[linux-audio-dev] file format

[Lars Luthman]

On Tue, 2005-10-11 at 01:02 +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. 

Both WAVE and AIFF are (R)IFF based, so you can put any 'chunks' of
arbitrary data in them and they will still be valid WAVE or AIFF files.

-- 
Lars Luthman
PGP key:     http://www.d.kth.se/~d00-llu/pgp_key.php
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