> Intensity, though, can be applied starting at any scalefactor band > in the spectrum; it is then used for all higher bands as well. The trick to > optimizing intensity is picking that band, which I'm calling the 'intensity > threshold' for lack of any other term.
I was naively thinking that determining the right intensity position for each subband could also be a problem. > BTW, I was wrong about the number of iterations above. It would be 13 or 21 > at maximum, depending on whether the frame is long or short block encoded. I'd think that even "brute force" would be a lot less than 21 iterations to find isl (is limit). The first naive idea would be to test from up(sfb21) to bottom. At each sfb, test if "shape" of left channel is similar to "shape" of right one, just with a different scaling. If it's similar, then it could use is, and continue testing downward. I'm quite sure you would stop on average way before testing even 50% of subbands. But the real question is how do you determine if left "shape" is similar to right shape? Btw I think that in case of similar shapes with different scales, if we know this scale, it could be used easily to deduce is position. ---- Gabriel Bouvigne www.mp3-tech.org _______________________________________________ mp3encoder mailing list [EMAIL PROTECTED] http://minnie.tuhs.org/mailman/listinfo/mp3encoder
