasses the wind noise reduction algorithm. The switch on this page (SS) can be used to bypass the enhanced stereo capture, even in the record modes, if desired.

Controls

The MicDistance control can be set from −10 to +10, with a default value of 0 (see Figure 17). This control determines the sensitivity of the ESC algorithm and directly affects the level of stereo enhancement perceived in the recorded signal. Increasing the enhancement too much may result in an unnatural quality in the recorded audio. This control may vary greatly depending on factors such as microphone selection, spacing, and housing. Therefore, it must be tuned to fit the needs of a specific design.

Figure 17. MicDistance Control

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Right-click the slider to enter the value directly (see Figure 18).

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Figure 18. MicDistance Control Direct Value Entry

The SS switch allows the algorithm to be bypassed independently of the rec_play multiplexer and the active audio mode. The switch can be changed by clicking on the appropriate radio button.

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Figure 19. SS Control

Table 6. ESC Page Control Settings

Setting Name Description Default Control Type

MicDistance Control enhancement level 0 Tune SS Switch Bypass Switch to disable algorithm Algorithm enabled Function selection rec_play Mux Bypass Switch to bypass algorithm (via multiplexer) Algorithm enabled Function selection

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Parameters

The enhanced stereo capture page parameters are stored in RAM, as outlined in Tabl e 7. These addresses can be directly accessed and modified via the control port of the ADAU1381.

Table 7. ESC Page Parameters

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x0029 MicDistance Gain1940AlgNS1 0x00, 0x80, 0x00, 0x00

0x002B SS stereomux1940ns30 0x00, 0x00, 0x00, 0x00

0x002C SS stereomux1940ns31 0x00, 0x80, 0x00, 0x00

0x0023 Locked Cell param1 0x00, 0xCA, 0x9A, 0x58

0x0024 Locked Cell param2 0x0F, 0x35, 0x65, 0xA8

0x0025 Locked Cell param3 0x00, 0x7F, 0xAA, 0xE7

0x0026 Locked Cell param4 0x00, 0x08, 0x38, 0x65

0x0027 Locked Cell param5 0x00, 0x00, 0x00, 0x00

0x0028 Locked Cell param6 0x00, 0x7B, 0x1A, 0x7E

Gain setting related to the distance between microphones that enhances the perceived effect

On/off (burst write Address0x002B and Address 0x002C together)

On/off (burst write Address 0x002B and Address 0x002C together)

Locked parameter (generated by SigmaStudio)

4 No

4 Yes

EQUALIZATION FILTERS PAGE

Dependent?

Figure 20. Equalization Filters Page

Description

Equalization (EQ) filters are used to tune the frequency response of the recorded or played back audio signal. The ADAU1381 sound engine includes three, six-band EQ paths, one for playback and the other two for different recording scenarios, such as music recording and voice.

Each EQ band is implemented as a double-precision biquad filter. These filters can be used in a wide variety of configurations, such as low-pass, high-pass, band-pass, parametric, shelving, peaking, tone control, and others.

Routing and Bypass

There are three, six-band EQ paths in the sound engine: one each for Record A (REC A), Record B (REC B), and Playback modes. Path 0 (top row) is the EQ filters for Record A (REC A), Path 1 (middle row) is the EQ filters for Record B (REC B), and Path 2 (bottom row) is the filters for the playback processing.

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The appropriate path is automatically selected when the mode is selected on the main page

The switch

on this page (filtS) can be used to completely bypass

.

the EQFilter, if desired.

Controls

Click Show on the EQFilter cell to configure the filter bands (see Figure 21).

Figure 21. EQFilter Control with Show Button

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When Show is clicked, it displays a filter matrix with three rows and six columns (see Figure 22).

022

Figure 22. EQFilter Matrix

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The first row represents the six bands of the Record A (REC A) mode, the second

row represents the six bands of the Record B

(REC B) mode, and the third row represents the six bands of the Playback mode.

Each button in the matrix contains a single second-order biqua

d

filter. To individually tune a filter, click its corresponding button.

Clicking the menu at the top of the General Filter Settings window provides access to a large variety of filters, each with its own property pages and controls (see Figure 23 and Figure 24).

The Simulated Frequency Response window displays a calculated frequency response for each of the filter bands. It shows only one EQ curve at a time, the one corresponding to the filter mode that was last edited.

By default, the EQ curve for Record A (REC A) mode is configured for voice recording (see Figure 27). The high-pass filter removes low frequencies that are not necessary for voice recording. The wide boost in the 150 Hz range amplifies the voice fundamental frequencies, and the narrow boost near 4 kHz increases vocal clarity.

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Figure 23. Individual Filter Band Settings

Figure 24. F

ilter Type Selection

024

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More information on the various filters is available in the Help menu within SigmaStudio.

Click Stimulus and Probe to open the Simulated Frequency Response window (see Figure 25 and gure 26).

Figure 25. Stimulus Button

Fi

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Figure 27. Default Record A (REC A) Mode EQ Curve

By default, the EQ curve for Record B (REC B) mode is configured for music and live concert recording (see Figure 28). The highpass filter removes low frequency boom and rumble from a concert recording environment. The cut in the midbass range around 300 Hz helps to increase the perceived level of the bass. The low-pass filter on the high frequency range helps to reduce ringing caused by reflections in a loud concert environment.

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Figure 28. Default Record B (REC B) Mode EQ Curve

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Figure 26. Probe Button

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By default, the EQ curve for Playback mode is flat, which should be changed accordingly to compensate for nonlinearities due to the speaker design and housing (see Figure 29).

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Figure 29. Default Playback Mode EQ Curve

Table 8. EQ Page Control Settings

Setting Name Description Default Control Type

EQFilter Three parallel six-band equalizers with independently controllable bands

filtS Switch to disable algorithm Algorithm enabled Function selection

The default EQ curves are intended only as examples and should be specifically tuned for the target application system.

Example curves for record and playback

Tune

Parameters

The equalization filters page parameters are stored in RAM, as outlined in Tab le 9. These addresses can be directly accessed and modified via the control port of the ADAU1381.

Table 9. EQ Page Parameters

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x002D EQFilter IndexSelMultBandAlg100b2 0x00, 0x7F, 0xAA, 0x50, Biquad F0, 0 20 Yes 0x002E 0xFF, 0x00, 0xAB, 0x60, 0x002F 0x00, 0x7F, 0xAA, 0x50, 0x0030 0xFF, 0x80, 0xAB, 0x20, 0x0031 0x00, 0xFF, 0x54, 0x5F 0x0032 EQFilter IndexSelMultBandAlg101b2 0x00, 0x7D, 0xBD, 0xAF, Biquad F0, 1 20 Yes 0x0033 0xFF, 0x02, 0x0A, 0x2E, 0x0034 0x00, 0x80, 0x42, 0x4A, 0x0035 0xFF, 0x82, 0x00, 0x07, 0x0036 0x00, 0xFD, 0xF5, 0xD2 0x0037 EQFilter IndexSelMultBandAlg102b2 0x00, 0x00, 0x00, 0x00, Biquad F0, 2 20 Yes 0x0038 0x00, 0x00, 0x00, 0x00, 0x0039 0x00, 0x80, 0x00, 0x00, 0x003A 0x00, 0x00, 0x00, 0x00, 0x003B 0x00, 0x00, 0x00, 0x00 0x003C EQFilter IndexSelMultBandAlg103b2 0x00, 0x00, 0x00, 0x00, Biquad F0, 3 20 Yes 0x003D 0x00, 0x00, 0x00, 0x00, 0x003E 0x00, 0x80, 0x00, 0x00, 0x003F 0x00, 0x00, 0x00, 0x00, 0x0040 0x00, 0x00, 0x00, 0x00

Dependent?

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Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x0041 EQFilter IndexSelMultBandAlg104b2 0x00, 0x71, 0xCB, 0x91, Biquad F0, 4 20 Yes 0x0042 0xFF, 0x2E, 0xCC, 0xE6, 0x0043 0x00, 0x81, 0xA0, 0xD2, 0x0044 0xFF, 0x8C, 0x93, 0x9D, 0x0045 0x00, 0xD1, 0x33, 0x1A 0x0046 EQFilter IndexSelMultBandAlg105b2 0x00, 0x00, 0x00, 0x00, Biquad F0, 5 20 Yes 0x0047 0x00, 0x00, 0x00, 0x00, 0x0048 0x00, 0x80, 0x00, 0x00, 0x0049 0x00, 0x00, 0x00, 0x00, 0x004A 0x00, 0x00, 0x00, 0x00 0x004B EQFilter IndexSelMultBandAlg110b2 0x00, 0x7E, 0xFB, 0x24, Biquad F1, 0 20 Yes 0x004C 0xFF, 0x02, 0x09, 0xB7, 0x004D 0x00, 0x7E, 0xFB, 0x24, 0x004E 0xFF, 0x82, 0x06, 0xEE, 0x004F 0x00, 0xFD, 0xF3, 0x80 0x0050 EQFilter IndexSelMultBandAlg111b2 0x00, 0x7D, 0xEB, 0x86, Biquad F1, 1 20 Yes 0x0051 0xFF, 0x02, 0x83, 0x95, 0x0052 0x00, 0x7F, 0xC2, 0xF7, 0x0053 0xFF, 0x82, 0x51, 0x83, 0x0054 0x00, 0xFD, 0x7C, 0x6B 0x0055 EQFilter IndexSelMultBandAlg112b2 0x00, 0x00, 0x00, 0x00, Biquad F1, 2 20 Yes 0x0056 0x00, 0x00, 0x00, 0x00, 0x0057 0x00, 0x80, 0x00, 0x00, 0x0058 0x00, 0x00, 0x00, 0x00, 0x0059 0x00, 0x00, 0x00, 0x00 0x005A EQFilter IndexSelMultBandAlg113b2 0x00, 0x00, 0x00, 0x00, Biquad F1, 3 20 Yes 0x005B 0x00, 0x00, 0x00, 0x00, 0x005C 0x00, 0x80, 0x00, 0x00, 0x005D 0x00, 0x00, 0x00, 0x00, 0x005E 0x00, 0x00, 0x00, 0x00 0x005F EQFilter IndexSelMultBandAlg114b2 0x00, 0x00, 0x00, 0x00, Biquad F1, 4 20 Yes 0x0060 0x00, 0x00, 0x00, 0x00, 0x0061 0x00, 0x80, 0x00, 0x00, 0x0062 0x00, 0x00, 0x00, 0x00, 0x0063 0x00, 0x00, 0x00, 0x00 0x0064 EQFilter IndexSelMultBandAlg115b2 0x00, 0x4A, 0x91, 0x00, Biquad F1, 5 20 Yes 0x0065 0x00, 0x95, 0x22, 0x00, 0x0066 0x00, 0x4A, 0x91, 0x00, 0x0067 0xFF, 0xD1, 0x47, 0xB1, 0x0068 0xFF, 0x84, 0x74, 0x4F 0x0069 EQFilter IndexSelMultBandAlg120b2 0x00, 0x00, 0x00, 0x00, Biquad F2, 0 20 Yes 0x006A 0x00, 0x00, 0x00, 0x00, 0x006B 0x00, 0x80, 0x00, 0x00, 0x006C 0x00, 0x00, 0x00, 0x00, 0x006D 0x00, 0x00, 0x00, 0x00 0x006E EQFilter IndexSelMultBandAlg121b2 0x00, 0x00, 0x00, 0x00, Biquad F2, 1 20 Yes 0x006F 0x00, 0x00, 0x00, 0x00, 0x0070 0x00, 0x80, 0x00, 0x00, 0x0071 0x00, 0x00, 0x00, 0x00, 0x0072 0x00, 0x00, 0x00, 0x00

Dependent?

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Evaluation Board User Guide UG-030

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x0073 EQFilter IndexSelMultBandAlg122b2 0x00, 0x00, 0x00, 0x00, Biquad F2, 2 20 Yes 0x0074 0x00, 0x00, 0x00, 0x00, 0x0075 0x00, 0x80, 0x00, 0x00, 0x0076 0x00, 0x00, 0x00, 0x00, 0x0077 0x00, 0x00, 0x00, 0x00 0x0078 EQFilter IndexSelMultBandAlg123b2 0x00, 0x00, 0x00, 0x00, Biquad F2, 3 20 Yes 0x0079 0x00, 0x00, 0x00, 0x00, 0x007A 0x00, 0x80, 0x00, 0x00, 0x007B 0x00, 0x00, 0x00, 0x00, 0x007C 0x00, 0x00, 0x00, 0x00 0x007D EQFilter IndexSelMultBandAlg124b2 0x00, 0x00, 0x00, 0x00, Biquad F2, 4 20 Yes 0x007E 0x00, 0x00, 0x00, 0x00, 0x007F 0x00, 0x80, 0x00, 0x00, 0x0080 0x00, 0x00, 0x00, 0x00, 0x0081 0x00, 0x00, 0x00, 0x00 0x0082 EQFilter IndexSelMultBandAlg125b2 0x00, 0x00, 0x00, 0x00, Biquad F2, 5 20 Yes 0x0083 0x00, 0x00, 0x00, 0x00, 0x0084 0x00, 0x80, 0x00, 0x00, 0x0085 0x00, 0x00, 0x00, 0x00, 0x0086 0x00, 0x00, 0x00, 0x00 0x008E filtS stereomux1940ns10 0x00, 0x00, 0x00, 0x00

0x008F filtS stereomux1940ns11 0x00, 0x80, 0x00, 0x00

On/off (burst write Address 0x008E and Address 0x008F together)

4 No

Dependent?

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UG-030 Evaluation Board User Guide

DUAL-BAND COMPRESSION PAGE

Figure 30. Dual-Band Compression Page

Description

The dual-band compression page contains dynamic processors designed to alter the dynamic range of the audio signal during record or playback. To provide high audio quality, the input signal is sent into a crossover network that divides it into high and low bands. Each band is detected and processed individually. The end result is that a sudden peak in one band (for example, a kick drum in the low band) will not cause a dip in the overall signal level.

Available Curves

By default, the record modes are configured with an automatic level control (ALC) curve, and the playback mode is configured with a standard compressor curve with a threshold of −6 dB and a ratio of 2:1. The Record A (REC A) mode curve is an example of hard ALC compression (see Figure 31), and the Record B (REC B) mode curve is an example of smoothed ALC compression (see Figure 32). The playback mode compressor curve has moderate compression starting at a threshold of −8 dB (see Figure 33). These default curves are intended only to be examples. The desired curve varies greatly depending on the application and other factors in the system. Therefore, unique curves should be created during the

tuning process.

Figure 31, Figure 32, and Figure 33 show examples of compressor curves. The curves represent a transfer function, with the horizontal axis representing input in dB and the vertical axis representing the resulting output in dB.

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Figure 31. Default Record A (REC A) Mode Compressor Curve

Figure 32. Default Record B (REC B) Mode Compressor Curve

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Evaluation Board User Guide UG-030

Detection Range Shift

The detection range control shifts the range over which the compressor operates. The algorithm typically handles inputs ranging from −90 dB to +6 dB. Any inputs outside of this range have a linear input-to-output relationship, effectively ignoring the compression curve. In applications where inputs to the compressor greater than 6 dB are expected, the detection range can be shifted to accommodate the input signal range. The default shift of −12 dB changes the detection range’s lower bound to −78 dB and its upper bound to +18 dB. This curve

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Figure 33. Default Playback Mode Compressor Curve

Curve Shift

The compressor curves can be shifted to the right using the ShiftLR control. This changes the input gain of the audio and detects signals routed to the compressor. The default value of 0 dB represents no shift from the original curve. Decreasing this value translates the compressor curves directly to the right by a corresponding amount. Note that there is no graphical difference shown on the compressor curve graphs, but the compressor curve points effectively shift directly to the right as the value of the slider decreases. The maximum shift allowed is 12 dB.

For a classic compression curve (linear compression ratio for low amplitudes and a ratio greater than 1 after a certain threshold), the ShiftLR control effectively increases the threshold value. The ShiftLR control allows a curve to be shifted at run time without requiring a download of new compression table parameters via the control port.

Figure 34 shows an example of curve shift being applied to an example compression curve with a gate below −80 dB, a linear transfer function between −80 dB and −28 dB, and a compression ratio of 2:1 for input amplitudes greater than −28 dB. The example curve is shown furthest to the left. Shifted curves for −3 dB, −6 dB,

−9 dB, and −12 dB are shown to the right of the example curve. For all shifted curves, the compression threshold remains constant, but the gate threshold changes. The output gain for the linear section of the input range decreases as the curve shifts to the right.

20

0

–20

–40

–60

OUTPUT LEVEL (dB)

–80

–100 –113

–90 0–20–40–60–80

Figure 34. Curve Shift L/R Example

INPUT LEVEL (dB)

08356-034

shift must correspond to the compressors Adjust Gain Curve setting, shown in Figure 39.

The compression curve displayed in the compression curve graph represents a detection range shift of 0 dB. Decreasing the detection range effectively shifts the curve upward and to the right.

The detection range shift should be determined during system tuning and should not be altered when the system is in operation.

Figure 35 shows an example of detection range shift being applied to an example compression curve with a gate below

−80 dB, a linear transfer function between −80 dB and −28 dB, and a compression ratio of 2:1 for input amplitudes greater than

−28 dB. The example curve is shown furthest to the bottom and the left. Shifted curves for −3 dB, −6 dB, −9 dB, and −12 dB are shown above and to the right of the example curve. For all shifted curves, both the compression and gate thresholds increase, but the linear section of the input range remains linear.

20

0

–20

–40

–60

OUTPUT LEVEL (dB)

–80

–100 –113

–90 0–20–40–60–80

Figure 35. Detection Range Shift Example

INPUT LEVEL (dB)

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Routing and Bypass

The dual-band compression algorithm is enabled by default in all audio modes. The compS switch allows the dual-band compressor to be bypassed manually.

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UG-030 Evaluation Board User Guide

Controls

The ShiftLR control shifts the compression curve horizontally. The slider can be dragged to change the value (see Figure 36). The default value of 0 dB indicates that the transfer function displayed in the compression curve editor matches the processing in the sound engine. Decreasing the value of the control shifts the curve to the right.

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Figure 36. ShiftLR Control

Right-click the slider to type the value in directly (see Figure 37).

Figure 37. ShiftLR Control Direct Value Entry

The Det_Range control shifts the compression curve diagonally (see Figure 38). The Det_Range value can be controlled by dragging the slider or by entering the value manually by rightclicking the slider. The Det_Range control is only intended to take on the following values: 0 dB, −3 dB, −6 dB, −9 dB, and −12 dB.

08356-039

Figure 39. Changing the Detection Curve of a Compressor

Each frequency band (low and high) is fed into a stereo compressor matrix (see Figure 40). Each matrix contains three compressors, one for each audio mode. The left column

08356-037

corresponds to Record A (REC A) mode, the center column corresponds to Record B (REC B) mode, and the right column corresponds to Playback mode.

08356-038

Figure 38. Det_Range Control

When the detection range is modified, the compressors must also be configured to match. By default, the compressors are configured for a detection range shift of −12 dB. To change the compressor detection range, click on a compressor cell, select the Adjust Gain Curve option, and select the value matching the setting of the Det_Range control (see Figure 39). Complete this process for both the high-band and low-band compressors.

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Figure 40. HighPass_Comp Control

08356-040

Each compressor column contains a Post Gain control that adjusts the amount of gain applied to the signal at the output of the compressor (see Figure 41).

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Figure 41. Post Gain Control

The Hold (ms) control sets the duration that the gain reduction ratio of the compressor is held after it is set by the input signal (see Figure 42).

08356-042

Figure 42. Hold (ms) Control

Evaluation Board User Guide UG-030

3

4

The Decay (dB/s) control sets the speed by which the gain reduction ratio decays after the hold duration expires (see Figure 4

3).

Figure 43. Decay (dB/s) Control

08356-04

Click the Soft Knee button to smooth the corners (also known as knees) of the Compression Curve (see Figure 44).

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Figure 44. Soft Knee Button

Click the Show Graph button to display the Compression Curve graphical editor (see Figure 45).

08356-045

Figure 45. Show Graph Button

The Compression Curve editor displays a graphical representation of the input/output gain transfer function, which is a curve with 33 points (see Figure 46). The horizontal axis represents the input level, and the vertical axis represents the output level. Each large point can be dragged to a new position on the graph.

Click on a point within the graph to display the Compression Curve Point Option menu. This is where large points can be added, removed, or fine-tuned (see Figure 47).

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Figure 47. Compression Curve Point Option Menu

Click on a set point value to display a dialog box where the coordinates of the point can be entered manually (see Figure 48).

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Figure 48. Compression Curve Point Direct Value Entry

The compS switch allows the dual-band compressors to be bypassed (see Figure 49). Click on the appropriate radio button to change the switch.

