arecord: main:788: audio open error: Device or resource busy

Hi,



I have a problem with the installation of Respeaker 2 Mic Hat.

Raspberry PI 3

Distributor ID: Raspbian

Release: 9.4

Codename: stretch

I just only on this Raspberry “snips”



And I have this error when I try to record :

arecord: main:788: audio open error: Device or resource busy



I tried to remove and reinstall but the situation it is the same.

It works with a simple USB Mic.

Thanks for you help.

Hi there,



it seems other process occupied the mics. please run ps -A to see any arecord process and kill it. then try it again. thanks.