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Computer Audio Asylum Music servers and other computer based digital audio technologies. |
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In Reply to: Ping AudioEngr -- Unmapping Question posted by Charles Hansen on May 31, 2009 at 19:00:08:
My computer still has the motherboard audio, not connected to anything. So I set the default Windows device to use this. This keeps errant programs from getting to my DAC. Accessing a USB device specifically through Kernal Streaming still seems to have some DSP functions, but I don't know where they are coming from. It might have be the Creative driver, or it might have be the OS stack. There was also mixing, with two apps able to simultaneously access the same sound card via KS, and they could even be running at the different sample rates! But when I ran only one app at a time, I did get bit perfect results (verified by driver loopback).
On the other hand, with a juli@ card and all apps using the ASIO interface, exclusive access is enforced and the second ap gets locked out. By playing some clever games skating on the edge of this lockout by starting and stopping aps running at different speeds I was even able to get a sound file recorded at 96 kHz to play by mistake at 44.1! (Not too different than a 78 playing at 33.33)
As fmak has said, there is very little transparency as to what is going on inside Windows with the audio.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
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Follow Ups
- RE: Ping AudioEngr -- Unmapping Question - Tony Lauck 06/1/0908:20:40 06/1/09 (2)
- RE: Ping AudioEngr -- Unmapping Question - fmak 08:51:21 06/1/09 (1)
- RE: Ping AudioEngr -- Unmapping Question - Tony Lauck 11:16:55 06/1/09 (0)
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