[svlug] linux graphical lossless mp3 cutter?

[Daniel Gimpelevich]

On Wed, 20 Dec 2006 13:33:14 -0800, Joe Buck wrote:

> On Wed, Dec 20, 2006 at 01:17:24PM -0800, Daniel Gimpelevich wrote:
>> On Tue, 19 Dec 2006 18:19:07 -0800, Marc MERLIN wrote:
>> 
>> > I've been trying to find a better mp3 cutter, which would basically allow me
>> > to cut out pieces of an mp3 (commercial or whatever) without
>> > decoding/reencoding the entire file.
>> 
>> "Doctor, it hurts when I do this!"
>> Don't do this.
>> 
>> If you use software that does not at least internally decode and reencode
>> the entire file, I guarantee you will get unacceptable results.
> 
> Really?  You are aware, aren't you, that the MP3 file format consist of
> sequences of independent frames?  You most certainly can chop an MP3 file
> at frame boundaries without introducing any loss.  So why are you so
> confident that there will be unacceptable results?  There is even a sync
> mechanism so that a decoder can recover the frame boundary if the file
> is chopped at an arbitrary byte boundary.
> 
> http://en.wikipedia.org/wiki/MP3#File_structure

IME, frame boundaries tend to occur at the most inopportune time indexes
(indices?), and I have never had the sync mechanism work both consistently
and properly.