[Discuss-gnuradio] Timestamping baseband samples

[Benny Alexandar]

Hi All,

In Broadcast receiver where the RF samples are received on AIR and channel decoder does the demodulation of digital radio symbols, and extracts the compressed audio data. This is then fed to an audio decoder to decode the audio. After decoding the uncompressed audio has to be played out. 

I would like to implement the jitter buffer, by having time stamps. So my question is where to do the timestamping, the timestamp put after audio decoding will be jittery because of variable audio content and compression effects. So the best place is to put at the RF input when baseband samples are buffered using DMA, this then can be corrected for clock recovery and use it while sending out audio.  

Any suggestions on this approach.

-ben