[Speex-dev] Fixed-point AGC, snapshot
thorvald at natvig.com
Thu May 22 03:07:06 PDT 2008
Sorry for this being late. Anyway, this has an AGC that works in fixed
point. The calculation of the gain is changed slightly even in floating
point, as loudness_accum is no longer pow()'d, which affects the initial
frames slightly. It gives results in fixed point, but no extensive
verification has been done, and many of the _ctl functions still do not
work, as they need to convert back and forth to decibel scale. I think
perhaps the best solution there is to have the state struct store the
decibel value as is done for noise suppression levels etc.
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