[ardour-users] file lengths

Paul Davis paul at linuxaudiosystems.com
Thu Jan 19 15:10:43 PST 2006

On Thu, 2006-01-19 at 16:55 -0500, Peter Lutek wrote:
> since all files are converted to wav or bwf on import, it is not 
> possible to import (or record, for that matter) files which would result 
> (i.e. after splitting channels) in filesizes greater than ~4Gb, right? 
> i'm a little confused about that limit.... some sites say 2Gb and some 
> say 4Gb.
> anyway, there is a constraint on the length of any single chunk of audio 
> due to the wav/bwf format, right? would someone clarify this in 
> real-world numbers, please? i'm looking at recording live events which 
> run to a few hours, in 96k, float.

RIFF/WAV has an internal length field that holds (2^31) bytes as a
maximum value.

your filesystem can probably get to a 64 bit length. this doesn't solve
the WAV internal length problem.

you can't even get 1 hour from WAV using 32 bit sample format @ 96kHz.




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