[haiku] Re: A little audio survey
- From: pete.goodeve@xxxxxxxxxxxx
- To: haiku@xxxxxxxxxxxxx
- Date: Wed, 20 Jul 2011 19:19:52 -0700
On Thu, Jul 21, 2011 at 12:38:51AM +0200, Axel Dörfler wrote:
> I am not able to produce glitches with HDA (as long as the serial output
> is turned off).
> I guess its buffer size is large enough - it has been developed
> primarily on Haiku, anyway.
>
There's always one more thing... I finally left my machine running with
the large buffer long enough for the audio to awaken (took about half an
hour this time) and ran my ToneProducer test. Like you I was absolutely
unable to hear any glitches, however hard I waggled windows around.
*However*, the test text output still showed countless 'buffer late'
messages, and Cortex actually showed latency increasing. (I'm using
my patched libmedia, which helps keep latency within bounds.)
So I stand by my thesis that a sufficiently long buffer will mask the
blackouts (because the mixer can catch up), but they still occur
(on a single-core machine anyway).
-- Pete --
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