> So I am wondering if it would not be possible to encode a > "end-of-stream" signal INSIDE the codec2 channel. For that, I would need > to know if there exist certain bitpatterns in a codec2 audio-stream that > should never be seen in a codec2 stream. We could use that then as a > "end-of-stream" marker.
There are certain illegal combinations but they also occur during bit errors. Also the codec 2 bit stream could change at any time. The demodulator can determine when the the transmitted signal has gone, we do that in FreeDV. >Anybody ideas of other information that could perhaps be carried as > inband information in a codec2 channel? What bitrate would it need? How > to encode it? The text channel in FreeDV uses 1 bit and 25 bits/s - David ------------------------------------------------------------------------------ Introducing Performance Central, a new site from SourceForge and AppDynamics. Performance Central is your source for news, insights, analysis and resources for efficient Application Performance Management. Visit us today! http://pubads.g.doubleclick.net/gampad/clk?id=48897511&iu=/4140/ostg.clktrk _______________________________________________ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2
