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| author | Nathan Caldwell <saintdev@gmail.com> | 2010-10-27 05:54:44 +0000 |
|---|---|---|
| committer | Anton Khirnov <wyskas@gmail.com> | 2010-10-27 05:54:44 +0000 |
| commit | 4df5aebb811aac306751f42ccf7db8398161604e (patch) | |
| tree | 02bc6ec7d921c32e197f27b5dbb385c94b1ef016 /doc/snow.txt | |
| parent | eafadadaf502560d1d3c2a1cb8e8cb9991221e14 (diff) | |
| download | ffmpeg-4df5aebb811aac306751f42ccf7db8398161604e.tar.gz | |
aacenc: Fix threshold-in-quiet calculation in the 3GPP psymodel.
Removing the modification vastly improves quality (at a slight bitrate
cost) for some samples. castanets.wav is a good example. The closest
equivalent I see to the modification in the 3GPP spec is a similar
modification (over a specific frequency range) when TNS is used.
This also changes the threshold-in-quiet calculation to match the
3GPP spec.
patch by Nathan Caldwell saintdev (at) gmail
Originally committed as revision 25588 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'doc/snow.txt')
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