why some wav file can successfully be produced a gmm file, but some wav file cannot? about voiceid HOT 4 OPEN

Hello, the waves that surely work have these specs "RIFF (little-endian) data, 
WAVE audio, Microsoft PCM, 16 bit, mono 16000 Hz". We will try to make the tool 
more flexible. 
Notice that if you add a model for a speaker already in the db (same name), its 
gmm file will be updated and not created another one.
If you want you can send us wave samples that do not work.
If you get any explicit error, please let us know.

I have tried and now they work. Thanks for your reply.

By the way, what kind of video file can be accepted in voiceidplayer gui? I 
have downloaded mp4 file from youtube but it doesn't work.=) 

I'm glad I was helpful!
For the GUI maybe is an installation issue. The video formats accepted are 
those of mplayer. We mostly use mp4 file format. Can you specify the error? So 
we can give you a better answer ;)

If the tool can support mono 8000 Hz, voiceid would be integrable with asterisk.