>Most broadcasters are now specifying mandatory loudness targets for source >material, which is usually supplied as a target integrated loudness value and >a target maximum true peak. Loudness normalization is easy for files with >sufficient headroom for linear gain adjustments, difficult for files with not >enough headroom, and even more difficult for live streams – this filter >handles all these situations. The loudnorm algo is basically a loudness-tuned >AGC which was designed to honor local dynamics, followed by a look-ahead true >peak limiter. Using normal parameters the result is usually imperceptible, >even with very dynamic source material such as classical music. This filter >should be a major boon to broadcasters and digital distribution people, since >the only software currently available that does this kind of thing is >commercial, and for the most part very expensive (Minnetonka, Skylark, Nugen, >etc.)
+1 This is a very important and expected feature for broadcasters, I support that too! Nicolas _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
