main3_dynamicrange.m

Spectrogram function in matlab [For speech]

clc;
close all;
clear all;

[inp1 Fs1 nb1]=wavread('FF1.wav');

segsize=128; overlap=segsize; PREEMPH=1;  CLR=0; XL=1; YL=1; 

figure;
SCF=0; DR=-20; subplot(411);Spectrogram_V6(inp1,Fs1,segsize,overlap,PREEMPH,SCF,DR,CLR,XL,YL,'(a)');
SCF=0; DR=-40; subplot(412);Spectrogram_V6(inp1,Fs1,segsize,overlap,PREEMPH,SCF,DR,CLR,XL,YL,'(a)');
SCF=0; DR=-60; subplot(413);Spectrogram_V6(inp1,Fs1,segsize,overlap,PREEMPH,SCF,DR,CLR,XL,YL,'(a)');
SCF=0; DR=-80; subplot(414);Spectrogram_V6(inp1,Fs1,segsize,overlap,PREEMPH,SCF,DR,CLR,XL,YL,'(a)');


figure;
SCF=-0.6; DR=-80; subplot(411);Spectrogram_V6(inp1,Fs1,segsize,overlap,PREEMPH,SCF,DR,CLR,XL,YL,'(a)');
SCF=-0.4; DR=-80; subplot(412);Spectrogram_V6(inp1,Fs1,segsize,overlap,PREEMPH,SCF,DR,CLR,XL,YL,'(a)');
SCF=-0.2; DR=-80; subplot(413);Spectrogram_V6(inp1,Fs1,segsize,overlap,PREEMPH,SCF,DR,CLR,XL,YL,'(a)');
SCF=0;    DR=-80; subplot(414);Spectrogram_V6(inp1,Fs1,segsize,overlap,PREEMPH,SCF,DR,CLR,XL,YL,'(a)');