i'm trying to get stream from microphone and send it over udp in rtp format (a-law,8 khz,mono) following the specification RFC3551.
I'm able to get microphone stream using waveIn class and send it to udp stream but the data format is not correct; i think the raw format is something like PCM 16 bit stream but i need a-law format to pass data to a porter device.
Is it possible to convert the waveIn class received bytes from pcm to a-law format in real time mode ? (i cannot save data to a file but i have to immediately send converted bytes to network) if yes...how ?
Did not find sample code...