g723 to g711 )over RTP

antonionola — Mon, 26 Mar 2007 11:37:05 GMT

Does anybody know how to traslatea RTP g723 toRTP g711

Can anyone help me? I examined Speech Coding Sample G.726 but I don't really understand a few thing. Is it corrected the following code _

...........

USC_PCMStream in, outg711;
USC_Bitstream out;

in.pBuffer = tmpInputBuff; /*input RTP Payload*/
pInfo.params.direction = 1; /* Direction: Decode */
/* G723 -> wav */
if(USC_NoError != USC_G723_Fnxs->Decode (hUSCEncoder, &in, &out)) exit(6);
pInfo.params.direction = 0; /* Direction: encode */
/* wav -> G711 */
if(USC_NoError != USC_G11_Fnxs->Encode (hUSCDecoder, &out, &outg711)) exit(6);
send(....,...,outg711.pBuffer);

Thanks in advance,

Antonio

Re: g723 to g711 )over RTP

ligoban — Mon, 26 Mar 2007 12:08:34 GMT

You can just simply encode your PCM (that you get after decoding g.723) to the g.711. Use IPP for this purpose. Also it is not difficult to find the source code of the g.711 alaw/mulaw and make this encoding without using IPP.

topic Re: g723 to g711 )over RTP in Intel® Integrated Performance Primitives

g723 to g711 )over RTP

Re: g723 to g711 )over RTP