DP
Digital Audio Processor
Innovative Automatic Resonance Control creates optimal sound fields
based on the venue’s acoustic response
K1
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TOA's DP-K1 automatically curbs reson
intelligibility and sound quality in acou
TOA again leads the way in ensuring optimal
commercial sound audio, with an easy-to-operate
digital audio processor outfitted with an 8-input/
8-output capability, an ARC that incorporates the
latest technology, and such features as gain,
equalizer, crossover, compressor, noise gate,
matrix and delay. The DP-K1 is equipped with
TOA's new Automatic Resonance Control (ARC)
function, which automatically measures and
processes the acoustic resonance
characteristics of complex environments and
provides compensatory parameter settings.
This latest addition to the TOA line of commercial
sound digital audio processors makes it easy to
bring optimal sound enhancement even to such
as houses of worship, sports facilities, convention
center, airports and many other venues.
Operational versatility for wide-ranging
applications.
Working in tandem with the unit's 8-bus matrix capability,
the DP-K1's modular design allows up to 8 line/mic inputs
and 8 line outputs, as well as flexible contact/closure
remote control. The ARC function, along with gain,
equalizer, crossover, noise gate, matrix and delay
functions, can be applied to each of the 8 inputs and
outputs. To ensure extra-precise versatility, six separate
modules are available
for both input and
output, plus one for
remote control
operation.
Examples of signal flow.
Users can choose from among
16 different combinations.
DP-K1
Automatic parameter adjustments ensure
clear sound, simply and easily.
After obtaining measurements of the acoustic
characteristics of the venue, the Automatic Resonance
Control function automatically measures frequency
characteristics of the broadcast area and finds resonant
frequencies. It then creates an equalizer that curbs
resonances, to improve speech intelligibility and sound
quality. Up to now, acoustic compensation has been
manually carried out and time-consuming, but TOA's
proprietary ARC technology allows the task to be
accomplished with
easy operation
and in a short
time.
Conceptual Image
Quick and easy setting of parameters
via a PC.
Settings for signal flow, matrix, digital signal processing
and ARC operation can be performed easily on a PC via
Ethernet. Up to eight parameter-setting patterns set for
different purposes can be stored in memory.
Rack mounting available in three sizes.
ances and improves speech
stically challenging venues.
(1) Place the microphone in the broadcast area whose resonance
characteristics you want to measure.
Room 8
Room 7
Room 6
Room 5
Room 4
Room 3
Room 2
Room 1
DP-K1
Mixer
* Measurements can be carried out with a microphone you routinely use.
It is not necessary to employ a microphone specially dedicated to performing measurements.
(It is not necessary to leave the microphone within the measuring area after the measurement is complete.)
* One DP-K1 unit is capable of making acoustic adjustments for up to 8 broadcast areas.
(3) The acoustic characteristics of the broadcast area are automatically
measured.
(2) Press the measurement button on the PC screen.
(4) The ARC finds the acoustic resonant frequencies in the broadcast area
and automatically creates an ARC filter that ensures vocal and sound clarity.
Modules
Modular design allows you to configure the most costeffective design for each application.
TOA offers a range
of modules to suit
a variety of input and
output requirements.
System Example
Wireless
Microphones
Wired
Microphones
CD Player
Cassette Deck
Tu ner
Mixer
Cassette Deck
(For recording)
DP-K1
PC
In addition, by moving the microphone and repeating the above steps at several different locations, finer
acoustic compensations are possible. For each broadcast area, measurements can be made at up to 8
measurement points.
