Revision as of 21:41, 22 July 2008 by Agshah (Talk)

Fs = 44100; % Sampling Frequency in Hz

y = wavread('armstrong'); % Reads the armstrong.wav file specificed by a string file

wavplay(y,Fs); % Plays the armstrong.wav file at the specified sampling frequency


x = wavread('armstrongforward'); % Reads the armstrongforward.wav file specificed by a string file

wavplay(x,Fs); % Plays the armstrongforward.wav file at the specified sampling frequency


N = length(x); % Returns the length of vector x.

k = 1:1:N; % Creates an array

minus_k = N+1 - k; % Reverses the created array

z = x(minus_k);

wavplay(z,Fs); % Plays the reversal of armstrongforward.wav file


w = zeros(1,2.*N);

w(1:2:2.*N) = z(1:N);

wavplay(w,Fs); % Plays the slowed & reversed version of armstrongforward.wav file

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