Hi Osman,
To compute the magnitude and phase response of your voice data using FFT in MATLAB, you can follow these steps:
- Record and Get Audio Data: You have already done this using "audiorecorder" and "getaudiodata".
- Compute the FFT: Use the "fft" function in MATLAB to transform your audio signal from the time domain to the frequency domain.
- Calculate Magnitude and Phase: Use the results of the FFT to compute the magnitude and phase.
Here's a sample code:
% Insert code to Record and get audio data
N = length(myrec); % Length of the audio signal
Y = fft(myrec); % Compute the FFT
f = (0:N-1)*(44100/N); % Frequency vector
% Only take the first half of the FFT result (positive frequencies)
Y = Y(1:floor(N/2));
f = f(1:floor(N/2));
magnitude = abs(Y); % Magnitude response
phase = angle(Y); % Phase response
% Insert code to Plot magnitude and phase response
You can read more about the "fft()" MATLAB function by going through the documentation link:
I hope it helps!
