Converting multiple files to mp3

[voidmain]

quote:Originally posted by void main:
Actually the spaces are a problem in the lame command, not the "for" loop. This works for me:

$ for i in *.[Ww][Aa][Vv]; do lame --preset extreme "$i" "${i%%.[Ww][Aa][Vv]}.mp3"; done

Which also accounts for case. The quotes should fix the problem with spaces in the parameters for lame.

Or to do everything in the current directory and all subdirectories:

$ for i in `find -iname '*.wav'`; do lame --preset extreme "$i" "${i%%.[Ww][Aa][Vv]}.mp3"; done

[edit]
This last example doesn't work. Sorry about that!
[/edit]

[ January 28, 2003: Message edited by: void main ]

[flap]

I don't think that last one works with spaces.
 You're right though that "for i in *.wav" will work if you enclose the "$i" in quotes, but that won't work if you're using "for i in `find..."

[voidmain]

You are right, and the bad part is I actually knew that wouldn't work, and I actually tested it and proved that it didn't work, and then I posted it anyway as I was distracted on another forum...

[ January 28, 2003: Message edited by: void main ]

[Agent007]

hi all,

Thanks a tonne to beltorak, the following syntax works superbly!! Encoding wav files to mp3 is just a breeze!

 

quote:
find -name "*.wav" | while read item; do lame --preset extreme "$item" "${item/.wav/}.mp3";done

Could someone pls explain as to what this portion of the syntax means? Whats the dollar sign for?
"$item" "${item/.wav/}.mp3"

thanks,
007

PS:- I try to stay away from sed, since its a bit complicated to remember the characters and stuff.....

[ January 30, 2003: Message edited by: Agent007 ]

[flap]

$ is used to identify a variable. In this case $item will refer to each wav file returned by the 'find' command.
The "${item/.wav/}.mp3" bit is used to specify the output filename. This removes ".wav" from the filename and then adds ".mp3" onto the end.

[beltorak0]

sure man.  glad it worked   .

Until Stryker posted his answer tho, i coudn't figure out how to get around the whole "for FILE in *" problem....  ty Stryker.

[Stryker]

quote:Originally posted by beltorak:
sure man.  glad it worked       .

Until Stryker posted his answer tho, i coudn't figure out how to get around the whole "for FILE in *" problem....  ty Stryker.

no problem man, that's what i'm here for. it was strange too, this was posted just a few hours after i was just done learning some of the sed command and the while command.

and yes, i was thinking you were going from mp3 to wav, my mistake, but you get the idea.

[ January 31, 2003: Message edited by: Stryker ]

[LorKorub]

Speaking of going from *.mp3 to *.wav, I decided to play:

for i in `find -name "*.mp3"`; do mpg123 -w "${i/.mp3}.wav" $i; done

This is a good thread. We need to archive this one.

[Calum]

hey! that looks like a nice simple script! i found another script to do this but it didn't work  
i've been using xmms to do this job but will try that now you posted it. thanks!

[LorKorub]

OK..now I have I question.

I have a shitload of *.mp3 files that are saved on CDROMs that I want to relocate to a single directory on my Linux drive. The files are sorted in their respective directories by band-names, and most of them have spaces (They are from my windoid days on Kazaa and Napster.) I cannot use the tr command, as they are on a read only filesystem, and I can't copy them to a temp directory, as bash gives me a bunch of error messages pertaining to the spaces in the files.  

Is there a workaround to this?

[flap]

Just do

find /cdromdirectory -name '*.mp3' | while read item; do cp "$item" /destinationdirectory; done

[LorKorub]

Nice... that was quite easy. Like always, I am making things 100x more difficult than they should be. Here I am on the friggin' bash man page all night....

Thanks flap...

[Agent007]

I just envy u guys who r expert with BASH...    How do I get started? Are the man pages enough?

some pointers to a newbie wud be a gr8 help!

thanks,
007

[flap]

http://www.tldp.org/LDP/abs/html/index.html

http://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=bash+tutorial