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Computer Audio Asylum Music servers and other computer based digital audio technologies. |
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In Reply to: Guys remember what the cable does and why they make a difference posted by Gordon Rankin on February 18, 2008 at 08:37:08:
One question.
I seem to remember reading that all USB packets, including the synchronous ones, have a header before the payload. Also, even if the bandwidth is specifically reserved for them by the host, they are still multiplexed with other packets if other devices are attached (say a keyboard).
But even if the audio device is the only one on the bus, how does the presence of the headers and of the temporal gaps between consecutive packets affect the audio quality? Does the DAC stream the data in real time as it arrives? No buffering whatsoever (not even 100 bits)? This would require extraordinary precission from the host device since it would have to put the packets on the wire at exactly the right time. Am I missing something?
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Follow Ups
- RE: Guys remember what the cable does and why they make a difference - Adal 16:01:58 02/18/08 (4)
- A little insight - Gordon Rankin 09:54:57 02/19/08 (0)
- RE: Guys remember what the cable does and why they make a difference - audioengr 18:10:18 02/18/08 (2)
- RE: Guys remember what the cable does and why they make a difference - Adal 06:59:13 02/19/08 (0)
- In bursts? - Slider 22:00:48 02/18/08 (0)
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