On Tue, Jul 27, 2010 at 11:57 AM, Ralf Mardorf <[email protected]> wrote: > On Tue, 2010-07-27 at 11:10 -0500, Charles Henry wrote:
>> Because psychoacoustics just hasn't been defined in a way to make hard >> numbers stick. The tendency in psychoacoustic experimental design is >> to use discrete conditions (which gives better experimental power) in >> order to show that an effect exists. But this way, any given >> experiment can't produce results that cover the whole space. >> Generalization and extrapolation are limited. > Masking theories used by audio codecs to compress audio signals don't > work for people who are trained in listening, e.g. MP3 at any rate is a > PITA. Trained people (here where I do live) do always here a loss in > blind tests. It's a problem for current models to accomplish compression without losing some part of the audio quality. Do you think there could be a better (or best) basis for reducing the complexity and bitrate of sound? or is it just plain impossible? > Before the brain does "math", are there any other senses involved to the > interpretation of the input given by the ears? (Btw. I'm sure that math > is just part of nature and can't describe nature, because it's just a > part.) > > Regarding to the topic that there are two sound sources and you are > thinking about a relation, try to imagine people who are autistic or who > are 'normal', but having a panic attack, or try to remember a situation, > when you barely were able to escape an accident. The filtering is > completely different. Everybody of us is able to focus allegedly masked > "things". I agree--but I'll put a little more on the table here. A strong model is able to describe not only the big trends but the contextual, situational, and personal sources of variation. A model of that kind of scope is very far off, in my mind. I would be happy to have a weaker model that generalizes well first. > Perception, the interpretation of the input by all senses will change, > regarding to the context, for audio even regarding to the tilting of > your head to the body. > > Recordings and digital audio virtualization always has the lack of the > experienced context. If it should be possible to completely gather > everything of nature by math for specific situations, there still will > be the context, a situation were everybody brains is able to count the > peas that drop to the ground, after the glass of peas fall down to the > ground. > > Remember your own experiences when you had or nearly had an accident. > Time seemed to be slower and silent, but important sounds (regarding to > your survival) become loud, while loud, but unimportant sounds become > silent. > > _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/listinfo/linux-audio-dev
