Tuesday, March 29, 2011

ALSA tips and tricks

1. If a single channel is selected, the left channel is used. For example using the next function:

int snd_pcm_hw_params_set_channels ( snd_pcm_t *  pcm,

snd_pcm_hw_params_t *  params,

unsigned int  val


If val parameter take value 1, meaning 1 channel (mono), the left channeel of the hardware input will be used.

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