[SATLUG] mp3 encoding

Borries Demeler demeler at biochem.uthscsa.edu
Wed Oct 29 09:03:05 CDT 2008


So I guess the answer is no, it can't. I am looking for a program that is 
similar to gopchop, and allows me to write a portion of the file unchanged
back to disk, but clip something off at the end. If Audacity can't do it,
is there a program that can?

-Borries

> It will reencode the entire file again at whatever bitrate you choose.
> 
> >From their wiki:
> 
> "Every time you export from Audacity as an MP3 (or other lossy audio
> format), this encoding necessarily degrades some of the original
> quality of the audio. If you import an MP3 into Audacity, edit it then
> export it as an MP3, you are thus losing quality twice - once in the
> original MP3 encoding of the imported audio, then again when you
> export it from Audacity as MP3.
> If you can't avoid importing an MP3 into Audacity and then re-encoding
> to MP3, don't believe what you sometimes hear that using the same or
> higher bit rate as the original file will prevent quality loss. This
> is incorrect. All you can say is that the higher the bit rate you
> re-encode to, the less will be the quality loss that results."
> 
> 
> 
> -- 
> Jeremy Mann
> jeremy at biochem.uthscsa.edu
> 
> University of Texas Health Science Center
> Bioinformatics Core Facility
> http://www.bioinformatics.uthscsa.edu
> Phone: (210) 567-2672
> -- 
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