Random Access Audio Format
Random Access Audio Format
- Subject: Random Access Audio Format
- From: Ian Krieg <email@hidden>
- Date: Mon, 28 Feb 2005 11:50:48 -0500
Hello,
I am planning to build an application which will work with long sound
files. Due to the nature of the program, it is acceptable for me to
define in advance what format the sounds should be in; sounds in
other formats could be imported and exported, but files native to the
application would all use the same sound file format. I want to do
it that way so that I can write simpler code for working with the
sound.
I am looking for a sound format that can do the following things:
- Random access from disk, so that part of it can be played without
loading the entire sound from disk into memory
- Be written to disk in realtime while a sound is being recorded.
(I'll need to do some fun buffering to make this work, but even with
that, I suspect some file formats would not work. Changing a
fixed-size header every now and then would be fine, but needing to
have the whole sound to write any sound data would not.)
- Compression, where compatible with the above goals, would be an
excellent thing.
- Native CoreAudio support would be highly preferred, though I
haven't looked to see whether it can handle random access to a file
without a lot of help from me. I suspect it would need help, but
hopefully it could still do it.
I would welcome any advice.
Thank you,
Ian Krieg
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