Microphone test?

Ubuntu 22.04 desktop.

I haven’t found anything on this… how can I test out the microphones on the VIM4 ?

Thank you !

Hello @p2_83

Can you try to upgrade the kernel and try again?

Upgrade the kernel:

cd /tmp/
wget https://dl.khadas.com/.test/linux-image-amlogic-5.4_1.3_arm64.deb
wget https://dl.khadas.com/.test/linux-dtb-amlogic-5.4_1.3_arm64.deb
sudo dpkg -i linux-dtb-amlogic-5.4_1.3_arm64.deb linux-image-amlogic-5.4_1.3_arm64.deb 
sudo reboot

After reboot, you can record from DMIC.

Recode from DMIC:

arecord -Dhw:0,4 -r 48000 -f S16_LE -c 2 -d 10  test.wav

Brilliant. Thank you very much @numbqq !