Hi Stephen, On 03/27/2014 06:14 PM, Stephen Hurd wrote: > On my current main system, my headset is actually connected to two > different sound interfaces... the mic is on a separate sound card than > the phones. For whatever reason, Portaudio truly hates this > configuration - likely because having two separate clock sources on a > full-duplex stream will result in weird artefacts. > With most modern sound cards the ADC and DAC of the same sound card run at slightly different clock rates. This appears to be due to the PLL arrangements they use for syncing to SP/DIF channels. It causes all sorts of fun with things like acoustic echo cancellation.
Regards, Steve ------------------------------------------------------------------------------ _______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2
