Program to batch change mp3 bitrates?

krathis · 22nd May 2001, 23:00

Hi,

I have a dir full of MP3s all recorded at variable bitrates. Ive been looking around for a while and cant find a program that will take a directory and re-encode the mp3 to a specified (uniform) bitrate. Most of the programs I have seen, will convert a directory of WAVs but not MP3s, and converting them back to WAVs seems like a waste.

Anyone know of a program that will do a batch bitrate conversion on MP3s?

Thanks!

Bob

Tom · 22nd May 2001, 23:16

Bob,
Take a look at WinLama+: http://www.oddsock.org/tools/winlama+/
I think it can do batch mp3 -> mp3 for directories.

Tom

Sound Selecta · 22nd May 2001, 23:25

I know in Music Match I can choose a directory and change the bitrate of all the Mp3's in that dir and change them to a different bit rate into a seperate dir.
So it goes from an MP3 >> MP3
I havent tired it with files of different bit rates. The only thing is the quality of Music Match sound is not as good as others software but it is pretty fast.

arek@soundselecta.com

krathis · 22nd May 2001, 23:29

Thank you both very much for the info. That oddsock guy has some fantastic tools. THanks.

I'll also check out Music Match as it may be easier to use.

Again,
thank you.

-Bob

Raaf · 23rd May 2001, 11:41

Razorlame is a front-end for the LAME encoder that can handle this.

Raaf

djfred · 23rd May 2001, 13:40

MP3 workshop is also a good program for all sorts of conversion (wav-MP3, mp3-mp3 with different bitrates, ...) I strongly recommend it.
It can also normalize your song together if you wish, a feature very usefull for people that napsterize lots of stuff and it comes in at various levels.

Keep in mind, if you increase the bitrate of an MP3 you won't increase it's quality. You have to increase the bitrate when you rip it. Any program cannot create missing information. What it will do is a simple resampling, of a low quality wave file, so that you'll have a better representation of this low quality wave, taking up more space on your hard drive. (I believe each time you resample, you loose a little bit of quality as well, but that should be minimal and I might be mistaken).

But then again, you might just want to reduce your sampling rate, in which case, you'll lose quality but also take up less room on your hard drive.

22nd May 2001, 23:16	#2
Tom Moderator Join Date: Apr 2000 Posts: 4,491	So we meet again. Bob, Take a look at WinLama+: http://www.oddsock.org/tools/winlama+/ I think it can do batch mp3 -> mp3 for directories. Tom

23rd May 2001, 13:40	#6
djfred Junior Member Join Date: May 2001 Posts: 16	MP3 Workshop MP3 workshop is also a good program for all sorts of conversion (wav-MP3, mp3-mp3 with different bitrates, ...) I strongly recommend it. It can also normalize your song together if you wish, a feature very usefull for people that napsterize lots of stuff and it comes in at various levels. Keep in mind, if you increase the bitrate of an MP3 you won't increase it's quality. You have to increase the bitrate when you rip it. Any program cannot create missing information. What it will do is a simple resampling, of a low quality wave file, so that you'll have a better representation of this low quality wave, taking up more space on your hard drive. (I believe each time you resample, you loose a little bit of quality as well, but that should be minimal and I might be mistaken). But then again, you might just want to reduce your sampling rate, in which case, you'll lose quality but also take up less room on your hard drive.

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22nd May 2001, 23:00	#1
krathis Junior Member Join Date: Feb 2001 Posts: 9	Hi, I have a dir full of MP3s all recorded at variable bitrates. Ive been looking around for a while and cant find a program that will take a directory and re-encode the mp3 to a specified (uniform) bitrate. Most of the programs I have seen, will convert a directory of WAVs but not MP3s, and converting them back to WAVs seems like a waste. Anyone know of a program that will do a batch bitrate conversion on MP3s? Thanks! Bob

22nd May 2001, 23:25	#3
Sound Selecta Senior Member Join Date: May 2001 Posts: 183	I know in Music Match I can choose a directory and change the bitrate of all the Mp3's in that dir and change them to a different bit rate into a seperate dir. So it goes from an MP3 >> MP3 I havent tired it with files of different bit rates. The only thing is the quality of Music Match sound is not as good as others software but it is pretty fast. arek@soundselecta.com

22nd May 2001, 23:29	#4
krathis Junior Member Join Date: Feb 2001 Posts: 9	Thank you both very much for the info. That oddsock guy has some fantastic tools. THanks. I'll also check out Music Match as it may be easier to use. Again, thank you. -Bob

23rd May 2001, 11:41	#5
Raaf Junior Member Join Date: May 2001 Posts: 3	Razorlame is a front-end for the LAME encoder that can handle this. Raaf