Wave Audio File Specification

[the-master-student]

Dear @tayler6000 and fellow users,

I have the following VoIP setup: I have a caller, the pyvoip client and an asterisk server. I want to play a wav file via the writeAudio(), that will be recorded by the asterisk server. The extension on asterisk is pretty straightforwards:

exten => 123,1,Answer()
same => n,Wait(1)
same => n,Record(/etc/asterisk/call-${CALLERID(num)}:wav,0,0,k)
same => n,Hangup()

The recorded file is then downloaded by the client via socket. The main goal is to calculate pesq values comparing the reference audio and the downloaded/ recorded audio. What are the specifications of the wave file in order to transmit the wav file uncompressed. I expect to reach a pesq value of >4,4 if the client and the server are connected via LAN.

Would appreciate any tips and thank you in advance.