I try to capture sound by your product 4mic linear array.
I’ve flashed latest raspbian using rpi-image tool.
sudo apt-get update
sudo apt-get upgrade
git clone https://github.com/respeaker/seeed-voicecard.git
install successfully and found respeaker device like this
pi@raspberrypi:~$ arecord -l
**** List of CAPTURE Hardware Devices ****
card 2: seeed8micvoicec [seeed-8mic-voicecard], device 0: bcm2835-i2s-ac10x-codec0 ac10x-codec0-0 [bcm2835-i2s-ac10x-codec0 ac10x-codec0-0]
Subdevice #0: subdevice #0
I try to capture sound by command line bellow
arecord -Dac108 -f S32_LE -r 16000 -c 8 a.wav
Channels that are contained pcm data are changed everytimes. 0, 1, 6, 7 channels had the pcm. sometimes 2,3,4,5 channels had the pcm. (I’ve tried again and again)
Please check it this issues.