[ardour-users] file lengths

[Peter Lutek]

Marijus Bernotas Marukas wrote:

>This is serious. I was trying to record a long track from DAT source and
>ardour hanged when I clicked stop :/ As a result no wav file was created -
>1,5 hours of work were lost.
>
>Is it possible to record using raw audio instead of WAV?
>
>Marijus 
>  
>
i don't believe there's any way around this currently in ardour, because 
it uses only wav or bwf. if this is incorrect, i'm sure paul will jump 
in to correct me!

currently, for long recording times, i'm using ecasound and recording to 
w64 files. if i want to import those to ardour for an edit/mix, i have 
to split them into shorter chunks.

i would agree with you that it's a serious issue, especially with higher 
bit depths and sample rates becoming more common and possible.

-p

>-----Original Message-----
>From: ardour-users-bounces at lists.ardour.org
>[mailto:ardour-users-bounces at lists.ardour.org] On Behalf Of Paul Davis
>Sent: Friday, January 20, 2006 1:11 AM
>To: Peter Lutek
>Cc: Ardour users list
>Subject: Re: [ardour-users] file lengths
>
>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.
>
>--p
>
>
>	
>
>	
>
>_______________________________________________
>ardour-users mailing list
>ardour-users at lists.ardour.org
>http://lists.ardour.org/listinfo.cgi/ardour-users-ardour.org
>
>
>  
>