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Record your voice signal in mp3  or .dat format. Write a Matlab program to produce an echo signal....

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Electrical Engineering


Record your voice signalin mp3  or .dat format. Write a Matlab program to producean echo signal. Critically analyze the system and find out thevalue of delay in milli seconds required to get a good echo effecton the recorded voice. Demonstrate the results by playing thesignal using sound command in Matlab.


I need command in matlab from recordedsignal to eco-signal and delay and play

Answer & Explanation Solved by verified expert
4.2 Ratings (805 Votes)

Hello,
          Please find the answer attached as under. Please give a thumbs up rating if you find the answer useful! Have a rocking day ahead!

NOTE: i do not have access to your recorded voice sample, hence I have written the code for a stored sample:

************ Matlab Code ************

load handel;
%to add an echo after 1s (with amplitude=0.5, phase=pi/3.5)
echo_vector=[1                  zeros(1,Fs)     ...
             0.5*exp(1i*pi/3.5) zeros(1,1.5*Fs) ...
             0.5*exp(1i*1.2*pi)                   ];
yecho=real(conv(y,echo_vector));
sound(yecho,Fs);

*********** End of Code *****************

*****************************************************************
PS: Please do not forget the thumbs up!
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