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Music servers and other computer based digital audio technologies.

RE: Absolutely Nothing

I found the distinct shape of the two eye patterns interesting after I blew up the images so I could see them.

The connection between the USB jitter as seen on an eye pattern and the jitter in the recovered audio clock is far from clear. USB is packetized and there must be buffering involved to get over the gaps in data caused by the protocol. This will create jitter problems in the output audio samples even if there is zero jitter on the input. Contrast that with the situation with SPDIF where the relationship between the SPDIF clock and the DAC word clock is quite simple and if somehow, magically, there could be no jitter on the incoming waveform a clean clock would be readily available.

Tony Lauck

"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar

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