how to pan stereo audio on Matlab

Question

Femi Okome 2022-12-15

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https://ww2.mathworks.cn/matlabcentral/answers/1879212-how-to-pan-stereo-audio-on-matlab

评论： Femi Okome 2022-12-16

i have exported the data of a sterio wav file. i have code to change aplitude of the audio, pan the audio and play it. but im stuck on how to pan the audio

amplificationFactor = 1.1; % Ten percent gain.
data = data * amplificationFactor;
plot(data);
sound(data, fs);

any advice will be appreciated

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Answer 1

Bora Eryilmaz 2022-12-15

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https://ww2.mathworks.cn/matlabcentral/answers/1879212-how-to-pan-stereo-audio-on-matlab#answer_1128942

编辑：Bora Eryilmaz 2022-12-15

在 MATLAB Online 中打开

For stereo audio, your data has to be an n x 2 matrix. Then you can multiply each channel (column) by a weight between 0 and 1 to pan.

% Full pan left
data = rand(100,2);
data(:,2) = 0;
% Full pan right
data = rand(100,2);
data(:,1) = 0;
% 25% left, 75% right pan
data = rand(100,2);
data(:,1) = 0.25 * data(:,1);
data(:,2) = 0.75 * data(:,2);