view extra/lab5.m @ 13:844d341cf643 tip

Back up before ISMIR

clear all
%1.1
%% Piano sound

% hfile = '4192__RealRhodesSounds__D4.wav';
% [x3, Fs3, nbits3, readinfo3] = wavread(hfile);
% %sound(x3, Fs);
% y = sinemodel_(x3, hamming(513)', 1024, 100,-35);
% wavwrite(y, Fs3,'__RealRhodesSounds_D4.wav');


%% 2.1 Compute the magnitude values on the to of the main lobe
% loc=0;
% mag=0;
% 
% binremainder = round(loc)-loc;
% %Blackman-Harris 92dB
% lb = [binremainder-4:binremainder+4]'; % main lobe (real value) bins to read
% lmag = genbh92lobe(lb,1024)*10.^(mag/20); % lobe magnitudes
% figure
% plot(lmag);


%% 2.2 Compute a spectrum of size N from a series of sinusoidal values

% Y = genspecsines([10.3, 20.6, 30.9], [-10, -13, -16], [0, 0, 0], 1024);
% 
% %inverse fft
% y=fftshift(real(ifft(Y)));
% plot(y);
% 
% %the sinusoids 
% Y1 = (-10)*exp(1*i);y1=ifft(Y1);
% Y2 = (-13)*exp(1*i);y2=fftshift(real(ifft(Y2)));
% Y3 = (-16)*exp(1*i);y3=fftshift(real(ifft(Y3)));
% %add the sinusoids in the time domain
% ytime = y1+y2+y3;
% figure
% plot(y1);

%% Fugue

% hfile = '22125__Connum__memento_to_Bachs_fugue_II.wav';
% [x3, Fs3, nbits3, readinfo3] = wavread(hfile);
% %sound(x3, Fs);
% y = sinemodel(x3, hamming(2001)', 1024, -60);
% wavwrite(y, Fs3,'fugue1.wav');

% %% Soprano
% 
% hfile = '30084__HerbertBoland__FemalePhrase1.wav';
% [x3, Fs3, nbits3, readinfo3] = wavread(hfile);
% %sound(x3, Fs);
% y = sinemodel(x3, hamming(2001), 1024, -50);
% wavwrite(y, Fs3,'female1.wav');

%% Soprano

hfile = '32848__Quilt__Quilty_s_Old_School_Piano.wav';
[x3, Fs3, nbits3, readinfo3] = wavread(hfile);
%sound(x3, Fs);
y = sinemodel_(x3, hamming(2001)', 1024, -50);
wavwrite(y, Fs3,'piano1.wav');