Can Opus encode speech below 6 kbit/s like Codec 2? 2017-08-12 20:30:52 Just curious. Some modes of Codec 2 seem very simple, seemingly enough for CELT mode to replicate. Basically, one needs to be able to generate white noise (possible), periodic signals (sort of possible by filtering white noise using CELT's pitch postfilter) and to adjust signal power per band (of course possible). Am I missing something?