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Figure 49. compS Control

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Figure 46. Compression Curve Editor

Table 10. Dual-Band Compression Page Control Settings

Setting Name Description Default Control Type

ShiftLR Shift curve left/right 0 Tune Det_Range Fixed gain for extended detection range −12 Tune CrossHi Crossover for high frequencies N/A Locked CrossLo Crossover for low frequencies N/A Locked HiDet Filter Filter for high frequency detector N/A Locked LoDet Filter Filter for low frequency detector N/A Locked HIGH-PASS COMPRESSOR

Post Gain (dB) Gain applied to the output of the compressor 0 Tune Hold (ms)

Duration that the gain reduction ratio of the compressor

2 Tune

is held after it is set by the input signal

Decay (dB/s)

Speed that the gain reduction ratio of the compressor

2 Tune

decreases after the hold time expires Soft Knee Smooths the compression curve Active Tune Graph Editor

Graphical entry of compression curve (input/output

gain transfer function)

Default compression curves

Tune

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UG-030 Evaluation Board User Guide

Setting Name Description Default Control Type

LOW-PASS COMPRESSOR

Post Gain (dB) Gain applied to the output of the compressor 0 Tune Hold (ms)

Decay (dB/s)

Soft Knee Smooths the compression curve Active Tune Graph Editor

compS Switch/mux bypass Algorithm enabled Function selection

Duration that the gain reduction ratio of the compressor is held after it is set by the input signal

Speed that the gain reduction ratio of the compressor decreases after the hold time expires

Graphical entry of compression curve (input/output gain transfer function)

Parameters

The dual-band compression page parameters are stored in RAM, as outlined in Ta ble 1 1. These addresses can be directly accessed and modified via the control port of the ADAU1381.

Table 11. Dual-Band Compression Page Parameters

Address Cell Name Parameter Name Default Value Function Bytes

0x0090 ShiftLR Gain1940AlgNS4 0x00, 0x80, 0x00, 0x00

0x0091 ShiftLR Gain1940AlgNS5 0x00, 0x80, 0x00, 0x00

0x0092 Det_Range Gain1940AlgNS3 0x00, 0x20, 0x26, 0xF3

0x0093 Det_Range Gain1940AlgNS2 0x00, 0x20, 0x26, 0xF3

0x00A2 CrossHi EQwSubDualDP32B1 0x00, 0x7B, 0xEB, 0x74

0x00A3 CrossHi EQwSubDualDP31B1 0x0F, 0x08, 0x29, 0x18

0x00A4 CrossHi EQwSubDualDP30B1 0x00, 0x7B, 0xEB, 0x74

0x00A5 CrossHi EQwSubDualDP32A1 0x0F, 0x88, 0x07, 0xC9

0x00A6 CrossHi EQwSubDualDP31A1 0x00, 0xF7, 0xB5, 0x9A

0x00A7 CrossHi EQwSubDualDP32B2 0x00, 0x7B, 0xEB, 0x74

0x00A8 CrossHi EQwSubDualDP31B2 0x0F, 0x08, 0x29, 0x18

0x00A9 CrossHi EQwSubDualDP30B2 0x00, 0x7B, 0xEB, 0x74

0x00AA CrossHi EQwSubDualDP32A2 0x0F, 0x88, 0x07, 0xC9

0x00AB CrossHi EQwSubDualDP31A2 0x00, 0xF7, 0xB5, 0x9A

2 Tune

Default compression curves

Shift curve left/right; Address 0x0090 and Address 0x0091 must contain the same value

On/off (burst write Address 0x0092 and Address 0x0093 together)

Crossover HPF filter coefficient

Tune

Sample Rate Dependent?

4 No

4 Yes

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Evaluation Board User Guide UG-030

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x0094 CrossLo EQwSubDualDP42B1 0x00, 0x00, 0x10, 0xA7

0x0095 CrossLo EQwSubDualDP41B1 0x00, 0x00, 0x21, 0x4E

0x0096 CrossLo EQwSubDualDP40B1 0x00, 0x00, 0x10, 0xA7

0x0097 CrossLo EQwSubDualDP42A1 0x0F, 0x88, 0x07, 0xC9

0x0098 CrossLo EQwSubDualDP41A1 0x00, 0xF7, 0xB5, 0x9A

0x0099 CrossLo EQwSubDualDP42B2 0x00, 0x00, 0x10, 0xA7

0x009A CrossLo EQwSubDualDP41B2 0x00, 0x00, 0x21, 0x4E

0x009B CrossLo EQwSubDualDP40B2 0x00, 0x00, 0x10, 0xA7

0x009C CrossLo EQwSubDualDP42A2 0x0F, 0x88, 0x07, 0xC9

0x009D CrossLo EQwSubDualDP41A2 0x00, 0xF7, 0xB5, 0x9A

0x00BE HiDet_Filter EQwSubDualDP52B1 0x00, 0x7D, 0x44, 0xE0

0x00BF HiDet_Filter EQwSubDualDP51B1 0x0F, 0x05, 0x76, 0x40

0x00C0 HiDet_Filter EQwSubDualDP50B1 0x00, 0x7D, 0x44, 0xE0

0x00C1 HiDet_Filter EQwSubDualDP52A1 0x0F, 0x85, 0x67, 0x55

0x00C2 HiDet_Filter EQwSubDualDP51A1 0x00, 0xFA, 0x7A, 0xD5

0x00C3 HiDet_Filter EQwSubDualDP52B2 0x00, 0x7D, 0x44, 0xE0

0x00C4 HiDet_Filter EQwSubDualDP51B2 0x0F, 0x05, 0x76, 0x40

0x00C5 HiDet_Filter EQwSubDualDP50B2 0x00, 0x7D, 0x44, 0xE0

0x00C6 HiDet_Filter EQwSubDualDP52A2 0x0F, 0x85, 0x67, 0x55

0x00C7 HiDet_Filter EQwSubDualDP51A2 0x00, 0xFA, 0x7A, 0xD5

0x00B0 LoDet_Filter EQwSubDualDP62B1 0x00, 0x00, 0x24, 0xE2

0x00B1 LoDet_Filter EQwSubDualDP61B1 0x00, 0x00, 0x49, 0xC4

Crossover LPF filter coefficient

Crossover HPF detection path filter coefficient

Crossover LPF detection path filter coefficient

4 Yes

Dependent?

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UG-030 Evaluation Board User Guide

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x00B2 LoDet_Filter EQwSubDualDP60B1 0x00, 0x00, 0x24, 0xE2

0x00B3 LoDet_Filter EQwSubDualDP62A1 0x0F, 0x8B, 0xDA, 0xCC

0x00B4 LoDet_Filter EQwSubDualDP61A1 0x00, 0xF3, 0x91, 0xAC

0x00B5 LoDet_Filter EQwSubDualDP62B2 0x00, 0x00, 0x24, 0xE2

0x00B6 LoDet_Filter EQwSubDualDP61B2 0x00, 0x00, 0x49, 0xC4

0x00B7 LoDet_Filter EQwSubDualDP60B2 0x00, 0x00, 0x24, 0xE2

0x00B8 LoDet_Filter EQwSubDualDP62A2 0x0F, 0x8B, 0xDA, 0xCC

0x00B9 LoDet_Filter EQwSubDualDP61A2 0x00, 0xF3, 0x91, 0xAC

0x00CC HighPass_Comp PeakDBCompLUTAlgPG30decay 0x00, 0x00, 0x00, 0x04 REC_Auto: decay 4 Yes 0x00CD HighPass_Comp PeakDBCompLUTAlgPG30hold 0x00, 0x00, 0x00, 0x60 REC_Auto: hold 4 Yes

Crossover LPF detection path filter coefficient

4 Yes

Dependent?

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Evaluation Board User Guide UG-030

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x00CE HighPass_Comp PeakDBCompLUTAlgPG30tab 0x00, 0x05, 0x1A, 0x96, REC_Auto: 132 No 0x00CF 0x00, 0x04, 0xB6, 0x9B, compressor 0x00D0 0x00, 0x04, 0xAD, 0x54, curve points 0x00D1 0x00, 0x05, 0x55, 0x55, 0x00D2 0x00, 0x08, 0x55, 0xC1, 0x00D3 0x00, 0x11, 0x6C, 0xA5, 0x00D4 0x00, 0x25, 0x0E, 0xD2, 0x00D5 0x00, 0x4D, 0x9C, 0x93, 0x00D6 0x00, 0xA0, 0x10, 0xF5, 0x00D7 0x01, 0x46, 0xB2, 0x33, 0x00D8 0x02, 0x80, 0x9F, 0x0A, 0x00D9 0x03, 0xF0, 0xCE, 0x62, 0x00DA 0x05, 0x54, 0x59, 0xF2, 0x00DB 0x05, 0xEF, 0xF5, 0xFC, 0x00DC 0x05, 0xBA, 0x65, 0x98, 0x00DD 0x05, 0x17, 0xAD, 0xEF, 0x00DE 0x04, 0x3A, 0x77, 0xC5, 0x00DF 0x03, 0x56, 0xDC, 0x88, 0x00E0 0x02, 0x8B, 0x2A, 0xC5, 0x00E1 0x01, 0xE7, 0x60, 0xA5, 0x00E2 0x01, 0x67, 0x06, 0x39, 0x00E3 0x01, 0x05, 0xD8, 0x28, 0x00E4 0x00, 0xBE, 0x7E, 0xE5, 0x00E5 0x00, 0x8A, 0x46, 0xF6, 0x00E6 0x00, 0x64, 0x17, 0x5B, 0x00E7 0x00, 0x48, 0x3E, 0xCA, 0x00E8 0x00, 0x34, 0x06, 0x48, 0x00E9 0x00, 0x25, 0x6A, 0x11, 0x00EA 0x00, 0x1A, 0xE6, 0xE6, 0x00EB 0x00, 0x13, 0x05, 0xC6, 0x00EC 0x00, 0x0D, 0x73, 0x73, 0x00ED 0x00, 0x09, 0x82, 0xE3, 0x00EE 0x00, 0x06, 0xB9, 0xBA 0x0138 HighPass_Comp PeakDBCompLUTAlgPG30post_gain 0x00, 0x80, 0x00, 0x00 REC_Auto: post gain 4 No 0x00EF HighPass_Comp PeakDBCompLUTAlgPG31decay 0x00, 0x00, 0x00, 0x12 REC_Manual: decay 4 Yes 0x00F0 HighPass_Comp PeakDBCompLUTAlgPG31hold 0x00, 0x00, 0x01, 0xE0 REC_Manual: hold 4 Yes

Dependent?

