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respeaker / usb_4_mic_array

ReSpeaker 4 Mic Array with builtin VAD, DOA, AEC, Beamforming & NS
https://www.seeedstudio.com/ReSpeaker-Mic-Array-v2.0-p-3053.html
Apache License 2.0
142 stars 66 forks source link

Alsamixer empty #27

Closed jr-k closed 5 years ago

jr-k commented 5 years ago

I'm trying to adjust capture volume in alsamixer but when I'm choosing this card I got this message : This sound device does not have any controls.

What is a correct asound configuration file for this card ?

Thanks.

xiongyihui commented 5 years ago

The device doesn't have any hardware volume controls. We can use the ALSA plugin softvol to adjust the volume, or use tuning.py to control the gain.

jr-k commented 5 years ago

Ok thanks for your answer.