Creating a modified audiofile

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Youssef Darwich
Youssef Darwich 2021-7-30
评论： Youssef Darwich 2021-8-6
Hi,
i have a 2 seconds audiofile. How can i create a 2 min. one from the same data. in other words in need to create a loop of the same data in the original 2 sec. file which goes for 2 min.
i appreciate every help, thanks!
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Jonas
Jonas 2021-8-1
编辑：Jonas 2021-8-1
have a look into the audioread, audiowrite and repmat function

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采纳的回答

Yazan
Yazan 2021-8-1
clc, clear
% load data
load handel.mat
filename = 'handel.wav';
audiowrite(filename, y, Fs);
% save only 2 second of audio
y = y(1:2*Fs);
% extend the audio from 2 sec to 2 minutes
rep = round(2*60/2);
yrep = repmat(y, [rep, 1]);
% write the extended audio
audiowrite(filename, yrep, Fs);
% read the extended audio
[y, Fs] = audioread('handel.wav');
% listen to extended audio
sound(y, Fs);

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