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UG-030 Evaluation Board User Guide

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x00F1 HighPass_Comp PeakDBCompLUTAlgPG31tab 0x00, 0x1D, 0xC7, 0xFA, REC_Manual: 132 No 0x00F2 0x00, 0x1F, 0xA6, 0x78, compressor 0x00F3 0x00, 0x24, 0xCD, 0xBF, curve points 0x00F4 0x00, 0x2D, 0xB0, 0xDE, 0x00F5 0x00, 0x3A, 0x4E, 0x7F, 0x00F6 0x00, 0x47, 0xE3, 0x23, 0x00F7 0x00, 0x67, 0x41, 0xE8, 0x00F8 0x00, 0xA1, 0x64, 0x8B, 0x00F9 0x00, 0xF3, 0x71, 0x72, 0x00FA 0x01, 0x4B, 0x5C, 0x80, 0x00FB 0x01, 0x96, 0x84, 0x19, 0x00FC 0x01, 0xF9, 0x0D, 0x62, 0x00FD 0x02, 0x8A, 0xA7, 0xCA, 0x00FE 0x03, 0x24, 0x67, 0xA2, 0x00FF 0x03, 0x9A, 0x7A, 0x83, 0x0100 0x03, 0xD1, 0x34, 0x62, 0x0101 0x03, 0xA2, 0xBD, 0x15, 0x0102 0x03, 0x3D, 0x07, 0x65, 0x0103 0x02, 0xC9, 0xE3, 0xC3, 0x0104 0x02, 0x4D, 0x52, 0x70, 0x0105 0x01, 0xCE, 0xBA, 0xD0, 0x0106 0x01, 0x5C, 0x48, 0xE1, 0x0107 0x00, 0xFF, 0x34, 0xC9, 0x0108 0x00, 0xB8, 0x8A, 0x49, 0x0109 0x00, 0x83, 0xA5, 0x3C, 0x010A 0x00, 0x5D, 0x40, 0x76, 0x010B 0x00, 0x42, 0x04, 0x69, 0x010C 0x00, 0x2E, 0xBC, 0x93, 0x010D 0x00, 0x21, 0x16, 0x45, 0x010E 0x00, 0x17, 0x65, 0x63, 0x010F 0x00, 0x10, 0x8B, 0x23, 0x0110 0x00, 0x0B, 0xB2, 0xB1, 0x0111 0x00, 0x08, 0x45, 0x91 0x0139 HighPass_Comp PeakDBCompLUTAlgPG31post_gain 0x00, 0x80, 0x00, 0x00

0x0112 HighPass_Comp PeakDBCompLUTAlgPG32decay 0x00, 0x00, 0x00, 0xB6 Speaker: decay 4 Yes 0x0113 HighPass_Comp PeakDBCompLUTAlgPG32hold 0x00, 0x00, 0x00, 0xF0 Speaker: hold 4 Yes

REC_Manual: post gain

4 No

Dependent?

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Evaluation Board User Guide UG-030

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x0114 HighPass_Comp PeakDBCompLUTAlgPG32tab 0x00, 0x80, 0x00, 0x00, Speaker: 132 No 0x0115 0x00, 0x80, 0x00, 0x00, compressor 0x0116 0x00, 0x80, 0x00, 0x00, curve points 0x0117 0x00, 0x80, 0x00, 0x00, 0x0118 0x00, 0x80, 0x00, 0x00, 0x0119 0x00, 0x80, 0x00, 0x00, 0x011A 0x00, 0x80, 0x00, 0x00, 0x011B 0x00, 0x80, 0x00, 0x00, 0x011C 0x00, 0x80, 0x00, 0x00, 0x011D 0x00, 0x80, 0x00, 0x00, 0x011E 0x00, 0x80, 0x00, 0x00, 0x011F 0x00, 0x80, 0x00, 0x00, 0x0120 0x00, 0x80, 0x00, 0x00, 0x0121 0x00, 0x80, 0x00, 0x00, 0x0122 0x00, 0x80, 0x00, 0x00, 0x0123 0x00, 0x80, 0x00, 0x00, 0x0124 0x00, 0x80, 0x00, 0x00, 0x0125 0x00, 0x80, 0x00, 0x00, 0x0126 0x00, 0x80, 0x00, 0x00, 0x0127 0x00, 0x80, 0x00, 0x00, 0x0128 0x00, 0x80, 0x00, 0x00, 0x0129 0x00, 0x80, 0x00, 0x00, 0x012A 0x00, 0x7F, 0xF0, 0x61, 0x012B 0x00, 0x7D, 0x6C, 0x21, 0x012C 0x00, 0x75, 0x7A, 0x64, 0x012D 0x00, 0x68, 0xDB, 0x84, 0x012E 0x00, 0x5A, 0x4C, 0x32, 0x012F 0x00, 0x4C, 0x3E, 0xA8, 0x0130 0x00, 0x40, 0x26, 0xE7, 0x0131 0x00, 0x2D, 0x5C, 0xBF, 0x0132 0x00, 0x20, 0x13, 0x74, 0x0133 0x00, 0x16, 0xAE, 0x60, 0x0134 0x00, 0x10, 0x09, 0xBA 0x013A HighPass_Comp PeakDBCompLUTAlgPG32post_gain 0x00, 0x80, 0x00, 0x00 Speaker: post gain 4 No 0x0140 LowPass_Comp PeakDBCompLUTAlgPG40decay 0x00, 0x00, 0x00, 0x04 REC_Auto: decay 4 Yes 0x0141 LowPass_Comp PeakDBCompLUTAlgPG40hold 0x00, 0x00, 0x00, 0x60 REC_Auto: hold 4 Yes

Dependent?

Rev. 0 | Page 23 of 40

UG-030 Evaluation Board User Guide

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x0142 LowPass_Comp PeakDBCompLUTAlgPG40tab 0x00, 0x05, 0x1A, 0x96, REC_Auto: 132 No 0x0143 0x00, 0x04, 0xB6, 0x9B, compressor 0x0144 0x00, 0x04, 0xAD, 0x54, curve points 0x0145 0x00, 0x05, 0x55, 0x55, 0x0146 0x00, 0x08, 0x55, 0xC1, 0x0147 0x00, 0x11, 0x6C, 0xA5, 0x0148 0x00, 0x25, 0x0E, 0xD2, 0x0149 0x00, 0x4D, 0x9C, 0x93, 0x014A 0x00, 0xA0, 0x10, 0xF5, 0x014B 0x01, 0x46, 0xB2, 0x33, 0x014C 0x02, 0x80, 0x9F, 0x0A, 0x014D 0x03, 0xF0, 0xCE, 0x62, 0x014E 0x05, 0x54, 0x59, 0xF2, 0x014F 0x05, 0xEF, 0xF5, 0xFC, 0x0150 0x05, 0xBA, 0x65, 0x98, 0x0151 0x05, 0x17, 0xAD, 0xEF, 0x0152 0x04, 0x3A, 0x77, 0xC5, 0x0153 0x03, 0x56, 0xDC, 0x88, 0x0154 0x02, 0x8B, 0x2A, 0xC5, 0x0155 0x01, 0xE7, 0x60, 0xA5, 0x0156 0x01, 0x67, 0x06, 0x39, 0x0157 0x01, 0x05, 0xD8, 0x28, 0x0158 0x00, 0xBE, 0x7E, 0xE5, 0x0159 0x00, 0x8A, 0x46, 0xF6, 0x015A 0x00, 0x64, 0x17, 0x5B, 0x015B 0x00, 0x48, 0x3E, 0xCA, 0x015C 0x00, 0x34, 0x06, 0x48, 0x015D 0x00, 0x25, 0x6A, 0x11, 0x015E 0x00, 0x1A, 0xE6, 0xE6, 0x015F 0x00, 0x13, 0x05, 0xC6, 0x0160 0x00, 0x0D, 0x73, 0x73, 0x0161 0x00, 0x09, 0x82, 0xE3, 0x0162 0x00, 0x06, 0xB9, 0xBA 0x01AC LowPass_Comp PeakDBCompLUTAlgPG40post_gain 0x00, 0x80, 0x00, 0x00 REC_Auto: post gain 4 No 0x0163 LowPass_Comp PeakDBCompLUTAlgPG41decay 0x00, 0x00, 0x00, 0x12 REC_Manual: decay 4 Yes 0x0164 LowPass_Comp PeakDBCompLUTAlgPG41hold 0x00, 0x00, 0x01, 0xE0 REC_Manual: hold 4 Yes

Dependent?

Rev. 0 | Page 24 of 40

Evaluation Board User Guide UG-030

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x0165 LowPass_Comp PeakDBCompLUTAlgPG41tab 0x00, 0x1D, 0xC7, 0xFA, REC_Manual: 132 No 0x0166 0x00, 0x1F, 0xA6, 0x78, compressor 0x0167 0x00, 0x24, 0xCD, 0xBF, curve points 0x0168 0x00, 0x2D, 0xB0, 0xDE, 0x0169 0x00, 0x3A, 0x4E, 0x7F, 0x016A 0x00, 0x47, 0xE3, 0x23, 0x016B 0x00, 0x67, 0x41, 0xE8, 0x016C 0x00, 0xA1, 0x64, 0x8B, 0x016D 0x00, 0xF3, 0x71, 0x72, 0x016E 0x01, 0x4B, 0x5C, 0x80, 0x016F 0x01, 0x96, 0x84, 0x19, 0x0170 0x01, 0xF9, 0x0D, 0x62, 0x0171 0x02, 0x8A, 0xA7, 0xCA, 0x0172 0x03, 0x24, 0x67, 0xA2, 0x0173 0x03, 0x9A, 0x7A, 0x83, 0x0174 0x03, 0xD1, 0x34, 0x62, 0x0175 0x03, 0xA2, 0xBD, 0x15, 0x0176 0x03, 0x3D, 0x07, 0x65, 0x0177 0x02, 0xC9, 0xE3, 0xC3, 0x0178 0x02, 0x4D, 0x52, 0x70, 0x0179 0x01, 0xCE, 0xBA, 0xD0, 0x017A 0x01, 0x5C, 0x48, 0xE1, 0x017B 0x00, 0xFF, 0x34, 0xC9, 0x017C 0x00, 0xB8, 0x8A, 0x49, 0x017D 0x00, 0x83, 0xA5, 0x3C, 0x017E 0x00, 0x5D, 0x40, 0x76, 0x017F 0x00, 0x42, 0x04, 0x69, 0x0180 0x00, 0x2E, 0xBC, 0x93, 0x0181 0x00, 0x21, 0x16, 0x45, 0x0182 0x00, 0x17, 0x65, 0x63, 0x0183 0x00, 0x10, 0x8B, 0x23, 0x0184 0x00, 0x0B, 0xB2, 0xB1, 0x0185 0x00, 0x08, 0x45, 0x91 0x01AD LowPass_Comp PeakDBCompLUTAlgPG41post_gain 0x00, 0x80, 0x00, 0x00

0x0186 LowPass_Comp PeakDBCompLUTAlgPG42decay 0x00, 0x00, 0x00, 0xB6 Speaker: decay 4 Yes 0x0187 LowPass_Comp PeakDBCompLUTAlgPG42hold 0x00, 0x00, 0x00, 0xF0 Speaker: hold 4 Yes

REC_Manual: post gain

4 No

Dependent?

