[SoX-users] Keep multiple files AND merge into one file

[Ryan D. <ry...@ju...>]

Hi folks,
I have a dir which mp3s are regularly added to one at a time. Each time an
mp3 is added, I would like to copy it onto the end of another file while
keeping the separate files.

Ex:
1.mp3 shows up
  - add to end of master.mp3
2.mp3 shows up
  - add to end of master.mp3
3.mp3 shows up
  - add to end of master.mp3

Note that the files are added to the dir *one at a time*. So the first to
show up is 1.mp3, which I would then run `sox 1.mp3 master.mp3` and the
content of 1.mp3 would be copied to master.mp3. But then 2.mp3 shows up and
I run `sox 2.mp3 master.mp3` and it overwrites master.mp3 with only the
content of 2.mp3.

Is there any way to simply add each new file (one at a time, as they show
up) to the end of master.mp3 *without* overwriting the previous content of
the other mp3 files?

Thanks,
Ryan