2023 Guangzhou DSPPA Audio Co., Ltd.
2023 Guangzhou DSPPA Audio Co., Ltd.

16 Channel Digital Audio Processor with Echo Suppressor D6644H

  • 24 bit/ 48KHz sampling frequency, high-performance A / D, D / A converter and 32-bit floating-point DSP processor, full-function matrix mixing function to provide users with excellent and clear sound.

  • High-precision input sensitivity adjustment with 21 levels, 3dB steps; the maximum input gain is 60dB.

  • Efficient algorithm processing: AFC, AEC, ANS, AUTOMIXER, EQ, GATE, AGC and so on.

  • Abundant interface extension: Input and output GPIO of 8 channels can be customized. Support external input level of 3.3 ~ 24V; USB interface supports recording and broadcasting, scene preservation and other functions. RS-485 supports automatic camera tracking, easy to achieve video conferencing; RS-232 two-way serial control interface, it can control or be controlled, such as video matrix, camera and other equipment.

  • Support scene preset for multiple group, user-friendly operating software interface.

  • Fast operation: web control mode, support Android, IOS system.

  • Support 1 USB recording channel.

  • Support echo/noise elimination function.


Datasheet
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DETAILS
SPECS

Specifications of 16 Channel Digital Audio Processor with Echo Suppressor

Model

D6644H

Input number

16

Output number

16

232 serial number

1

485 serial number

1

GPIO number

8, Freely configurable input and output

RJ45 number

1

USB number

1, Supports recording and broadcasting

The maximum analog gain

-60dB

Phantom powered

48V

Input and output

48KHz/24bit

A/D Dynamic Range

120dB

Input common mode rejection

80 dB @ +24dBu @60Hz

Input resistance

20kΩ balance, 10kΩ unbalance

Maximum input

24dBu

D/A Dynamic Range

120dB

Channel isolation

100dB

Frequency response

20~20kHz (±0.25dB)

Total harmonic distortion(THD+N)

≤0.002% @1kHz, +4dBu

Output impedance

100 Ω balance, 50 unbalance

Maximum output

24dBu

Working power supply

AC 90V~260V AC, 50Hz /60Hz

Operating temperature

0~40℃


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