Rev. 0 | Page 25 of 40

UG-030 Evaluation Board User Guide

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x0188 LowPass_Comp PeakDBCompLUTAlgPG42tab 0x00, 0x80, 0x00, 0x00, Speaker: 132 No 0x0189 0x00, 0x80, 0x00, 0x00, compressor 0x018A 0x00, 0x80, 0x00, 0x00, curve points 0x018B 0x00, 0x80, 0x00, 0x00, 0x018C 0x00, 0x80, 0x00, 0x00, 0x018D 0x00, 0x80, 0x00, 0x00, 0x018E 0x00, 0x80, 0x00, 0x00, 0x018F 0x00, 0x80, 0x00, 0x00, 0x0190 0x00, 0x80, 0x00, 0x00, 0x0191 0x00, 0x80, 0x00, 0x00, 0x0192 0x00, 0x80, 0x00, 0x00, 0x0193 0x00, 0x80, 0x00, 0x00, 0x0194 0x00, 0x80, 0x00, 0x00, 0x0195 0x00, 0x80, 0x00, 0x00, 0x0196 0x00, 0x80, 0x00, 0x00, 0x0197 0x00, 0x80, 0x00, 0x00, 0x0198 0x00, 0x80, 0x00, 0x00, 0x0199 0x00, 0x80, 0x00, 0x00, 0x019A 0x00, 0x80, 0x00, 0x00, 0x019B 0x00, 0x80, 0x00, 0x00, 0x019C 0x00, 0x80, 0x00, 0x00, 0x019D 0x00, 0x80, 0x00, 0x00, 0x019E 0x00, 0x7F, 0xF0, 0x61, 0x019F 0x00, 0x7D, 0x6C, 0x21, 0x01A0 0x00, 0x75, 0x7A, 0x64, 0x01A1 0x00, 0x68, 0xDB, 0x84, 0x01A2 0x00, 0x5A, 0x4C, 0x32, 0x01A3 0x00, 0x4C, 0x3E, 0xA8, 0x01A4 0x00, 0x40, 0x26, 0xE7, 0x01A5 0x00, 0x2D, 0x5C, 0xBF, 0x01A6 0x00, 0x20, 0x13, 0x74, 0x01A7 0x00, 0x16, 0xAE, 0x60, 0x01A8 0x00, 0x10, 0x09, 0xBA 0x01AE LowPass_Comp PeakDBCompLUTAlgPG42post_gain 0x00, 0x80, 0x00, 0x00 Speaker: post gain 4 No 0x01B4 compS stereomux1940ns50 0x00, 0x00, 0x00, 0x00

0x01B5 compS stereomux1940ns51 0x00, 0x80, 0x00, 0x00

On/off (burst write Address 0x01B4 and Address 0x01B5 together)

4 No

Dependent?

Rev. 0 | Page 26 of 40

Evaluation Board User Guide UG-030

SIGMASTUDIO TOOLS

CHANGING SAMPLE RATE

To change the sampling rate of the system, complete the following steps:

1. Select a new sample rate from the menu in the toolbar

(see Figure 50).

08356-050

Figure 50. Sample Rate Menu

2. Click the Set System Sampling Rate button (see Figure 51)

and click Ye s when prompted to confirm (see Figure 52).

Figure 51. Set System Sampling Rate Button

08356-051

The Capture window displays all communications between the PC and the control port of the ADAU1381 (see Figure 54). It is a useful tool for debugging and monitoring communications.

Figure 54. Capture Window

PARAMETER VISUALIZATION WINDOW

Click the IC 2: Params tab at the bottom of the Capture window to open the Parameter Visualization window (see Figure 55). This window shows all parameter RAM values for the project in realtime. It does not display the values of the parameters stored in addresses higher than 0x01FF (Decimal 511).

08356-055

Figure 52. Set System Sampling Rate… Confirmation Window

3. If target hardware is connected to the PC, click the Link-

Compile-Download button (see Figure 53) to download

the new parameters to the hardware.

8356-054

Figure 53. Link-Compile-Download Button

CAPTURE WINDOW

The Capture window is visible by default when SigmaStudio is executed for the first time. Its visibility can be toggled in the View menu.

08356-052

Figure 55. Parameter Visualization Window

08356-056

SEQUENCE WINDOW

Click << at the top right of the Capture window to open the Display Sequence Window (see Figure 56). In this window,

sequences of data writes can be created by dragging rows from the Capture window or by manually entering target addresses and data values.

08356-057

Figure 56. Display Sequence Window Button

Click the Download Mode to Hardware button to then initiate the sequence (see Figure 57).

Figure 57. Download Mode to Hardware Button

08356-058

Rev. 0 | Page 27 of 40

UG-030 Evaluation Board User Guide

Figure 58 shows an example sequence that changes the playback volume control (slewvol cell) gain value to −52 dB.

Figure 58. Example Sequence Changing the Playback Volume Control

EXPORT PARAMETER AND REGISTER SETTINGS

Click Export System Files in the toolbar to export the system files, such as parameter and register values (see Figure 59).

8356-060

Figure 59. Export System Files Button

08356-059

SIGMASTUDIO HELP FILE

SigmaStudio includes a Help file that further describes many of the algorithms and design functions described in this user guide. Access the Help file through the toolbar or by highlighting a block in the Schematic window and pressing F1, which brings you to the Help page for that block.

Rev. 0 | Page 28 of 40

Evaluation Board User Guide UG-030

FULL PARAMETER MAP

Table 12. Full Parameter Map with Default Values for fS = 48 kHz

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x0009 audioMode DCInpAlg1 0x00, 0x00, 0x00, 0x00

0x000A REC_Coeff DCInpAlg3 0x00, 0x00, 0x00, 0x00

0x000B GPIO DCInpAlg4 0x00, 0x00, 0x00, 0x00 Set GPIO output flag 4 No 0x0011 WNAlg WindNoiseAlg2F11 0x00, 0xE8, 0x5D, 0x19

0x0012 WNAlg WindNoiseAlg2F12 0xFF, 0x95, 0xA1, 0x9C

0x0013 WNAlg WindNoiseAlg2F20 0x00, 0x00, 0x80, 0x53

0x0014 WNAlg WindNoiseAlg2F21 0x00, 0x01, 0x00, 0xA6

0x0015 WNAlg WindNoiseAlg2F30 0x00, 0xE8, 0xD0, 0x3A

0x0016 WNAlg WindNoiseAlg2F31 0xFE, 0x2E, 0x5F, 0x8D

0x0017 WNAlg WindNoiseAlg2F42 0x00, 0x80, 0x00, 0x00

0x0018 WNAlg WindNoiseAlg2tc1 0x00, 0x00, 0x20, 0x00 Time constant 1 (ms) 4 Yes 0x0019 WNAlg WindNoiseAlg2tc11 0x00, 0x7F, 0xE0, 0x00 Time constant 1 (ms) 4 Yes 0x001A WNAlg WindNoiseAlg2tc2 0x00, 0x00, 0x20, 0x00 Time constant 2 (ms) 4 Yes 0x001B WNAlg WindNoiseAlg2tc22 0x00, 0x7F, 0xE0, 0x00 Time constant 2 (ms) 4 Yes 0x001C WNAlg WindNoiseAlg2Level1 0x00, 0x59, 0x99, 0x9A Level 1 4 No 0x001D WNAlg WindNoiseAlg2Level2 0x00, 0x08, 0x00, 0x00 Level 2 4 No 0x001E WNAlg WindNoiseAlg2attack 0x00, 0x00, 0x80, 0x00 Attack (ms) 4 Yes 0x001F WNAlg WindNoiseAlg2release 0x00, 0x00, 0x00, 0x40 Release (ms) 4 Yes 0x0020 WN stereomux1940ns40 0x00, 0x00, 0x00, 0x00

0x0021 WN stereomux1940ns41 0x00, 0x80, 0x00, 0x00

0x0023 Locked Cell param1 0x00, 0xCA, 0x9A, 0x58

0x0024 Locked Cell param2 0x0F, 0x35, 0x65, 0xA8

0x0025 Locked Cell param3 0x00, 0x7F, 0xAA, 0xE7

0x0026 Locked Cell param4 0x00, 0x08, 0x38, 0x65

0x0027 Locked Cell param5 0x00, 0x00, 0x00, 0x00

Set record/playback mode

Set Record Mode A or Record Mode B

Frequency and effect gain parameters

On/off (burst write Address 0x0020 and Address 0x0021 together)

Locked parameter (generated by SigmaStudio)

4 No

4 Yes

4 No

4 Yes

Dependent?

Rev. 0 | Page 29 of 40

UG-030 Evaluation Board User Guide

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x0028 Locked Cell param6 0x00, 0x7B, 0x1A, 0x7E

0x0029 MicDistance Gain1940AlgNS1 0x00, 0x80, 0x00, 0x00

0x002B SS stereomux1940ns30 0x00, 0x00, 0x00, 0x00

0x002C SS stereomux1940ns31 0x00, 0x80, 0x00, 0x00

0x002D EQFilter IndexSelMultBandAlg100b2 0x00, 0x7F, 0xAA, 0x50, Biquad F0, 0 20 Yes 0x002E 0xFF, 0x00, 0xAB, 0x60, 0x002F 0x00, 0x7F, 0xAA, 0x50, 0x0030 0xFF, 0x80, 0xAB, 0x20, 0x0031 0x00, 0xFF, 0x54, 0x5F 0x0032 EQFilter IndexSelMultBandAlg101b2 0x00, 0x7D, 0xBD, 0xAF, Biquad F0, 1 20 Yes 0x0033 0xFF, 0x02, 0x0A, 0x2E, 0x0034 0x00, 0x80, 0x42, 0x4A, 0x0035 0xFF, 0x82, 0x00, 0x07, 0x0036 0x00, 0xFD, 0xF5, 0xD2 0x0037 EQFilter IndexSelMultBandAlg102b2 0x00, 0x00, 0x00, 0x00, Biquad F0, 2 20 Yes 0x0038 0x00, 0x00, 0x00, 0x00, 0x0039 0x00, 0x80, 0x00, 0x00, 0x003A 0x00, 0x00, 0x00, 0x00, 0x003B 0x00, 0x00, 0x00, 0x00 0x003C EQFilter IndexSelMultBandAlg103b2 0x00, 0x00, 0x00, 0x00, Biquad F0, 3 20 Yes 0x003D 0x00, 0x00, 0x00, 0x00, 0x003E 0x00, 0x80, 0x00, 0x00, 0x003F 0x00, 0x00, 0x00, 0x00, 0x0040 0x00, 0x00, 0x00, 0x00 0x0041 EQFilter IndexSelMultBandAlg104b2 0x00, 0x71, 0xCB, 0x91, Biquad F0, 4 20 Yes 0x0042 0xFF, 0x2E, 0xCC, 0xE6, 0x0043 0x00, 0x81, 0xA0, 0xD2, 0x0044 0xFF, 0x8C, 0x93, 0x9D, 0x0045 0x00, 0xD1, 0x33, 0x1A 0x0046 EQFilter IndexSelMultBandAlg105b2 0x00, 0x00, 0x00, 0x00, Biquad F0, 5 20 Yes 0x0047 0x00, 0x00, 0x00, 0x00, 0x0048 0x00, 0x80, 0x00, 0x00, 0x0049 0x00, 0x00, 0x00, 0x00, 0x004A 0x00, 0x00, 0x00, 0x00 0x004B EQFilter IndexSelMultBandAlg110b2 0x00, 0x7E, 0xFB, 0x24, Biquad F1, 0 20 Yes 0x004C 0xFF, 0x02, 0x09, 0xB7, 0x004D 0x00, 0x7E, 0xFB, 0x24, 0x004E 0xFF, 0x82, 0x06, 0xEE, 0x004F 0x00, 0xFD, 0xF3, 0x80

Locked parameter (generated by SigmaStudio)

Gain setting related to the distance between microphones that enhances the perceived effect

On/off (burst write Address 0x002B and Address 0x002C together)

4 Yes

4 No

Dependent?

