Messages in this thread | | | Date | Tue, 17 Aug 1999 23:24:14 +0200 | From | Roger Larsson <> | Subject | Re: hdd & sound |
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Hi all,
Lets make some definitions.
pitch problem (sounds analogue) - (Wakkos) the sound changes pitch when hard disk is accessed.
hack problem (sounds digital) - the sound drops out for short intervals since the sound generating program do not get. Digital effect. - time from waking of a higher priority process to it gets CPU to keep the output buffer filled. This can be somewhat avoided by sound application writers by using ridiculous huge output buffers. [ongoing work in this area is described on http://www.gardena.net/benno/linux/audio/ Ingo Molnar is involved. Latest version (N6+) < 5 ms ... ] - enough IO to keep the input buffer filled. [you would probably need something like the described in thread "Prioritized IO", but you need to fix the CPU problem first... ]
stuck problem (sounds digital) - (mine when trying to reproduce the pitch problem) after several repeated runs of a process that stress disk write the sound gets stuck in some strange output. [Working with Alan to find this]
So, where does your fit?
/RogerL
--
The Internet interprets Windows as damage, and routes around it.
Roger Larsson Skellefteå Sweden
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