Bugs item #1837369, was opened at 2007-11-23 23:43
Message generated for change (Comment added) made by bachtiar
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Category: None
Group: Compatibility
Status: Open
Resolution: Invalid
Priority: 3
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: Wrong duration of mp3 (encoded with 3.98 V3) in Audition 1.5
Initial Comment:
I converted some audiotrack of length 3:31.933 or 9346260 samples (stereo, 44100Hz) with lame 3.98 (beta 5, Aug 12 2007 and beta 6, Nov 1 2007). Foobar2000 and Winamp shows its length correctly, but Audition 1.5 determined it as 3:13.000 or 8511320 samples.
Encoding of pure silence of 9346260 samples results in the same effect.
lame 3.97 works correctly with Audition 1.5.
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Comment By: WERWRWR (bachtiar)
Date: 2008-03-21 09:47
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Perhaps I wasn't clear enough: I use foobar2000 only to open mp3s and
check their length. The files are just like LAME writes them.
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Comment By: Robert Hegemann (robert)
Date: 2008-03-18 22:56
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bachtiar,
when using foobar2000, which tool writes ID3v2 tags, LAME or foobar?
Does foobar add a TLEN tag, which seems to be important for Windows Media
Player?
Robert
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Comment By: WERWRWR (bachtiar)
Date: 2008-02-14 07:06
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Robert,
I also tried using -T ("force writing LAME tag") and got the same result
(wrong length).
For testing, I used a recent build of foobar2000, which I consider quite
well-behaved when it comes to handling MP3s.
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Comment By: Robert Hegemann (robert)
Date: 2008-02-13 11:54
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Dear nobobdy,
if you disable the LAME/Xing tag frame via '-t', then any stupid program
like Audacity will tell you the wrong duration. This is not a bug of LAME,
it's just that those programs do not scan the entire mp3 file to determine
the correct length, but look for the information stored in the LAME/Xing
tag. Windows Media Player is a different beast, looking at ID3v2 tags
only.
Ciao Robert
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Comment By: Nobody/Anonymous (nobody)
Date: 2008-02-11 06:05
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For the sake of completness, my entire command line was
lame -t -S -V 5 test.wav test.mp3
(Note the "-t"!)
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Comment By: WERWRWR (bachtiar)
Date: 2008-02-11 05:55
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I confirm incorrect track length behaviour with 3.97 compiled on Cygwin.
The problem appears (at least) with -V 4, -V 5, -V 6, but not when using
defaults (implicit) options.
If mp3 in opened in foobar2000, the track length typically displays ~30
minutes instead of 5.
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Comment By: Robert Hegemann (robert)
Date: 2008-01-03 12:04
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Does Audition use the lame_enc.dll or the lame.exe?
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Comment By: Nobody/Anonymous (nobody)
Date: 2007-11-23 23:48
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Forget to mention: I observed this effect with "-V 3 --vbr-new" and "-V 3"
options. "-V 2" works ok.
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