Mp3->MP3 ->different lengths

[Pete The Chief]

I converted a sound track from a movie from 192kbit to 128kbit
But when i compare these two, the new mp3 is stretched(in playtime 100:21 instead of original 100:12).
I also tried to fix the mp3 first with besplit and then transcode,but with the same result.

Any Idea??

Here ist the log:

BeSweet v1.4RC7 by DSPguru.
--------------------------
Using hip.dll v1.1 by Myers Carpenter <myers@users.sf.net>
Using lame_enc.dll v1.28 (4/6/2002), Engine 3.92 <http://www.mp3dev.org/>.

Logging start : 09/11/02 , 14:08:17.

d:\DIVX\Bsweet\BeSweet.exe -core( -input d:\TS192kbit.mp3 -output d:\TS 128kbit.mp3 -logfile D:\DIVX\Bsweet\BeSweet.log ) -lame( --scale 1 -p --alt-preset 128 )

[00:00:00:000] +------- BeSweet -----
[00:00:00:000] | Input : d:\TS192kbit.mp3
[00:00:00:000] | Output: d:\TS 128kbit.mp3
[00:00:00:000] | Floating-Point Process: Yes
[00:00:00:000] | Source Sample-Rate: 44.1KHz
[00:00:00:000] +-------- LAME -------
[00:00:00:000] | 'abr 128' preset is used
[00:00:00:000] +---------------------
[01:48:01:868] Conversion Completed !
[01:48:01:868] Actual Avg. Bitrate : 134kbps
[00:19:19:000] <-- Transcoding Duration
Logging ends : 09/11/02 , 14:27:36.

[DSPguru]

what's streched ? file-size ? or playback length ?

[Pete The Chief]

The Audiolentgh differs

originallength: 100 min 12 sec
newlenght: 100min 21 sec

[pacohaas]

what are you using to see the audio length? (I ask because WiMP has a tough time with VBR files)

From your log(thanks for posting it btw) I see that the length should be 1:48:01:868=108m 1.868s, which is neither 100 min 12 sec nor 100min 21 sec.

[Pete The Chief]

yes,sorry ist 108:21 when i look up with winamp
and 108:12 for the original file(so, also different from bewseet log)

But when i remux video and audio i can clearly hear that it unsynchron

[DJ Bobo]

May be it's because of BeSweet.
Try encoding directly in RazorLame (save to a different directory)

[Pete The Chief]

Tried razorlame with lame 3.92> exactly same result


its really crazy ,with other files transcoding works, but not with this one.

[DSPguru]

i guess you extraced the file from avi ? in that case, when remuxing you need to assert the delay again..

[Pete The Chief]

I just remuxed the audio track twiceand now it is synch.
D'ont know why it worked this time. :confused: :confused:

But relly confusing that they have different length