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Invalid Duration Error Message
https://splasm.com/forum/viewtopic.php?f=13&t=2628
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Author:  shastaron [ Sat Mar 13, 2010 12:27 am ]
Post subject:  Invalid Duration Error Message

I am getting the following error message when loading a large 924.6 mb mp3 file.

Audiobook Builder 1.1.5
Adding Files
File duration is invalid
This file has an invalid duration. It is likely the file exceeds the maximum length allowed by QuickTime for the file's audio sample frequency.
File: /Users/ronaldhord/Desktop/Audacity Try/ Dan Brown - The Da Vinci Code.mp3
Sample Rate: 44100.0 hz
Duration: 57790.09 seconds

System configuration:
Audiobook Builder 1.1.5
MacBook Pro 3.06 GHZ Intel Core 2 Duo
4 GB
OS 10.6.2
running in 32 bit mode

Author:  Randy K. [ Wed Mar 17, 2010 9:21 am ]
Post subject:  Re: Invalid Duration Error Message

This is an issue that can be run into by QuickTime (which we use to process audio) when it hits the wall with its 32 bit limit. At 44100 hz, the maximum file duration is 48695 seconds. In order to process this file, you will need to break it up into at least 2 chunks, each coming in under the 48695 second limit. You can do this by using the start stop settings within iTunes and import a piece, then readjusting the start stop times to the next section and import the same file again. This should give you the file in pieces small enough for QuickTime and Audiobook Builder to process.

You can get to the start stop times by selecting your track in iTunes, and then going to the 'Get Info' menu option under the File menu at the top of the screen. You will find the start stop times under the 'Options' tab.

Author:  callagga [ Tue Feb 07, 2012 3:03 am ]
Post subject:  Re: Invalid Duration Error Message

are there any better ways to work around this?

any 3rd party software that would let me break up a directory of MP3 that are all too big for Audiobook Builder in one hit?

Author:  Randy K. [ Thu Feb 09, 2012 9:39 am ]
Post subject:  Re: Invalid Duration Error Message

Nothing springs to mind, but I haven't spent much time looking for one. If you find a batch solution, feel free to post it so others may benefit from your sluething :wink:

Thanks!

Author:  Jody [ Tue Sep 01, 2015 3:33 pm ]
Post subject:  Re: Invalid Duration Error Message

I'm wondering if the approach to this has changed since this post was created. iTunes has had several iterations since then. If there is a better way I'd like to know about it since I have a file with the same issue importing into ABB.

Author:  Allan W. [ Wed Sep 09, 2015 1:14 pm ]
Post subject:  Re: Invalid Duration Error Message

Setting different Start/Stop times and performing multiple exports is still the best way to break up a file using iTunes.

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