Since I needed sox for another project, and the only win32 binaries don’t have mp3 support, off we go to make it.
I followed the directions at the ffmpeg for windows wiki. The wiki gives directions that any one who can read this can follow. Then added updates for both msys and mingw.
Also downloaded the source for nasm, sox, lame and libsndfile
did the ./configure –prefix=/mingw && make && make install && make install ~/export dance and had my binaries. Copied the ~/export/bin folder to my xp path and was done with that.
So now can trim silence from sound files and also have a mp3 encoder too. Yoozaa.