On Sep 15 14:29:55, digitaltoast@xxxxxxxxx wrote: > Basically: up to 20 input files in one directory, some may be stereo, > some mono, some at different bitrates OR FREQUENCIES, all will be mp3. > > I'd like the output file to be a mono mp4 file, optimized for speech > and size, but able to handle occasional music. Do you mean mp3 (as opposed to mp4)? This seems to be a scripting excercise rather than a SoX problem. Something like for f in *.mp3 ; do sox -c 1 -r 48000 -b 16 $f out.$f.wav remix - ; done sox out.*.wav output.mp3 Obviously, replace the format parameters with what you want to have. > All the guides I've found don't seem to handle the case where some > files might be 44.1 and some might be 22Khz. sox -r The manpage is better than "all the guides". > (Bonus - same as above but with additional mp4 (m4a) output of > possible!. Oh, and normalizing all the tracks to about the same ideal > db if possible?!?) SoX does not produce mp4 or m4a files. See the norm effect for normalization. > Sorry, I've looked, I really have. Maybe I'm not using the right > search term, but I've google it, I promise! man sox Jan ------------------------------------------------------------------------------ _______________________________________________ Sox-users mailing list Sox-users@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/sox-users
