how to pan stereo audio on Matlab

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

Answer 1

[Bora Eryilmaz]

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);

[Femi Okome]

thank you very much, was wondering what the problem was. thank you again