Comments on: How to losslessly concatenate / merge MP3 files

By: Lindylex

Lindylex — Sun, 09 May 2010 07:38:26 +0000

“There is another way, without going through mp3wrap.
cat file list… | ffmpeg -f mp3 -i – -acodec copy outfile.mp3
And then the id3 copy command.”

Shelby, this works perfectly no need to install unnecessary things, Thanks Lex

By: nirpius

nirpius — Tue, 23 Feb 2010 14:05:23 +0000

Just thought you may want to know you can substitute the first line of code for

mp3wrap tmp.mp3 *.mp3

to wrap all files in the folder together

By: Ron

Ron — Tue, 12 Jan 2010 05:02:37 +0000

Thanks for the info. But It seems mp3wrap has got some limit on either the number of input files or total size.

If you have wild-carded the mp3 input file list, you just be running into the shell expansion limit. If so, use the xargs trick:

$ find -name \*mp3|xargs mp3wrap all.mp3

By: Shelby

Shelby — Fri, 02 Oct 2009 16:56:15 +0000

There is another way, without going through mp3wrap.
cat file list... | ffmpeg -f mp3 -i - -acodec copy outfile.mp3
And then the id3 copy command.

By: Tom

Tom — Wed, 23 Sep 2009 08:04:06 +0000

Thanks for the info. But It seems mp3wrap has got some limit on either the number of input files or total size.
do anyone know of this limitation, is there any way around?

By: Paulus

Paulus — Sat, 25 Jul 2009 16:26:27 +0000

Thanks, very useful information. On ubuntu Jaunty, the following packages are required: ffmpeg libid3-3.8.3-dev

By: Andy

Andy — Tue, 12 May 2009 14:13:18 +0000

Great – thanks for the tips – one of those things that you think should be simple but ends up quite complicated (don’t get me started on changing video framerates).

Only thing I couldn’t quite work is what we gain by using mp3wrap vs just cat – since both spit out incorrect headers that we have to fix with ffmpeg, why not use the simpler option?

By: sticks

sticks — Tue, 21 Apr 2009 03:02:19 +0000

Thanks for the tip, this looks very useful. I’m compiling QT and vbrfix now!

By: userwaldo

userwaldo — Mon, 20 Apr 2009 12:14:12 +0000

Found a simple replacement for ffmpeg, since it appears to have a bug in the Ubuntu version.

A little program called vbrfix seemed to do the trick for me.

Lame had been used for the encoding of the original files, before using mp3wrap to combine them.

mp3wrap tmp.mp3 1.mp3 2.mp3 3.mp3
vbrfix -ri1 -ri2 -lameinfo tmp_MP3WRAP.mp3 all.mp3 && rm tmp_MP3WRAP.mp3
id3cp 1.mp3 all.mp3

By: sticks

sticks — Thu, 19 Mar 2009 08:18:45 +0000

Cool … good luck!