[asterisk-users] play wav file

[Jerry Geis]

I have an mp3 that is 128K, 44.1K stereo.
I convert that to wave 16 bit, stereo, 44.1K

The "sound" alike at this time.

I want to play them (not just over my sound port) but through asterisk
on select devices/machines that are also running asterisk over the 
Console/dsp.

I converted the wave file to 8K, mono and it doesn't sound very good, I 
am also
using 1.4.43 and ulaw,alaw,gsm allowed.

What format will give me the best sounding output and how do I get that?
Do I need somethink like g722?

Thanks,

Jerry