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HUAWEI VPM220W Microphone Array
User Guide
Category
Protocol and standards
compliance
Audio
Microphone
Power supply and power
Issue 01 (2013-9-15)
B
Technical Specifications
Item
Network port
Audio input/output
interface
Input interface
Output interface
Sampling rate
Frequency response
Acoustic Echo
Cancellation (AEC)
Acoustic Noise
Suppression (ANS)
Automatic Gain
Control (AGC)
Signal-to-noise ratio
(SNR)
Sensitivity
Audio pickup
distance
Audio pickup scope
Input voltage range
Output voltage
Operating power
consumption
Standby power
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
B Technical Specifications
Specifications
None
Huawei private audio protocol
Micro USB
None
48 kHz
3 dB: 0.2 kHz to 14 kHz
6 dB: 0.1 kHz to 20 kHz
Supported
Supported
Supported
Not less than 70 dB
38±2 dB
6 m
360°
100 V to 240 V AC (50 Hz/60 Hz)
5±5% V DC
2 W
0.7 W
18
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