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    SubjectRe: hdd & sound
    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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