h=framemul(f,Fa,Fs,s);
| Fa | Analysis frame |
| Fs | Synthesis frame |
| s | Symbol |
| f | Input signal |
| h | Output signal |
framemul(f,Fa,Fs,s) applies the frame multiplier with symbol s to the signal f. The frame Fa is used for analysis and the frame Fs for synthesis.
In the following example Gabor coefficients obtained through the DGT of pink noise are multiplied by the symbol batmask before resynthesis. The result of this operation is an output signal h that is constructed through a Gabor expansion of the modified coefficients.:
f = pinknoise(400);
a = 10;
M = 40;
[Fa, Fs] = framepair('dgt', 'gauss', 'dual', a, M);
s = framenative2coef(Fa, batmask);
fhat = framemul(f, Fa, Fs, s);
figure(1);
plotframe(Fa,frana(Fa,f),'clim',[-100,-20]);
figure(2);
plotframe(Fa,s,'lin');
figure(3);
plotframe(Fa,frana(Fa,fhat),'clim',[-100,-20]);