10 Jan
2009
10 Jan
'09
3:27 a.m.
On Saturday 10 January 2009 00:16:04 Justin Smith wrote:
I am under the impression that with multiple sound
cards you have the
issue of clock drift, the audio channels would eventually go out of
sync, and this would get worse and worse over time. When only one
sound card is being used, the application can sync the video playback
to the audio device, since video speed is not as evident a distortion.
With multiple audio devices with separate clocks, you would most
likely get annoying phasing and comb filter artifacts, if not a
distinct echo. There are firewire cards that can share a clock in
order to eliminate this problem, but I have not heard of USB cards
that share a clock pulse.
Ah, i had not thought of that and it makes sense. Thank you. Would it be
possible to have the Linux box do the decoding and send it to a hdmi D/A (if
such a thing existed, i only know of HT processors) or a RME multi-channel
converter?
--
Bearcat M. Şandor
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