Edelweiss EQ1-DYN User Manual

digital audio

weiss engineering ltd.
Florastrasse 42, 8610 Uster, Switzerland

) [phone] [phone]
8 http://www.weiss.ch / http://www.weiss-highend.com

GAMBIT

EQ1-DYN

OPERATING MANUAL

Software Version: 0S: 1.1

OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-DYN CONTENTS

CONTENTS

CONTENTS _______________________________________________________________________2
FRONT PANEL ____________________________________________________________________3

Front Panel Groups __________________________________________________________________________ 4

INTRODUCTION __________________________________________________________________5

Processing _________________________________________________________________________________ 5
Display____________________________________________________________________________________ 5
Snapshots _________________________________________________________________________________ 5
Remote Control_____________________________________________________________________________ 5

OPERATION ______________________________________________________________________6

Status Display_______________________________________________________________________________ 6
Band Parameters ____________________________________________________________________________ 8
Controls __________________________________________________________________________________ 9
M/S Mode ________________________________________________________________________________ 11
Snapshots ________________________________________________________________________________ 12
Dither ___________________________________________________________________________________ 14
Display Resolution __________________________________________________________________________ 14
LCD Contrast _____________________________________________________________________________ 14
EQ Bypass ________________________________________________________________________________ 14
Remote Control____________________________________________________________________________ 15
Software Information________________________________________________________________________ 15
Self Test__________________________________________________________________________________ 15

TECHNICAL DATA________________________________________________________________16

AES/EBU Input_____________________________________________________________________________ 16
AES/EBU Output ___________________________________________________________________________ 16
Power ___________________________________________________________________________________ 19
Overload _________________________________________________________________________________ 19
Filters ___________________________________________________________________________________ 19
Parameter Table ___________________________________________________________________________ 20
Dither ___________________________________________________________________________________ 22
Remote Control Protocol_____________________________________________________________________ 23

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OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-DYN FRONT PANEL

•

Ž

Œ

FRONT PANEL

•

Graph 1: Front Panel Elements

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OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-DYN FRONT PANEL

Front Panel Groups

The front panel of the EQ1 offers several control and display features. These can be grouped according to
Graph 1: Front Panel Elements:

Π- Band Parameters

• - Menu
Ž - Controls

• - Snapshots

This manual will explain how to operate the EQ1 according to these groups.

The Bypass key is discussed separately in chapter EQ Bypass (p. 14). The “gain/ data” encoder appears
throughout the rest of this manual and is therefore not explained separately.

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OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-DYN INTRODUCTION

INTRODUCTION

Congratulations on purchasing the Weiss Gambit Series EQ1-DYN Digital Equalizer !

The EQ1-DYN is a dynamically controlled equal­izer. It has four dynamic bands and three linear
bands per channel, each operating at 88.2 or 96
kHz, depending on input sampling frequency
(88.2kHz processing with 44.1kHz and 88.2kHz
inputs, 96kHz processing with 48kHz and 96kHz
inputs).

A dynamic band operates similar to a compressor,
with two additional features:

1. The band is sensitive to signal level in its fre­quency range only. There is no cross­modulation from other bands. Some com­pressors (like the Weiss 102 Compressor)
also have this feature, called “sidechain EQ”.
The exact centre frequency and bandwidth of
the sidechain is dependent on the centre fre­quency and Q setting of the dynamic band.

2. The gain is only applied to certain frequen­cies, and not across the whole audio band.
No compressor has this feature.

In addition to the dynamic operation of the bands,
the overall dynamic frequency response is dis­played in real-time in the LC display. This is nec­essary for the proper setup of the parameters of
the dynamic band, and it gives direct visual feed­back on the operation of the EQ1-DYN, similar
to gain reduction meters on compressors.

Features of the EQ1-DYN include:

Display

Double logarithmic graph of the magnitude

function of the equalizer calculated in real
time

Status display showing sampling frequency,

channel status data handling, current work­space and snapshot number and a resetable
peak-hold and over-hold per channel

Band display (activated by touch) showing

boost, Q/ slope and frequency settings for
each band

Two over-LED’s with settable number of

consecutive over-samples which cause an
“over” display combined with an over-hold
function

Snapshots

3 x 128 non-volatile snapshots where all

parameters are stored

A-B workspaces for quick comparison be-

tween two settings

Remote Control

Supports MIDI, RS-232 and RS-422 proto-

cols

Standard MIDI Continuous Controllers for

Processing

Four dynamic peaking filters with threshold

adjustment.

24bit digital input, internal 40bit floating-

point arithmetic, dithered output for 16bit,
20bit or 24bit wordlengths.

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parameter remote control (including overall
gain)

Snapshot automatization with MIDI Pro-

gram Change Commands

MIDI Dump of Snapshots

OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-DYN OPERATION

OPERATION

The following explanations assume that the equalizer is in power-up mode, i.e. no menu is active.
If a menu is active, press the “menu” key repeatedly until the status display appears.

Status Display

Key A
Key B

Key C

Key C
Key D

Graph 2: Status Display

The status display consists of four groups display­ing audio signal properties and information about
the current state of the EQ1. The groups are
situated adjacent to the softkeys to the right of
the LCD (Graph 2).

