Installed a Griffin iMic USB sound card on Raspberry Pi today.
Here’s how:
- plug in imic
- Edit alsa config file so that imic is default sound cart
- test
Details
For editing alsa, follow instructions at beginning of this post for editing /etc/modprobe.d/alsa-base.conf
But you can stop following the instructions after the first reboot.
http://www.jackenhack.com/raspberry-pi-usb-audio-quality-problems/
For testing, use this command:
sudo aplay /usr/share/sounds/alsa/Front_Center.wav