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The DK2 board recording voice is very low volume

SChen.11
Associate III

Hi, I test the record voice on dk2 board. Using below command to recorded. After recorded, I use aplay to play that file. The sounds volume very low. I had setting some volume through alsamixer command.

arecord -f cd -c 2 test.wav

Does it working correct?

3 REPLIES 3
Olivier GALLIEN
ST Employee

Hi Steve,

Are you aware and did you refer to wiki page ?

https://wiki.st.com/stm32mpu/wiki/How_to_record_audio

Which input source are you using ?

Thx

Olivier

Olivier GALLIEN
In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.

Yes, I refer that wiki page and execute those command to record audio. I use a mobile headset from samsung.

Olivier GALLIEN
ST Employee

Hi @Community member​ 

Could you please share with us :

- dmesg content after arecord command

- output of execution of alsa-info.sh script attached ( bash alsa-info on the target )

- audio file recorded

Thanks

Olivier

Olivier GALLIEN
In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.