I'm working on a project to add an external sound card to Raspberry Pi 3. The sound card we use has a sound codec with IC TLV320AIC3101. This IC has an I2C control interface and an I2S interface. I wa...

I'm working with a C-Media CM-6632a USB audio controller. It's working well except for an intermittent mixer problem causing either muted or distorted audio output. After this happens, alsamixer is ...

I have an audio box that can be connected via USB to my laptop. I've written a C application that uses the ALSA API to open a communication channel with this audio box. The communication should be est...

I am trying to write random noise to to a device and allow my loop to sleep when I have written enough data. My understanding is that for each call to snd_pcm_writei I am writing 162 bytes (81 frames...