How do i read audio and include it in my function?

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Farah Hani
Farah Hani 2020-11-20
回答： Nora Khaled 2020-11-20
i need to plot a graph that shows
y=y1+1×r(t)
𝑦1=sin(2𝜋𝑓𝑡+𝜋/4)
r(t): read from audio file
but my problem is i don't know include the r(t) into my program.
the program i know so far is
fs=1000;
t=0:1/fs:1;
f=440;
y=y1+1*rt
y1=sin(2*pi*f*t+pi/4);
sound(y,fs)
N=1+0.1*fs;
n=1:N;
plot(t(n),y(n))
xlabel('Time(s)')
ylabel('Amplitude')

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回答（1 个）

Nora Khaled
Nora Khaled 2020-11-20
check out this function
[y,Fs] = audioread(filename)
it reads data from the file named filename, and returns sampled data, y, and a sample rate for that data, Fs.

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