I didn't know that. Thanks. On 10/31/07, Tzafrir Cohen <[EMAIL PROTECTED]> wrote: > > On Tue, Oct 30, 2007 at 06:54:45PM +0200, Eran Levy wrote: > > Hi, > > Any idea how to convert .MP3 to .GSM? I could not find a good > application. > > I figure you want this for Asterisk. Almost all audio codecs on Asterisk > (except g722) use a phone quality audio: 8000Hz, 16bit samples, mono. > > MP#s you'll find are typically of much higher quality. Hence > down-sampling the MP3 file to even a .wav file of the same quality will > usually generate a file of comparable size to the original MP3 file, > rather than the huge size you'd expect. > > gsm and other compressed codecs will generate smaller files. But you're > also degregating audio quality . > > Anyway, here's a little script to help you: > > > #!/bin/sh > > # make_ast_wav: convert sound files to "wav" files Asterisk likes. > # Usage: make_ast_wav file1 [file2 ..] > # files should have extensions sox identifies (.mp3 , .ogg, etc.) > # downsampling .wav files is not supported. > for src in "$@"; do > base=`echo $src | rev | cut -d. -f2-| rev` > sox $src -w -c 1 -r 8000 $base.wav > done > > > -- > Tzafrir Cohen | [EMAIL PROTECTED] | VIM is > http://tzafrir.org.il | | a Mutt's > [EMAIL PROTECTED] | | best > ICQ# 16849754 | | friend > > ================================================================= > To unsubscribe, send mail to [EMAIL PROTECTED] with > the word "unsubscribe" in the message body, e.g., run the command > echo unsubscribe | mail [EMAIL PROTECTED] > >
-- Thanks, Eran
