Hey Erich,
Thanks again for the reply. Here is the call I use to generate file 92 for example:
sox -V -t raw -r 11025 -e signed -b 8 -c 1 sound0000 -r 44100 sound92.wav vol 1 speed 0.93636363744736 pad 12.966666666667 10.966666666667 trim 0 13.033333333333
Here’s the result:
https://dl.dropboxusercontent.com/u/4215526/sound92.wav
I don’t know if it could be part of the problem, but here is the source effect file “sound0000”, which is not a wav but just raw samples:
https://dl.dropboxusercontent.com/u/4215526/sound0000