mapsound

mapsound — Plots a sound map

Calling sequence

mapsound (w,dt,fmin,fmax,simpl,rate)

Parameters

dt,fmin,fmax,simpl,rate : scalars. default values dt=0.1,fmin=100,fmax=1500,simpl=1,rate=22050;

Description

Plots a sound map for a sound. It does FFT at time increments dt. rate is the sampling rate. simpl points are collected for speed reasons. fmin and fmax are used for graphic boundaries.

Examples



// At first we create 0.5 seconds of sound parameters.
t=soundsec(0.5);
// Then we generate the sound.
s=sin(440*t)+sin(220*t)/2+sin(880*t)/2;
[nr,nc]=size(t);
s(nc/2:nc)=sin(330*t(nc/2:nc));
mapsound(s);