[Asterisk-Users] how does one get the very best quality output?

[Clayton Smith]

Hi, i'm trying to send some songs over via asterisk, so i'm trying to 
get the very best quality possible

i've been using gsm, using sox with a rate of 8000, single channel, 
resampled q1,  and got some good results, but i'm wondering if there is 
at all a better way

I'm using voicepulse, which supports
    *   GSM
    * G.711ulaw
    * G.711alaw
    * ADPCM
    * ILBC
    * SPEEX


any of those better to send music through

i've also maxed out my iax adding


jitterbuffer=yes
maxjitterbuffer=100
minjitterbuffer=50

Any help or suggestions would greatly be appreacted
Thanks