annotate arrows/dsp/spec_bench2.m @ 61:eff6bddf82e3 tip

Finally implemented perceptual brightness thing.
author samer
date Sun, 11 Oct 2015 10:20:42 +0100
parents 672052bd81f8
children
rev   line source
samer@0 1 % spec_bench2 - Arrow for doing spectral-based processing (no phase)
samer@0 2 %
samer@0 3 % spec_bench ::
samer@0 4 % N:natural ~'frame size',
samer@0 5 % M:natural ~'hop size'
samer@0 6 % arrow( {[dftbins(N),W]}, {[dftbins(N),W]}, S1), ~'arrow to process power spectra',
samer@0 7 % -> arrow( {[N,W]}, {[N,W]}, pair(pair(empty,S1),empty)) ~'total arrow'.
samer@0 8 %
samer@0 9 % This splits a signal into magnitude and phase spectra (using Hanning analysis window),
samer@0 10 % applies supplied arrows to the two branches, and then recombines them using an inverse
samer@0 11 % DFT and overlap-and-add to compose the output signal.
samer@0 12 function o=spec_bench(N,M,a)
samer@0 13 o=apowspec(hanning(N))*a*aspecsyn(N,M,@hanning);
samer@0 14 end