have a look at this on wiki... http://en.wikipedia.org/wiki/Jitter
> In the context of digital audio extraction from CDs "jitter" causes > extracted audio samples to be doubled-up or skipped entirely. The > problem occurs because the Philips CD specification doesn't require > block-accurate addressing. As a result, the extraction process will > restart a few samples early or late, resulting in doubled or omitted > samples. These glitches often sound like tiny repeating clicks during > playback. An approach that has produced good results is to do jitter > correction in software. This involves performing overlapping reads, and > then sliding the data around to find overlaps at the edges. Most DAE > programs will perform jitter correction. So jitter can and is used in the context of digital audio extraction... Anway, the jitter I am really concerned with is related to the SPDIF connector. As AndyC says it's due to differences in the clocks on the external DAC and the SPDIF source. Use of a phased locked look reduces this... I was interested in to what extent it can eliminate it. From Andy's post it looks like not entirley which makes we worry about finding a decent external DAC. -- willyhoops ------------------------------------------------------------------------ willyhoops's Profile: http://forums.slimdevices.com/member.php?userid=10563 View this thread: http://forums.slimdevices.com/showthread.php?t=35261 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
