I was recently bought a ReSpeaker 6-Mic Circular Array kit for Raspberry Pi.
The install of drivers completed successfully, and I have managed to get trespeaker_4mic_array.py working so the connection to the board seems to be working, however I try to start alexa-tap it returns me an error :
alexa-tap
press ENTER to talk
arecord: set_params:1299: Sample format non available
I follow wiki and can get it work as below, please use the audacity to record the audio and see if it works. please try the whole process if it does not work. thanks.