I have recorded a voice with sampling frequency and other parameters. Now, I want to find out the power spectral density for that. In order to find that, should I use the pwelch function, or is there any other technique?
I'm writing the code below:
disp('Start recording'); %To start speaking
recordblocking(voice,5); %Stops the recording after 20 seconds
disp('End recording'); %Message displays end of recording
a= getaudiodata(voice); %Gets the data of voice signal and stores in a variable 'a'
%plot(a); %Plots a graph of the voice signal
title('Audio signal'); %Title of the voice signal
xlabel('time in sec'); %X-axis