Re: [linux-audio-dev] file format

On Tue, Oct 11, 2005 at 01:02:59AM +0200, fons adriaensen wrote:
> Hi all,
> For one of my current projects (to be presented at LAC2006) I'm
> looking for a suitable file format.
>
> Each file should contain:
>
> - A number of short (+/- 10 seconds) chunks of PCM audio. The number
> of channels will be different in each chunk. The only sample format
> required is single precision floating point. For multi-channel
> chunks, non-interleaved is preferred. All chunks will normally use
> the same sample frequency.
>
> - Metadata, both numerical and textual. The format should allow to
> have several chunks of these, and to add new ones later without
> breaking compatibility (i.e. readers will ignore parts they do
> not understand).
>
> There is no need for the audio to be usable with normal players -
> it's not meant to be listened to directly.
>
> Is there any standard file/container format that would provide for
> this sort of thing ? I've been looking at ogg, but it's a bit over
> the top - I don't need any streaming features.
>
> The alternative is of course to have separate WAV files and some
> text file for the metadata, and combine all of this into a directory
> that would then be handled as a unit. But I'd prefer to have all
> data in a single file.

Maybe braodcast wav files with cart chunk chunks.

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