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Rockbox mail archiveSubject: Re: Trimming an MP3 fileRe: Trimming an MP3 file
From: Chris Holt <amiga2k_at_cox.net>
Date: Fri, 20 Jun 2003 20:28:08 -0400 On Sat, 21 Jun 2003 01:09:17 +0200, Linus Nielsen Feltzing wrote: >Johan Vromans wrote: >>So I did. Removed two frames from the start. And this is what I get: >> >>Time: | | | | | (tick = 50ms) Original: >>----------abcdefghijklmnopqrstuvwzyz...... New: >>------+hijklmnopqrstuvwzyz...... >> >>There are 50ms gone, but not the first. > >How is the file encoded? Is it VBR or CBR? What samplerate/bitrate? > >If you use 44100kHz, each frame is about 26 milliseconds. It looks like >the first frame in your new stream is muted by the MP3 decoder, probably > because it contains data that depends on the previous frame (the bit >reservoir) that you cut out. Which decoder do you use? > >Linus If I could add this excellent FAQ to your answer, I think Johan might find it very enlightening. Especially the first three questions. http://lame.sourceforge.net/tech-FAQ.txt Chris Received on 2003-06-21 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |