Re: [Discuss-gnuradio] RTP block / Opus vocoder

[Adrian Musceac]

>
> We would like to combine Opus/CODEC2 and RTP multicast to have stereo field
> audio. The sources of the audio appear at different points in the stereo
> field, so that a roundtable conversation feels more like a roundtable, or
> so that two streams from two different SDRs are distinct.
>

Hi Michelle,

This is very interesting to me. I did some work with Codec2, Opus and
GNU Radio myself.
I'm curious though: RTP and UDP + IP encapsulation, isn't that a bit
too much overhead for a low bitrate codec like Codec2? A 40 msec audio
frame encoded with Codec2 1400 is only 48 bits, so the encapsulation
overhead is quite large. How does that affect low SNR performance?

Regards,
Adrian YO8RZZ