Puppy Linux Discussion Forum

r__hughes · Joined: 13 Apr 2006 Posts: 320 Location: Canada

Can puppy3.01 do this?
I have a folder with many (about 90) small mp3 files and I would like to merge(append) these files into one big mp3 file where the filenames are merged(appended) in alphabetical order - see the list below.

ss1-01.mp3
ss1-02.mp3
ss1-03.mp3
ss1-04.mp3
ss1-05.mp3
ss1-06.mp3
ss1-07.mp3
ss1-08.mp3
ss1-09.mp3
ss1-10.mp3
- - etc etc --
ss1-87.mp3

The pup301 menu/multimedia/Soxgui doesn't handle mp3 files.
Is there a linux merge or join command to do this (cat doesn't work) or perhaps a puppy package that I haven't been able to find. I have seen references to sourceforge's mp3wrap but I lack the expertise to compile the downloadable source code.

MU · Posted: Fri 11 Jan 2008, 13:07 Post_subject:

Type this in the same folder:

Bruce B · Joined: 18 May 2005 Posts: 7420 Location: Los Angeles

Mark,

Very interesting in two regards

(1) is I didn't know .mp3 files could be butted together to make a playable file. Maybe I thought it couldn't because of the ID3 data.

(2) is more complex for me to explain, I think I'll try and do it by example using a set of DOS commands with its for loop and explain where I'd get in trouble.

rem >big.mp3
for %%f in (*.mp3) do cat %%f >> big.mp3

This presumes that I have a dos external file called cat which is available.

One annoyance is that the DOS for loop doesn't sort the files as Linux ls would.

The real problem is big.mp3 will be included in the for instructions. When its turn comes up, it will cat to itself.

My workaround would be to call big.mp3 something like big.out to exclude it from processing. - after the processing, I'd name it big.mp3

Sorry for my DOS for example, but I guess it gives enough qualifying information to ask the question below.

MU · Posted: Fri 11 Jan 2008, 14:26 Post_subject:

I think you're right.
Simple to solve:

MU · Posted: Fri 11 Jan 2008, 14:31 Post_subject:

concerning 1.)
Doing a simple "cat" will create no "valid" mp3.
Beside the music you have the header of each file.
A header must be in the head, and not somewhere inside a file.
For this reason sound-editors should have problems with it.
But according to reports, players skip these headers, so you can play it.

Just try it and let us know if you can confirm that Smile

Mark

rabiul · Joined: 16 Dec 2007 Posts: 3

<<<-------- Allah, In your heart.

There is a command line utility 'mp3wrap' to join mp3 files. Project's homepage is:
http://mp3wrap.sourceforge.net/

I think if you join mp3 files by 'cat', you can listen the result mp3 file by command line player. Each source mp3's header will be in the result mp3. However, I am not sure about 'cat' result. Try by....

MU · Posted: Fri 11 Jan 2008, 17:02 Post_subject:

Thanks rabiul!
Dotpup:
http://puppyfiles.ca/dotpupsde/dotpups/Multimedia/Mp3wrap-0.5.pup

It adds a menu-entry in multimedia Smile

Mark

disciple · Posted: Fri 11 Jan 2008, 17:14 Post_subject:

mp3wrap package for Puppy. The forum search is your friend Smile

-----------------
Oops - Mark beat me to it. Now we have 2 copies.

Dingo · Joined: 11 Dec 2007 Posts: 923

three with me. file mirrored on dokupuppy

I think, like the ancient latins melius abundare quam deficere

r__hughes · Joined: 13 Apr 2006 Posts: 320 Location: Canada

Thank you MU for your code - it works a treat - I had 8 folders , each with about 90 mini mp3 files which I have now been able to convert to 8 big files which work perfectly on all my mp3 players Smile

okabacus · Joined: 09 Jan 2008 Posts: 9

I've been able to open otherwise-unreadable mp3s for editing after converting them to WAV (a trick I think I learned while using Goldwave. Gads that was long ago).

There's a companion util, mp3splt, that will split the files back into their component files (claims to work with AlbumWrap files also; haven't tried it).

http://mp3splt.sourceforge.net/mp3splt_page/downloads.php (the GNU/Linux entry is a precompiled binary, seems to work fine).