Rev. 0 | Page 30 of 40

Evaluation Board User Guide UG-030

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x0050 EQFilter IndexSelMultBandAlg111b2 0x00, 0x7D, 0xEB, 0x86, Biquad F1, 1 20 Yes 0x0051 0xFF, 0x02, 0x83, 0x95, 0x0052 0x00, 0x7F, 0xC2, 0xF7, 0x0053 0xFF, 0x82, 0x51, 0x83, 0x0054 0x00, 0xFD, 0x7C, 0x6B 0x0055 EQFilter IndexSelMultBandAlg112b2 0x00, 0x00, 0x00, 0x00, Biquad F1, 2 20 Yes

0x0056 0x00, 0x00, 0x00, 0x00, 0x0057 0x00, 0x80, 0x00, 0x00, 0x0058 0x00, 0x00, 0x00, 0x00, 0x0059 0x00, 0x00, 0x00, 0x00 0x005A EQFilter IndexSelMultBandAlg113b2 0x00, 0x00, 0x00, 0x00, Biquad F1, 3 20 Yes

0x005B 0x00, 0x00, 0x00, 0x00, 0x005C 0x00, 0x80, 0x00, 0x00, 0x005D 0x00, 0x00, 0x00, 0x00, 0x005E 0x00, 0x00, 0x00, 0x00 0x005F EQFilter IndexSelMultBandAlg114b2 0x00, 0x00, 0x00, 0x00, Biquad F1, 4 20 Yes

0x0060 0x00, 0x00, 0x00, 0x00, 0x0061 0x00, 0x80, 0x00, 0x00, 0x0062 0x00, 0x00, 0x00, 0x00, 0x0063 0x00, 0x00, 0x00, 0x00 0x0064 EQFilter IndexSelMultBandAlg115b2 0x00, 0x4A, 0x91, 0x00, Biquad F1, 5 20 Yes

0x0065 0x00, 0x95, 0x22, 0x00, 0x0066 0x00, 0x4A, 0x91, 0x00, 0x0067 0xFF, 0xD1, 0x47, 0xB1, 0x0068 0xFF, 0x84, 0x74, 0x4F 0x0069 EQFilter IndexSelMultBandAlg120b2 0x00, 0x00, 0x00, 0x00, Biquad F2, 0 20 Yes

0x006A 0x00, 0x00, 0x00, 0x00, 0x006B 0x00, 0x80, 0x00, 0x00, 0x006C 0x00, 0x00, 0x00, 0x00, 0x006D 0x00, 0x00, 0x00, 0x00 0x006E EQFilter IndexSelMultBandAlg121b2 0x00, 0x00, 0x00, 0x00, Biquad F2, 1 20 Yes

0x006F 0x00, 0x00, 0x00, 0x00, 0x0070 0x00, 0x80, 0x00, 0x00, 0x0071 0x00, 0x00, 0x00, 0x00, 0x0072 0x00, 0x00, 0x00, 0x00 0x0073 EQFilter IndexSelMultBandAlg122b2 0x00, 0x00, 0x00, 0x00, Biquad F2, 2 20 Yes

0x0074 0x00, 0x00, 0x00, 0x00, 0x0075 0x00, 0x80, 0x00, 0x00, 0x0076 0x00, 0x00, 0x00, 0x00, 0x0077 0x00, 0x00, 0x00, 0x00 0x0078 EQFilter IndexSelMultBandAlg123b2 0x00, 0x00, 0x00, 0x00, Biquad F2, 3 20 Yes

0x0079 0x00, 0x00, 0x00, 0x00, 0x007A 0x00, 0x80, 0x00, 0x00, 0x007B 0x00, 0x00, 0x00, 0x00, 0x007C 0x00, 0x00, 0x00, 0x00 0x007D EQFilter IndexSelMultBandAlg124b2 0x00, 0x00, 0x00, 0x00, Biquad F2, 4 20 Yes

0x007E 0x00, 0x00, 0x00, 0x00, 0x007F 0x00, 0x80, 0x00, 0x00, 0x0080 0x00, 0x00, 0x00, 0x00, 0x0081 0x00, 0x00, 0x00, 0x00 0x0082 EQFilter IndexSelMultBandAlg125b2 0x00, 0x00, 0x00, 0x00, Biquad F2, 5 20 Yes 0x0083 0x00, 0x00, 0x00, 0x00, 0x0084 0x00, 0x80, 0x00, 0x00, 0x0085 0x00, 0x00, 0x00, 0x00, 0x0086 0x00, 0x00, 0x00, 0x00

Rev. 0 | Page 31 of 40

Dependent?

UG-030 Evaluation Board User Guide

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x008E filtS stereomux1940ns10 0x00, 0x00, 0x00, 0x00

0x008F filtS stereomux1940ns11 0x00, 0x80, 0x00, 0x00

0x0090 ShiftLR Gain1940AlgNS4 0x00, 0x80, 0x00, 0x00

0x0091 ShiftLR Gain1940AlgNS5 0x00, 0x80, 0x00, 0x00

0x0092 Det_Range Gain1940AlgNS3 0x00, 0x20, 0x26, 0xF3

0x0093 Det_Range Gain1940AlgNS2 0x00, 0x20, 0x26, 0xF3

0x0094 CrossLo EQwSubDualDP42B1 0x00, 0x00, 0x10, 0xA7

0x0095 CrossLo EQwSubDualDP41B1 0x00, 0x00, 0x21, 0x4E

0x0096 CrossLo EQwSubDualDP40B1 0x00, 0x00, 0x10, 0xA7

0x0097 CrossLo EQwSubDualDP42A1 0x0F, 0x88, 0x07, 0xC9

0x0098 CrossLo EQwSubDualDP41A1 0x00, 0xF7, 0xB5, 0x9A

0x0099 CrossLo EQwSubDualDP42B2 0x00, 0x00, 0x10, 0xA7

0x009A CrossLo EQwSubDualDP41B2 0x00, 0x00, 0x21, 0x4E

0x009B CrossLo EQwSubDualDP40B2 0x00, 0x00, 0x10, 0xA7

0x009C CrossLo EQwSubDualDP42A2 0x0F, 0x88, 0x07, 0xC9

0x009D CrossLo EQwSubDualDP41A2 0x00, 0xF7, 0xB5, 0x9A

0x00A2 CrossHi EQwSubDualDP32B1 0x00, 0x7B, 0xEB, 0x74

0x00A3 CrossHi EQwSubDualDP31B1 0x0F, 0x08, 0x29, 0x18

0x00A4 CrossHi EQwSubDualDP30B1 0x00, 0x7B, 0xEB, 0x74

0x00A5 CrossHi EQwSubDualDP32A1 0x0F, 0x88, 0x07, 0xC9

0x00A6 CrossHi EQwSubDualDP31A1 0x00, 0xF7, 0xB5, 0x9A

0x00A7 CrossHi EQwSubDualDP32B2 0x00, 0x7B, 0xEB, 0x74

On/off (burst write Address 0x008E and Address 0x008F together)

Shift curve left/right; Address 0x0090 and Address 0x0091 must contain the same value

On/off (burst write Address 0x0092 and Address 0x0093 together)

Crossover LPF filter coefficient

Crossover HPF filter coefficient

4 No

4 Yes

Dependent?

Rev. 0 | Page 32 of 40

Evaluation Board User Guide UG-030

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x00A8 CrossHi EQwSubDualDP31B2 0x0F, 0x08, 0x29, 0x18

0x00A9 CrossHi EQwSubDualDP30B2 0x00, 0x7B, 0xEB, 0x74

0x00AA CrossHi EQwSubDualDP32A2 0x0F, 0x88, 0x07, 0xC9

0x00AB CrossHi EQwSubDualDP31A2 0x00, 0xF7, 0xB5, 0x9A

0x00B0 LoDet_Filter EQwSubDualDP62B1 0x00, 0x00, 0x24, 0xE2

0x00B1 LoDet_Filter EQwSubDualDP61B1 0x00, 0x00, 0x49, 0xC4

0x00B2 LoDet_Filter EQwSubDualDP60B1 0x00, 0x00, 0x24, 0xE2

0x00B3 LoDet_Filter EQwSubDualDP62A1 0x0F, 0x8B, 0xDA, 0xCC

0x00B4 LoDet_Filter EQwSubDualDP61A1 0x00, 0xF3, 0x91, 0xAC

0x00B5 LoDet_Filter EQwSubDualDP62B2 0x00, 0x00, 0x24, 0xE2

0x00B6 LoDet_Filter EQwSubDualDP61B2 0x00, 0x00, 0x49, 0xC4

0x00B7 LoDet_Filter EQwSubDualDP60B2 0x00, 0x00, 0x24, 0xE2

0x00B8 LoDet_Filter EQwSubDualDP62A2 0x0F, 0x8B, 0xDA, 0xCC

0x00B9 LoDet_Filter EQwSubDualDP61A2 0x00, 0xF3, 0x91, 0xAC

0x00BE HiDet_Filter EQwSubDualDP52B1 0x00, 0x7D, 0x44, 0xE0

0x00BF HiDet_Filter EQwSubDualDP51B1 0x0F, 0x05, 0x76, 0x40

0x00C0 HiDet_Filter EQwSubDualDP50B1 0x00, 0x7D, 0x44, 0xE0

0x00C1 HiDet_Filter EQwSubDualDP52A1 0x0F, 0x85, 0x67, 0x55

0x00C2 HiDet_Filter EQwSubDualDP51A1 0x00, 0xFA, 0x7A, 0xD5

0x00C3 HiDet_Filter EQwSubDualDP52B2 0x00, 0x7D, 0x44, 0xE0

Crossover HPF filter coefficient

Crossover LPF detection path filter coefficient

Crossover HPF detection path filter coefficient

4 Yes

Dependent?

Rev. 0 | Page 33 of 40

UG-030 Evaluation Board User Guide

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x00C4 HiDet_Filter EQwSubDualDP51B2 0x0F, 0x05, 0x76, 0x40

0x00C5 HiDet_Filter EQwSubDualDP50B2 0x00, 0x7D, 0x44, 0xE0

0x00C6 HiDet_Filter EQwSubDualDP52A2 0x0F, 0x85, 0x67, 0x55

0x00C7 HiDet_Filter EQwSubDualDP51A2 0x00, 0xFA, 0x7A, 0xD5

0x00CC HighPass_Comp PeakDBCompLUTAlgPG30decay 0x00, 0x00, 0x00, 0x04 REC_Auto: decay 4 Yes 0x00CD HighPass_Comp PeakDBCompLUTAlgPG30hold 0x00, 0x00, 0x00, 0x60 REC_Auto: hold 4 Yes 0x00CE HighPass_Comp PeakDBCompLUTAlgPG30tab 0x00, 0x05, 0x1A, 0x96, REC_Auto: compressor 132 No 0x00CF 0x00, 0x04, 0xB6, 0x9B, curve points 0x00D0 0x00, 0x04, 0xAD, 0x54, 0x00D1 0x00, 0x05, 0x55, 0x55, 0x00D2 0x00, 0x08, 0x55, 0xC1, 0x00D3 0x00, 0x11, 0x6C, 0xA5, 0x00D4 0x00, 0x25, 0x0E, 0xD2, 0x00D5 0x00, 0x4D, 0x9C, 0x93, 0x00D6 0x00, 0xA0, 0x10, 0xF5, 0x00D7 0x01, 0x46, 0xB2, 0x33, 0x00D8 0x02, 0x80, 0x9F, 0x0A, 0x00D9 0x03, 0xF0, 0xCE, 0x62, 0x00DA 0x05, 0x54, 0x59, 0xF2, 0x00DB 0x05, 0xEF, 0xF5, 0xFC, 0x00DC 0x05, 0xBA, 0x65, 0x98, 0x00DD 0x05, 0x17, 0xAD, 0xEF, 0x00DE 0x04, 0x3A, 0x77, 0xC5, 0x00DF 0x03, 0x56, 0xDC, 0x88, 0x00E0 0x02, 0x8B, 0x2A, 0xC5, 0x00E1 0x01, 0xE7, 0x60, 0xA5, 0x00E2 0x01, 0x67, 0x06, 0x39, 0x00E3 0x01, 0x05, 0xD8, 0x28, 0x00E4 0x00, 0xBE, 0x7E, 0xE5, 0x00E5 0x00, 0x8A, 0x46, 0xF6, 0x00E6 0x00, 0x64, 0x17, 0x5B, 0x00E7 0x00, 0x48, 0x3E, 0xCA, 0x00E8 0x00, 0x34, 0x06, 0x48, 0x00E9 0x00, 0x25, 0x6A, 0x11, 0x00EA 0x00, 0x1A, 0xE6, 0xE6, 0x00EB 0x00, 0x13, 0x05, 0xC6, 0x00EC 0x00, 0x0D, 0x73, 0x73, 0x00ED 0x00, 0x09, 0x82, 0xE3, 0x00EE 0x00, 0x06, 0xB9, 0xBA 0x00EF HighPass_Comp PeakDBCompLUTAlgPG31decay 0x00, 0x00, 0x00, 0x12 REC_Manual: decay 4 Yes 0x00F0 HighPass_Comp PeakDBCompLUTAlgPG31hold 0x00, 0x00, 0x01, 0xE0 REC_Manual: hold 4 Yes

Crossover HPF detection path filter coefficient

4 Yes

Dependent?

Rev. 0 | Page 34 of 40

Evaluation Board User Guide UG-030

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x00F1 HighPass_Comp PeakDBCompLUTAlgPG31tab 0x00, 0x1D, 0xC7, 0xFA, REC_Manual: 132 No 0x00F2 0x00, 0x1F, 0xA6, 0x78, compressor 0x00F3 0x00, 0x24, 0xCD, 0xBF, curve points 0x00F4 0x00, 0x2D, 0xB0, 0xDE, 0x00F5 0x00, 0x3A, 0x4E, 0x7F, 0x00F6 0x00, 0x47, 0xE3, 0x23, 0x00F7 0x00, 0x67, 0x41, 0xE8, 0x00F8 0x00, 0xA1, 0x64, 0x8B, 0x00F9 0x00, 0xF3, 0x71, 0x72, 0x00FA 0x01, 0x4B, 0x5C, 0x80, 0x00FB 0x01, 0x96, 0x84, 0x19, 0x00FC 0x01, 0xF9, 0x0D, 0x62, 0x00FD 0x02, 0x8A, 0xA7, 0xCA, 0x00FE 0x03, 0x24, 0x67, 0xA2, 0x00FF 0x03, 0x9A, 0x7A, 0x83, 0x0100 0x03, 0xD1, 0x34, 0x62, 0x0101 0x03, 0xA2, 0xBD, 0x15, 0x0102 0x03, 0x3D, 0x07, 0x65, 0x0103 0x02, 0xC9, 0xE3, 0xC3, 0x0104 0x02, 0x4D, 0x52, 0x70, 0x0105 0x01, 0xCE, 0xBA, 0xD0, 0x0106 0x01, 0x5C, 0x48, 0xE1, 0x0107 0x00, 0xFF, 0x34, 0xC9, 0x0108 0x00, 0xB8, 0x8A, 0x49, 0x0109 0x00, 0x83, 0xA5, 0x3C, 0x010A 0x00, 0x5D, 0x40, 0x76, 0x010B 0x00, 0x42, 0x04, 0x69, 0x010C 0x00, 0x2E, 0xBC, 0x93, 0x010D 0x00, 0x21, 0x16, 0x45, 0x010E 0x00, 0x17, 0x65, 0x63, 0x010F 0x00, 0x10, 0x8B, 0x23, 0x0110 0x00, 0x0B, 0xB2, 0xB1, 0x0111 0x00, 0x08, 0x45, 0x91 0x0112 HighPass_Comp PeakDBCompLUTAlgPG32decay 0x00, 0x00, 0x00, 0xB6 Speaker: decay 4 Yes 0x0113 HighPass_Comp PeakDBCompLUTAlgPG32hold 0x00, 0x00, 0x00, 0xF0 Speaker: hold 4 Yes

Dependent?

Rev. 0 | Page 35 of 40

UG-030 Evaluation Board User Guide

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x0114 HighPass_Comp PeakDBCompLUTAlgPG32tab 0x00, 0x80, 0x00, 0x00, Speaker: 132 No 0x0115 0x00, 0x80, 0x00, 0x00, compressor 0x0116 0x00, 0x80, 0x00, 0x00, curve points 0x0117 0x00, 0x80, 0x00, 0x00, 0x0118 0x00, 0x80, 0x00, 0x00, 0x0119 0x00, 0x80, 0x00, 0x00, 0x011A 0x00, 0x80, 0x00, 0x00, 0x011B 0x00, 0x80, 0x00, 0x00, 0x011C 0x00, 0x80, 0x00, 0x00, 0x011D 0x00, 0x80, 0x00, 0x00, 0x011E 0x00, 0x80, 0x00, 0x00, 0x011F 0x00, 0x80, 0x00, 0x00, 0x0120 0x00, 0x80, 0x00, 0x00, 0x0121 0x00, 0x80, 0x00, 0x00, 0x0122 0x00, 0x80, 0x00, 0x00, 0x0123 0x00, 0x80, 0x00, 0x00, 0x0124 0x00, 0x80, 0x00, 0x00, 0x0125 0x00, 0x80, 0x00, 0x00, 0x0126 0x00, 0x80, 0x00, 0x00, 0x0127 0x00, 0x80, 0x00, 0x00, 0x0128 0x00, 0x80, 0x00, 0x00, 0x0129 0x00, 0x80, 0x00, 0x00, 0x012A 0x00, 0x7F, 0xF0, 0x61, 0x012B 0x00, 0x7D, 0x6C, 0x21, 0x012C 0x00, 0x75, 0x7A, 0x64, 0x012D 0x00, 0x68, 0xDB, 0x84, 0x012E 0x00, 0x5A, 0x4C, 0x32, 0x012F 0x00, 0x4C, 0x3E, 0xA8, 0x0130 0x00, 0x40, 0x26, 0xE7, 0x0131 0x00, 0x2D, 0x5C, 0xBF, 0x0132 0x00, 0x20, 0x13, 0x74, 0x0133 0x00, 0x16, 0xAE, 0x60, 0x0134 0x00, 0x10, 0x09, 0xBA 0x0138 HighPass_Comp PeakDBCompLUTAlgPG30post_gain 0x00, 0x80, 0x00, 0x00 REC_Auto: post gain 4 No 0x0139 HighPass_Comp PeakDBCompLUTAlgPG31post_gain 0x00, 0x80, 0x00, 0x00 REC_Manual: post gain 4 No 0x013A HighPass_Comp PeakDBCompLUTAlgPG32post_gain 0x00, 0x80, 0x00, 0x00 Speaker: post gain 4 No 0x0140 LowPass_Comp PeakDBCompLUTAlgPG40decay 0x00, 0x00, 0x00, 0x04 REC_Auto: decay 4 Yes 0x0141 LowPass_Comp PeakDBCompLUTAlgPG40hold 0x00, 0x00, 0x00, 0x60 REC_Auto: hold 4 Yes

Dependent?

