In Reply to: RE: Interesting analogy, but... posted by phofman on March 24, 2012 at 23:28:26:
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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.
==========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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Follow Ups
- RE: Interesting analogy, but... - phofman 00:23:44 03/25/12 (25)
- a bit of ancient digital history... - Tony Lauck 10:42:47 03/25/12 (24)
- RE: a bit of ancient digital history... - phofman 11:26:14 03/25/12 (23)
- RE: a bit of ancient digital history... - Dynobot 06:24:03 03/26/12 (22)
- RE: a bit of ancient digital history... - phofman 14:02:55 03/26/12 (18)
- No results needed - Dynobot 18:57:43 03/26/12 (17)
- RE: No results needed - phofman 00:27:14 03/27/12 (16)
- DBT - Dynobot 06:23:30 03/27/12 (15)
- RE: DBT - phofman 06:38:46 03/27/12 (14)
- HAhahahahaha I WIN!!!! - Dynobot 06:46:32 03/27/12 (13)
- RE: HAhahahahaha I WIN!!!! - phofman 07:00:41 03/27/12 (12)
- RE: HAhahahahaha I WIN!!!! - Tony Lauck 09:43:03 03/27/12 (9)
- RE: HAhahahahaha I WIN!!!! - phofman 10:36:53 03/27/12 (7)
- Hello Little Circle - Dynobot 11:16:01 03/27/12 (0)
- RE: HAhahahahaha I WIN!!!! - Tony Lauck 10:58:32 03/27/12 (5)
- RE: HAhahahahaha I WIN!!!! - phofman 13:20:36 03/27/12 (1)
- RE: HAhahahahaha I WIN!!!! - Tony Lauck 13:39:15 03/27/12 (0)
- RE: HAhahahahaha I WIN!!!! - Dynobot 11:06:27 03/27/12 (2)
- Quantum mechanics... - Old Listener 12:13:21 03/27/12 (0)
- RE: HAhahahahaha I WIN!!!! - Tony Lauck 12:03:37 03/27/12 (0)
- Proving Perception - Dynobot 09:52:35 03/27/12 (0)
- if people can REALLY distinguish between RT kernel - Dynobot 07:09:46 03/27/12 (1)
- RE: if people can REALLY distinguish between RT kernel - phofman 07:14:00 03/27/12 (0)
- RE: a bit of ancient digital history... - Scrith 10:39:43 03/26/12 (2)
- DAC IS DEPENDENT ON THE TIMING OF INCOMING DATA. - Dynobot 10:31:37 03/27/12 (0)
- RE: a bit of ancient digital history... - Dynobot 19:01:51 03/26/12 (0)