GPESoundbite Conversion to MP3
The gpe-soundbite app encodes speech using the GSM 06.10 codec (same as cell phones?).
Grab the open source GSM library from http://kbs.cs.tu-berlin.de/~jutta/toast.html (or emerge gsm if you're using Gentoo). Compile it on your desktop.
Copy gpe-soundbite's .gsm output file to your desktop. Run:
$ tcat -l < thefile.gsm > thefile.l
This will give you a 16-bit mono PCM file at 16000 Hz. You can convert it to an MP3:
$ lame -r -x -s 16 --bitwidth 16 -m m --vbr-new thefile.l thefile.mp3
The resulting mp3 will be a bit less than twice the size of the original .gsm file.
