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Re: [Phys-l] Another technical question

There are several programs to do this but...

The MP3 files have to have the same format. In other words you can't
lossless join a 128kb file with a 320kb file, and VBR can not be joined with
CBR, or stereo can not be joined with joint stereo. MP3 Direct Cut can be
coerced into doing this by cutting and pasting. You will probably have
problems with maintaing the tags. There are some other free
joiners/splitters on the web, but I haven't tried them.

Your only alternative may be to use a general audio editing program of which
my favorite is Audio Cleaning lab. The program would decode the MP3 files,
you can then edit them, and re-encode the files. But this entails some
slight loss in quality because every time you encode MP3 information is
removed from the spectrum to allow high compression. Depending on the
material, the increase in "artifacts" might be inaudible or acceptable.
Older versions of ACL are often available at low cost and sometimes free.
It is one of the easiest audio editors to use and has excellent
functionality. The marker declicker is good, but the regular declicker and
decrackler are so-so. The best consumer declicker/decrackers is probably
Sony Noise Reduction 2.0. I auditioned a large number of them! For tagging
MP3 files, and converting from one format to another FOOBAR2000 is probably
one of the best and is free. There are also some free audio editing
programs.

MP3 at high bitrate is indistinguishable from the original by most people,
but there are a few individuals who can hear a difference even at 320kb from
the original. If you need to do editing the original wave files or a
lossless format such as FLAC are the best. Strangely enough the difference
between lossy formats and lossless may not be heard on conventional things.
Classical music is fairly compressable for example. Dense Middle Eastern
music may be much harder because of the thick texture, percussion, and
frequent dissonance. When designing HD radio compression the most difficult
thing to get right was a male German speaker. Go figure!

John M. Clement
Houston, TX


I want to concatenate several short mp3 files (turn them
into one long mp3 file). How can this be done?

Thank you in advance,

Ludwik

http://csam.montclair.edu/~kowalski/life/intro.html