Channel Status Group

Situated adjacent to key A, displays the following
information:

sampling frequency in kHz: “44.1”, “ 48”,

“88.2” or “96”

pre-emphasis: “E” appears if pre-emphasis

is set (empty if not used)

input output channel status data format:

“C” for consumer and “P” for professional

To change the output channel status data format,
press key A and select format type or loop
through.

Peak Group

Use this value to set the optimal gain for a specific
session. Reset it for every session.

Over-Hold
Whenever an over is encountered, the boxes to

the side of the peak-hold values are marked.
The functions of the over-LED’s and the over-

hold both depend on the NUMBER OF

CONSECUTIVE OVER-SAMPLES setting. To adjust this

setting, press key B once. Use the “gain/ data”
encoder to change the value, then press “menu”
to return to the status display.

This setting defines the number of consecutive
over-samples needed for an over-indication. To
indicate every over-sample, enter 1. If another
value is entered, you are still able to detect a sin­gle over-sample with the peak-hold function.

Over-samples are defined as exceeding the
24bit integer range. A full scale signal
(0dBFS) will not be treated as over. A signal
that triggered an over in a previous pro­cessor in the audio chain will therefore not
trigger an over in the EQ1 (unless boosted).

Remote Group

Situated adjacent to key C, displays remote con­trol protocol (“MIDI”, “RS 232” or “RS 422”),
channel (“1” - “16”) and status (on/ off, displayed
with check box).

Situated adjacent to key B, this group contains a
peak-hold and an over-hold for each channel. To

For remote control set-up see chapter Remote
Control.

reset these values press key B twice.
Peak-Hold

The numeric peak value is measured relative to
0dBFS, where 0dB equals digital full scale.

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OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-DYN OPERATION

Snapshot Display

Bottom line in the status display. Refer to this for
information on current workspace and snapshot.
There are two workspaces (“A” and “B”) for
quick comparison of two equalizer settings. A
workspace can be stored to a snapshot for later
use.

The number of the last recalled snapshot will be
displayed. If you change any value after the recall,
the “ ” will change to “ ” to symbolize that the
workspace is not equal to the displayed snapshot
anymore.

For snapshot handling see chapter Snapshots.

Dither Icon

The dither icon is situated right next to key D
(see Graph 2). If dither is off, the icon contains
the number “24“, the word length of the output
signal in bits. Turning dither on will produce ar­rows above and below the new word length
number (“16“ or “20“). Additionally, if auto­blacking is enabled, the bottom right corner of the
icon is inverted.

For details on dither refer to chapter Dither.

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OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-DYN OPERATION

Band Parameters

What Is A Band?

The EQ1 has seven independent bands per chan­nel. A band has the following parameters which
can be adjusted separately for each band:

1. Mode

2. Boost

3. Q/ Slope / Shape

4. Frequency

Mode specifies the filter type. There are five filter
types (low and high cut, low and high shelving and
peaking) and a bypass mode. Each band has its
own five-LED chain to indicate its active mode
(see

Graph 3).

To activate a band and see its detailed parameter
values, touch any knob in a band (see Graph 1,

Œ

). The active band’s parameter values will be
shown in the band display (see Graph 4) replacing
the status display, and its LED chain will light up,
showing you where to adjust the parameter val­ues.

Graph 4: Band Display

Depending on the setting of “Auto Switch­back From Band To Status Display”, this
display will hold or disappear again after
having released the knob.

High Shelving

Low Shelving

Peaking

High Cut

Low Cut

To change the “Auto Switchback From Band To
Status Display” setting, press the “menu” key,
then select “Controls” with key B. The value can
now be changed with key B.

Range

The parameters’ range is independent of the
mode and is listed at page 20.

Graph 3: Mode LEDs

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OPERATING INSTRUCTIONS FOR GAMBIT EQUALIZER EQ1-DYN OPERATION

Adjusting Band Parameters

To adjust boost, Q/ slope or frequency simply
turn the corresponding knob (see Table 1).

“boost” “Q/ slope” “frequency”

Peaking-Filter
Dynamic-Peaking
Shelve-Filter
Cut-Filter

set boost set Q set centre frequency

set boost set Q / threshold set centre frequency

set boost set shape set 3dB frequency

- set slope set -3dB frequency

To adjust the mode, activate the band. Press a
key (Table 2) to change the mode value. The ac­tive mode is highlighted and the adjacent softkey
is lit.

Key A Key B Key C Key D

Mode

toggle lo- / hi­shelve

toggle peaking
/dynamic peaking

Controls

See Graph 1: Front Panel Elements, Ž.

Table 1

CH1 & CH2

These two keys patch the band controls to the
according channels. The band controls can either
be separate for each channel or ganged together.

toggle lo- / hi-cut bypass

If the band bypass is on (highlighted), its filter
settings (type and parameters) are saved but have
no effect on the audio signal. Turning bypass off
will restore the previous band settings.

Bypassing all bands is sonically equivalent to
using the overall bypass (refer to EQ Bypass)
if the gain is set to 0.0dB.

Only bands 1, 2, 5, and 6 can be set into dynamic
mode. This allows for linear gain adjustment be­fore and after a dynamic band.

Table 2

The key is lit for the active channel.
To copy CH1 settings to CH2 or vice versa, press

the “copy” key and select an option (Graph 6).

Ganged

When this key is lit, the band controls act for both
channels simultaneously. Switching channels while
the “ganged” key is lit will activate CH1 and CH2
settings alternately for both channels.

If ganged is off, the controls will affect the active
channel only.

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