DP-K1 Rear
Network
Power Amplifier
Power Amplifier
Power Amplifier
Power Amplifier
Power Amplifier
Room 1
Room 2
Room 3
Room 4
Room 5
Speakers
Speakers
Speakers
Speakers
Speakers
SPECIFICATIONS
Power Source AC mains, 50/60Hz
Power Consumption 40W
Frequency Response 20 – 20,000Hz, ±1dB (+4dB* Input)
Input Max. 8 channels, modular construction (modules optional)
Output Max. 8 channels, modular construction (modules optional)
IO Configuration*
Signal Processing
Automatic Resonance Control Function
Level Control –∞ to +12dB (0.5dB steps), with polarity selector
Equalizer/Filter Parametric equalizer: 20 – 20,000Hz, ±12dB, Q: 0.267 – 69.249
Compressor Threshold: –16 to +24dB* (1dB steps)
Noise gate Threshold: –∞ to –26dB* (1dB steps)
Delay Delay time: 0 – 682.0ms (0.021ms steps)
Matrix 8 × 8
Preset memory 8
Auxiliary Function Key lock function
Setting Software OS: Windows*3 2000/XP
Front Panel Section Preset memory recall knob: 1
Module Slot (Rear Panel) Input module slot: 4
Operating Temperature +5°C to +40°C
Finish Panel: Aluminum, hair-line finish, black
Dimensions 482.6 (W) × 132.6 (H) × 320 (D)mm (excluding projection)
Weight 7.4kg
Accessory Power cord (2m) × 1, Rack mounting bracket (preinstalled on the unit) × 2, Rack mounting screw × 4,
Option INPUT MODULES D-921E; 2 inputs, mic/line changeable, Removable terminal block connectors, 24 bit A/D converters
REMOTE CONTROL MODULES D-981; 8 inputs for activation of memory, volume up/down, channel on/off and stereo input selection
*0 dB =0.775 V
2
*
It is not possible to use 8-IN/4-OUT setting.
3
*
Windows is a trademark of Microsoft Corporation.
Note: When installing the unit, never block the intake vents provided in the unit's bottom near the rear.
2
2-IN/4-OUT, 2-IN/8-OUT, 4-IN/4-OUT, 4-IN/8-OUT, 6-IN/4-OUT, 6-IN/8-OUT, 8-IN/8-OUT
Parametric equalizer: 20 – 20,000Hz, ±12dB, Q: 0.267 – 69.249
Filtering: High-pass filter: 20 – 20,000Hz, 6dB/oct, 12dB/oct
Low-pass filter: 20 – 20,000Hz, 6dB/oct, 12dB/oct
Notch filter: 20 – 20,000Hz, Q: 8.651 – 69.249
All-pass filter: 20 – 20,000Hz, Q : 0.267 –– 69.249
High shelving filter: 6 – 20kHz, ±12dB
Low shelving filter: 20 – 500Hz , ±12dB
Horn equalizer: 20kHz, 0 to +18dB,(0.5dB steps)
Crossover filter: 20 – 20,000Hz, 6dB/oct, 12dB/oct, 18dB/oct, 24dB/oct
Ratio: 1 : 1, 2 : 1, 3 :1, 4 : 1, 8 : 1, 12 : 1, 20 : 1, ∞ : 1
Attack time: 0.02 – 100ms
Release time: 10ms – 5s
Attack time: 0.1 – 100ms
Release time: 20ms – 5s
Level control: –∞ to 0dB (1dB steps), with polarity selector
Control system: 10 BASE-T/100 BASE-TX, Auto-nagotiation, RJ45 connector
Input indicator: Green LED
Output indicator: Green LED
Output module slot: 2
Remote control module slot: 1
Others: Pre-coated steel plate, black, 30% gloss
Blank panel (preinstalled on the unit) × 8, Module mounting screw (spare) × 4, CD (software) × 1
D-921F; 2 inputs, mic/line changeable, XLR-F connectors, 24 bit A/D converters
D-922E; 2 inputs, mic/line changeable, Removable terminal block connectors, 20 bit A/D converters
D-922F; 2 inputs, mic/line changeable, XLR-F connectors, 20 bit A/D converters
D-936R; 4 stereo inputs, unbalanced line level, RCA pin jack connectors, 24 bit A/D converters
D-923AE; 2 digital inputs, AES/EBU format, XLR-F connectors
D-937SP; 2 digital inputs, S/PDIF format, optical and coaxial (RCA pin jack) connectors
OUTPUT MODULES D-971E; 4 outputs, balanced line level, Removable terminal block connectors, 24 bit A/D converters
D-971M; 4 outputs, balanced line level, XLR-M connectors, 24 bit A/D converters
D-971R; 4 outputs, stereo or mono sum line level, RCA pin jack connectors, 24 bit A/D converters
D-972AE; 4 digital outputs, AES/EBU format, XLR-M connectors
D-961SP; 4 digital outputs, S/PDIF format, optical and coaxial (RCA pin jack) connectors
8 outputs of memory, channel on/off, contact input status and stereo input selection
Removable terminal block connectors
D-983; 24 inputs for activation of memory, volume up/down, channel on/off and stereo input selection
16 outputs of memory, channel on/off, contact input status and stereo input selection
RJ45 connectors
TOA Corporation
www.toa.jp
Specifications are subject to change without notice.
Printed in Japan (0607) 833-52-358-1A u
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