On Tue, 2009-04-14 at 11:05 -0700, Justin Smith wrote: > If you want to normalize amplitude, the rezound algorithm works just > fine, if you want to normalize loudness, then you want to use jamin, > or some other program that processes different frequency ranges > separately, since the human ear does not have a flat frequency > response, loudness is frequency dependent. In regards to measuring in > terms of RMS or not, someone else will have to address that. I wonder if this explains some commercial CDs recently that seem a bit light on bass. Is it the case that the bass frequencies take up lots of amplitude for not much impression of loudness so if you cut them you can then raise the level of the mid-range that will then make the whole thing seem louder? Back to the original question, is the intention to try to make a track you are working on louder, in which case a compression tool like jamin would seem like the right approach, or is it to try to get commercially mastered tracks to play in sequence at the same apparent loudness in which case what is needed is a model to score tracks for their perceived loudness so the louder sounding ones can have their amplitude reduced to match the less loud? Steve. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