Rev. 0 | Page 36 of 40

Evaluation Board User Guide UG-030

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x0142 LowPass_Comp PeakDBCompLUTAlgPG40tab 0x00, 0x05, 0x1A, 0x96, REC_Auto: 132 No 0x0143 0x00, 0x04, 0xB6, 0x9B, compressor 0x0144 0x00, 0x04, 0xAD, 0x54, cu rve points 0x0145 0x00, 0x05, 0x55, 0x55, 0x0146 0x00, 0x08, 0x55, 0xC1, 0x0147 0x00, 0x11, 0x6C, 0xA5, 0x0148 0x00, 0x25, 0x0E, 0xD2, 0x0149 0x00, 0x4D, 0x9C, 0x93, 0x014A 0x00, 0xA0, 0x10, 0xF5, 0x014B 0x01, 0x46, 0xB2, 0x33, 0x014C 0x02, 0x80, 0x9F, 0x0A, 0x014D 0x03, 0xF0, 0xCE, 0x62, 0x014E 0x05, 0x54, 0x59, 0xF2, 0x014F 0x05, 0xEF, 0xF5, 0xFC, 0x0150 0x05, 0xBA, 0x65, 0x98, 0x0151 0x05, 0x17, 0xAD, 0xEF, 0x0152 0x04, 0x3A, 0x77, 0xC5, 0x0153 0x03, 0x56, 0xDC, 0x88, 0x0154 0x02, 0x8B, 0x2A, 0xC5, 0x0155 0x01, 0xE7, 0x60, 0xA5, 0x0156 0x01, 0x67, 0x06, 0x39, 0x0157 0x01, 0x05, 0xD8, 0x28, 0x0158 0x00, 0xBE, 0x7E, 0xE5, 0x0159 0x00, 0x8A, 0x46, 0xF6, 0x015A 0x00, 0x64, 0x17, 0x5B, 0x015B 0x00, 0x48, 0x3E, 0xCA, 0x015C 0x00, 0x34, 0x06, 0x48, 0x015D 0x00, 0x25, 0x6A, 0x11, 0x015E 0x00, 0x1A, 0xE6, 0xE6, 0x015F 0x00, 0x13, 0x05, 0xC6, 0x0160 0x00, 0x0D, 0x73, 0x73, 0x0161 0x00, 0x09, 0x82, 0xE3, 0x0162 0x00, 0x06, 0xB9, 0xBA 0x0163 LowPass_Comp PeakDBCompLUTAlgPG41decay 0x00, 0x00, 0x00, 0x12 REC_Manual: decay 4 Yes 0x0164 LowPass_Comp PeakDBCompLUTAlgPG41hold 0x00, 0x00, 0x01, 0xE0 REC_Manual: hold 4 Yes

Dependent?

Rev. 0 | Page 37 of 40

UG-030 Evaluation Board User Guide

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x0165 LowPass_Comp PeakDBCompLUTAlgPG41tab 0x00, 0x1D, 0xC7, 0xFA, REC_Manual: 132 No 0x0166 0x00, 0x1F, 0xA6, 0x78, compressor 0x0167 0x00, 0x24, 0xCD, 0xBF, curve points 0x0168 0x00, 0x2D, 0xB0, 0xDE, 0x0169 0x00, 0x3A, 0x4E, 0x7F, 0x016A 0x00, 0x47, 0xE3, 0x23, 0x016B 0x00, 0x67, 0x41, 0xE8, 0x016C 0x00, 0xA1, 0x64, 0x8B, 0x016D 0x00, 0xF3, 0x71, 0x72, 0x016E 0x01, 0x4B, 0x5C, 0x80, 0x016F 0x01, 0x96, 0x84, 0x19, 0x0170 0x01, 0xF9, 0x0D, 0x62, 0x0171 0x02, 0x8A, 0xA7, 0xCA, 0x0172 0x03, 0x24, 0x67, 0xA2, 0x0173 0x03, 0x9A, 0x7A, 0x83, 0x0174 0x03, 0xD1, 0x34, 0x62, 0x0175 0x03, 0xA2, 0xBD, 0x15, 0x0176 0x03, 0x3D, 0x07, 0x65, 0x0177 0x02, 0xC9, 0xE3, 0xC3, 0x0178 0x02, 0x4D, 0x52, 0x70, 0x0179 0x01, 0xCE, 0xBA, 0xD0, 0x017A 0x01, 0x5C, 0x48, 0xE1, 0x017B 0x00, 0xFF, 0x34, 0xC9, 0x017C 0x00, 0xB8, 0x8A, 0x49, 0x017D 0x00, 0x83, 0xA5, 0x3C, 0x017E 0x00, 0x5D, 0x40, 0x76, 0x017F 0x00, 0x42, 0x04, 0x69, 0x0180 0x00, 0x2E, 0xBC, 0x93, 0x0181 0x00, 0x21, 0x16, 0x45, 0x0182 0x00, 0x17, 0x65, 0x63, 0x0183 0x00, 0x10, 0x8B, 0x23, 0x0184 0x00, 0x0B, 0xB2, 0xB1, 0x0185 0x00, 0x08, 0x45, 0x91 0x0186 LowPass_Comp PeakDBCompLUTAlgPG42decay 0x00, 0x00, 0x00, 0xB6 Speaker: decay 4 Yes 0x0187 LowPass_Comp PeakDBCompLUTAlgPG42hold 0x00, 0x00, 0x00, 0xF0 Speaker: hold 4 Yes

Dependent?

Rev. 0 | Page 38 of 40

Evaluation Board User Guide UG-030

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x0188 LowPass_Comp PeakDBCompLUTAlgPG42tab 0x00, 0x80, 0x00, 0x00, Speaker: 132 No 0x0189 0x00, 0x80, 0x00, 0x00, compressor 0x018A 0x00, 0x80, 0x00, 0x00, curve points 0x018B 0x00, 0x80, 0x00, 0x00, 0x018C 0x00, 0x80, 0x00, 0x00, 0x018D 0x00, 0x80, 0x00, 0x00, 0x018E 0x00, 0x80, 0x00, 0x00, 0x018F 0x00, 0x80, 0x00, 0x00, 0x0190 0x00, 0x80, 0x00, 0x00, 0x0191 0x00, 0x80, 0x00, 0x00, 0x0192 0x00, 0x80, 0x00, 0x00, 0x0193 0x00, 0x80, 0x00, 0x00, 0x0194 0x00, 0x80, 0x00, 0x00, 0x0195 0x00, 0x80, 0x00, 0x00, 0x0196 0x00, 0x80, 0x00, 0x00, 0x0197 0x00, 0x80, 0x00, 0x00, 0x0198 0x00, 0x80, 0x00, 0x00, 0x0199 0x00, 0x80, 0x00, 0x00, 0x019A 0x00, 0x80, 0x00, 0x00, 0x019B 0x00, 0x80, 0x00, 0x00, 0x019C 0x00, 0x80, 0x00, 0x00, 0x019D 0x00, 0x80, 0x00, 0x00, 0x019E 0x00, 0x7F, 0xF0, 0x61, 0x019F 0x00, 0x7D, 0x6C, 0x21, 0x01A0 0x00, 0x75, 0x7A, 0x64, 0x01A1 0x00, 0x68, 0xDB, 0x84, 0x01A2 0x00, 0x5A, 0x4C, 0x32, 0x01A3 0x00, 0x4C, 0x3E, 0xA8, 0x01A4 0x00, 0x40, 0x26, 0xE7, 0x01A5 0x00, 0x2D, 0x5C, 0xBF, 0x01A6 0x00, 0x20, 0x13, 0x74, 0x01A7 0x00, 0x16, 0xAE, 0x60, 0x01A8 0x00, 0x10, 0x09, 0xBA 0x01AC LowPass_Comp PeakDBCompLUTAlgPG40post_gain 0x00, 0x80, 0x00, 0x00 REC_Auto: post gain 4 No 0x01AD LowPass_Comp PeakDBCompLUTAlgPG41post_gain 0x00, 0x80, 0x00, 0x00 REC_Manual: post gain 4 No 0x01AE LowPass_Comp PeakDBCompLUTAlgPG42post_gain 0x00, 0x80, 0x00, 0x00 Speaker: post gain 4 No 0x01B4 compS stereomux1940ns50 0x00, 0x00, 0x00, 0x00

0x01B5 compS stereomux1940ns51 0x00, 0x80, 0x00, 0x00

On/off (burst write Address 0x01B4 and Address 0x01B5 together)

4 No

Dependent?

Rev. 0 | Page 39 of 40

UG-030 Evaluation Board User Guide

Sample Rate

Address Cell Name Parameter Name Default Value Function Bytes

0x01B6 dmute MuteSWLinSlewAlg1mute 0x00, 0x00, 0x00, 0x00

Mute digital (record)

4 No

output

0x01B7 dmute MuteSWLinSlewAlg1step 0x00, 0x00, 0x40, 0x00

Slew rate for

4 Yes

digital mute

0x01B8 slewvol GainS200AlgGrow1gain_target 0x00, 0x80, 0x00, 0x00

Analog output

4 No

volume control

0x01BA amute MuteSWLinSlewAlg2mute 0x00, 0x00, 0x00, 0x00

Mute analog

4 No

(playback) output

0x01BB amute MuteSWLinSlewAlg2step 0x00, 0x00, 0x40, 0x00

Slew rate for

4 Yes

analog mute 0x07FA slewvol GainS200AlgGrow1alpha 0x00, 0x7F, 0xF2, 0x59, Slew rate for analog 8 Yes 0x07FB 0x00, 0x00, 0x0D, 0xA7 volume control

Dependent?

Evaluation boards are only intended for device evaluation and not for production purposes. Evaluation boards are supplied “as is” and without warranties of any kind, express, implied, or statutory including, but not limited to, any implied warranty of merchantability or fitness for a particular purpose. No license is granted by implication or otherwise under any patents or other intellectual property by application or use of evaluation boards. Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Analog Devices reserves the right to change devices or specifications at any time without notice. Trademarks and registered trademarks are the property of their respective owners. Evaluation boards are not authorized to be used in life support devices or systems.

Rev. 0 | Page 40 of 40

Datasheet UG-030 Datasheet (ANALOG DEVICES)

Specifications and Main Features

Frequently Asked Questions

User Manual

INTRODUCTION

DIGITAL CAMERA SYSTEM OVERVIEW

SOUND ENGINE SIGNAL FLOW BLOCK DIAGRAM

AUDIO PROCESSING MODES

Record Mode

Playback Mode

TABLE OF CONTENTS

REVISION HISTORY

SIGMASTUDIO INTERFACE TO THE SOUND ENGINE

SIGMASTUDIO INTERFACE

ADAU1381 POWER-UP SEQUENCE

CONNECTING THE ADAU1381 EVALUATION BOARD TO THE COMPUTER

EDITING THE SIGNAL FLOW

CONTROLLING PARAMETERS IN REAL TIME

OUTPUT FILE GENERATION

SOUND ENGINE SIGNAL PROCESSING FLOW

DESCRIPTION

INPUTS

OUTPUTS AND MUTE

MODE SELECTION

MAIN PAGE

Controls

Parameters

WIND NOISE REDUCTION PAGE

Description

Routing and Bypass

Controls

Parameters

ENHANCED STEREO CAPTURE PAGE

Description

Routing and Bypass

Controls

Parameters

EQUALIZATION FILTERS PAGE

Description

Routing and Bypass

Controls

Parameters

DUAL-BAND COMPRESSION PAGE

Description

Available Curves

Detection Range Shift

Curve Shift

Routing and Bypass

Controls

Parameters

SIGMASTUDIO TOOLS

CHANGING SAMPLE RATE

PARAMETER VISUALIZATION WINDOW

CAPTURE WINDOW

SEQUENCE WINDOW

EXPORT PARAMETER AND REGISTER SETTINGS

SIGMASTUDIO HELP FILE

FULL PARAMETER MAP