find power of signal
Hi, how do i find total power of signal from a wav file and display it on axes ? I currently only have this. [myRecording,fs] = audioread('filename.wav',[1,2*8000]); %fs = sample rate Nsamps = length(myRecording); t = (1/fs)*(1:Nsamps); %Prepare time data for plot %Do Fourier Transform y_fft = abs(fft(myRecording)); %Retain Magnitude y_fft = y_fft(1:Nsamps/2); %Discard Half of Points f = fs*(0:Nsamps/2-1)/Nsamps; %Prepare freq data for plot %Plot Sound File in Time Domain plot(handles.normalLies,t, myRecording) xlabel(handles.normalLies,'Time (s)') ylabel(handles.normalLies,'Amplitude') %Plot Sound File in Frequency Domain plot(handles.fttLies,f, y_fft) xlim(handles.fttLies,[0 20]) xlabel(handles.fttLies,'Frequency (Hz)') ylabel(handles.fttLies,'Amplitude')
Kshitij Singh answered .
2025-11-20