[alsa-devel] Is there a way to figure out if the clocks of two snd_pcm_t's deviate? (snd_pcm_info_get_sync?)

[Mark Brown]

On Fri, Sep 04, 2009 at 08:44:50AM +0200, Jaroslav Kysela wrote:

> I cannot recall from my mind, if any card has two clock sources - maybe 
> only old Gravis UltraSound hardware with GF1 and CS4231 chips, but it's 
> history. Also, professional hardware can run with word clock sync (wire 
> connection carrying sample clock) or S/PDIF clock sync. But it's matter of 
> user configuration.

Several of the embedded CODECs can have multiple master clocks active
simultaneously within just that device and even more embedded systems
are able to run with multiple masters.