How I can take integration of sample data(y) in wave file i-e [y,Fs]=aud​ioread('fi​le.wav')?

syms a t

[a,Fs_section]=audioread('wasif.wav');

info=audioinfo('wasif.wav');

t=0:seconds(1/Fs_section):seconds(info.Duration);

t=t(1:end-1);

figure(1);

subplot(2,1,1);

plot(t,a);

xlabel('Time');

ylabel('audio signal')

W=fft(a);

L_name=info.TotalSamples;

P2_name=abs(W/L_name);

P1_name=P2_name(1:L_name/2+1);

P1_name(2:end-1)=2*P1_name(2:end-1);

f_section=Fs_section*(0:(L_name/2))/L_name;

figure(1);

subplot(2,1,2);

plot(f_section,P1_name);

title('single sided amplitud spectrum of y(t)')

xlabel('f (hz)');

ylabel('|p1(f)|');

%sound(a,Fs_name);

amplitudes_name = abs(a); % abs(a) is the amplitudes in an all-positive sense

max_a = max(abs(a)); % max is the highest amplitude.

[lower,upper] = bandwidth(a);

peak_value_a=max_a(1,1) ; % first value

Kf_name=(2*pi*lower*5)/peak_value_a;

M=int(a,-inf,t); % i want to take the integration of a from -inf to t.

[Image Analyst]

Why are a and t of type syms???

Also, you forgot to attach the audio file. Zip it up and attach it.

And why do you want to integrate an audio waveform? What does that mean?

[Abdur Raziq khan]

I want to generate a frequency modulated signal.