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annotate dsp/dftmap.m @ 61:eff6bddf82e3 tip

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Finally implemented perceptual brightness thing.
author samer
date Sun, 11 Oct 2015 10:20:42 +0100
parents c3b0cd708782
children
rev   line source
samer@32 1 function map=dftmap(edges,NFFT)
samer@32 2 % dftmap - fmap, standard usage for DFT
samer@32 3 %
samer@32 4 % dftmap ::
samer@32 5 % [[L]->0--0.5] ~'normalised frequencies of edges',
samer@32 6 % N:natural ~'DFT size'
samer@32 7 % -> [[L+1,dftbins(N)]].
samer@32 8
samer@32 9 map=as_fmap(NFFT*edges,dftbins(NFFT));