Displaying 1 result from an estimated 1 matches for "vorbis_floor3".
2007 Apr 23
1
Getting masked FFT data out of libvorbisenc
...ut I'm having problems actually
getting out the right data.
Basically, I'm looking in mapping0.c, dumping out the debugging information
that's already there. One of the most promising places seemed to be just
before floor1_fit, but it seems a bit odd:
http://home.samfundet.no/~sesse/vorbis_floor3.png
In particular, there's a _lot_ of energy in the treble, where I'd expect
there to be almost none. I don't know very much about the internals of Vorbis
(nor psychoacoustics in general, I'm afraid), but it seems to be as if the
floor is a rough copy of the FFT _plus_ the tone mas...