The disadvantage of using asynchronous clocks is that sooner or later you will have a buffer (FIFO) under- or over- run to deal with. Once that happens I don't think you have much alternative other than to either drop or repeat an audio sample.
Using Xtals at 30ppm accuracy, you could still have up to 60ppm difference between them, which (if my maths is correct) is about 2.6 samples difference every second (assuming 44.1KHz samples). Surely repeating or dropping up to 2.6 audio samples per second would a) have a negative effect on the performance of an oversampling DAC's filters, and b) be audiable? So whilst the BM may be great on jitter imunity, does it suffer from a more fundamental (but even harder to measure) flaw? -- Patrick Dixon www.at-tunes.co.uk ------------------------------------------------------------------------ Patrick Dixon's Profile: http://forums.slimdevices.com/member.php?userid=90 View this thread: http://forums.slimdevices.com/showthread.php?t=17948 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
