Getting a warning with audiowrite ( audiowrite>clipInputData)

Question

carine 2023-6-14

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1982994-getting-a-warning-with-audiowrite-audiowrite-clipinputdata

评论： Walter Roberson 2023-6-15

I'm trying to read an audio file, add a white noise and then write the resampled audio to a file at 48 kHz. I'm getting a warning

" Warning: Data clipped when writing file. > In audiowrite>clipInputData (line 481)"

can someone please help me with that?

clc
clear
[y, Fs] = audioread('test.wav');% y samples from audio with Fs sampling frequency in [Hz]
 
sound(y, Fs);  % listen to the audio input
Sigma = 1;  % Standard deviation of the noise
N = length(y); % sample lenth
w = Sigma*randn(1,N); % Generate Gaussian noise
x = y+w';   % Add noise to the audio signal
figure (1)
plot(x); % Plot the noisy audio signal
figure (2)
plot(y);  % plot the audio
x_sampled = resample(x,3,1); % sampling frequency to 48 kHz
audiowrite('Noisy_resampled.wav',x_sampled, Fs);  % Write the resampled audio to a file
[y, Fs] = audioread('Noisy_resampled.wav'); % Read the resampled audio
sound(y, Fs);