( c) From each plot, you will find two pitches and please tell what number was dialed based on the definitions provided in the below table. Please answer what phone number was dialed?
And this is my code, which can only be the answer of (a)(and the I'm not sure if this answer is right)
[y, Fs]= audioread('PhoneSound.wav');
filename= 'PhoneSound.wav';
audiowrite(filename, y,Fs);
clear y Fs
[y, Fs]= audioread('PhoneSound.wav');
sound(y, Fs);
plot(y, Fs);
but the fig looks strange……
the attachment is the zip of the audio
Best Answer