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Music servers and other computer based digital audio technologies.

RE: Interesting analogy, but...

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It means every 5ms MPD makes sure there is approx. 495ms of fresh audio samples ready in RAM for the DMA to read.
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And the process scheduling jitter means whether those 5ms are precisely 5.00ms or 5.1ms or even 7 ms. It could even be hundreds of ms without any impact on the DAC operation, if the buffer time is still significantly larger to give the OS enough time to re-fill the part of memory buffer with old data. The computer audio was intentionally designed this way not to give CPU the last word in data transfer. The engineers would have had to be completely dumb to allow that.



Edits: 03/25/12

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