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Multi-Mic Array Microphone • User Manual
11
Adjust the output volume of the device according to need.
Noise Reduction Level
Enable the function in noisy environment. The higher the value of the noise reduction, the
better capacity of the noise suppression.
Audio Encoding
Select the type of the audio encoding according to the platform or custom demand.
Sampling Rate
The higher the value of the sampling rate, the higher quality of the sound.
Audio Stream Bitrate
It can only be set under AAC encoding.
2. Optional: Go to Configuration →Audio → Educational Audio Settings, and enable Echo
Suppression to suppress the echo effectively for online class or video conference.
Note
The function is only supported by certain model.
Three scenes can be set. You can quick select the set scene according to the actual environment,
and slightly adjust the parameters.
Steps
1. Go to Configuration → Audio → Parameter Settings → Advanced Settings.
2. Select a scene No.
3. Set the following audio parameters.
Dereverberation Level
The higher the value, the better capacity of the dereverberation. When the dereverberation
is strong, raise the value to get clear sound.
AGC Level
The higher the value, the louder the small audio signal. It is recommended to set the value
below 30.
AGC Rate
The higher the value, the better capacity of suppressing the interference audio signal. It is
recommended to set the value between 2 to 3.
Smart Noise Reduction
It suppresses certain transient noise, such as claps, keyboard knock, sound of falling and
closing the door. The function is off by default.
4. Click Save to save the settings.
5. Click Reset to restore the settings to factory default.
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