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  #1  
Old 12-14-2009, 09:54 AM
c-post c-post is offline
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Default how to cope with extremely long sound files

I am unable to load a mono wav file of 640 megs (in PT 6.4.1). I believe the length may be in excess of 8 hours. Every time I try to import it it sits for many minutes importing it then it says it has a program error. PT doesn't crash, it just won't import the file. Any advice?

thanks

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Old 12-14-2009, 10:17 AM
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Delta Music Belgium Delta Music Belgium is offline
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Default Re: how to cope with extremely long sound files

A mono audio file 44.1 kHz/16 bit with a length of 1 minute has a size of 5 MB, 640 MB is 128 minutes, so how can it be in excess of 8 hours?

8 hours would be a size of 2,4 GB. There is a size limit of 2 GB in Pro Tools, this would be an audio file of approx. 6 hours 40 minutes...

Anyway, PT should import a a mono wav file of 640 MB without any problem, so maybe the file is corrupt? Does it play in QT or I-Tunes and/or can you see the actual length displayed?
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Old 12-14-2009, 09:43 PM
c-post c-post is offline
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Default Re: how to cope with extremely long sound files

When I drag the file into itunes it shows the file is 8 hours 34 mins. This was recorded on a portable conference type device. No doubt the 640Meg file is in compressed form. When protools tries to reconstitute the file as an 8 hr 34 min file, it can't handle it.

So I'm stuck at this point. Can't clean up the file cos I can't get it into PT.

c-post
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Old 12-14-2009, 09:45 PM
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Unhappy Re: how to cope with extremely long sound files

The only hope I see is to play it back from itunes realtime and record 4 hour chunks in protools, royal PITA.

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Old 12-14-2009, 09:48 PM
flommer flommer is offline
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Default Re: how to cope with extremely long sound files

Try audacity.. It's free

Or you could try Reaper, just to get this file split..

I have no idea if either of those will have the same problem..
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Old 12-15-2009, 12:11 AM
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JFreak JFreak is offline
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Default Re: how to cope with extremely long sound files

Quote:
Originally Posted by c-post View Post
When I drag the file into itunes it shows the file is 8 hours 34 mins. This was recorded on a portable conference type device. No doubt the 640Meg file is in compressed form. When protools tries to reconstitute the file as an 8 hr 34 min file, it can't handle it.

So I'm stuck at this point. Can't clean up the file cos I can't get it into PT.

c-post
After uncompression, the file is too big in once piece. Older PT had 2GB uncompressed file size limit, the new ones have 4GB limit, but still, it's just too long, plain and simple. Break it into pieces and import again.
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Old 12-15-2009, 12:21 AM
Rail Jon Rogut Rail Jon Rogut is offline
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Default Re: how to cope with extremely long sound files

A WAV or AIFF file both use 4 bytes to save the data length... so they can't store more than 4GB

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  #8  
Old 12-17-2009, 12:10 PM
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Smile Re: how to cope with extremely long sound files

Well, Audacity DOES seem to be working for this unusual file length problem. I will split the file in two, export as wav, then bring into protools for extensive processing with my plug ins. Thanks a bunch!

c-post
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