Hi Glen, > /* update mean amplitude estimate for LDPC decoder scaling */ > > ofdm->mean_amp = 0.9f * ofdm->mean_amp + 0.1f * sum_amp / > (ofdm->rowsperframe * ofdm->nc);
Yes, that's used for LDPC decoding so could be related. It would also be useful to have a repeatable unit test to explore the issue, e.g. a repeatable fading profile running with the command line version of the modem. Cheers, David _______________________________________________ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2