Only thing that I want to control is speed. not pitch.

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Daeil Jung
Daeil Jung 2018-12-10
评论： adnan abid 2021-1-14
[Q, S] = audioread("sample.mp3");
speed = 1.2;
S = S * speed;
soundsc(Q,S);
This is what I do.
as you know, this code makes increase both pitch and speed.
but I want to make change only speed.
How can I control it?
**and How can I only control pitch?

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Jan
Jan 2018-12-10

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Bilal AKBANA
Bilal AKBANA 2020-4-3
编辑：Bilal AKBANA 2020-4-3
THIS IS THE CLEAR ANSWER I THINK COVERING BOTH VOLUME AND SPEED OF THE SOUND WITH CONDITION THAT YOU HAVE stretchAudio FUNCTION RELEASED AS OF R2019b. THIS ALGORITM CAN CHANGE THE SPEED AND VOLUME OF THE AUDIO WITHOUT MAKING IT SOUND FUNNY.
[y, fs] = audioread("sample.mp3"); % read audio file.
speed = 1.2; % increase speed of sound 1.2 times than the given speed.
volume = 2; % increase volume of sound 2 times than the given volume.
y = stretchAudio(volume*y,speed);
sound(y,fs); % my recommendation is to use sound instead of soundsc
% clear sound; % to stop sound
% OR INSTEAD OF sound you can use
player = audioplayer(y,fs);
% play(player); % comment this out it will play.
% stop(player); % comment this out it will stop.
Brian Hemmat
Brian Hemmat 2019-12-10
Starting in R2019b, Audio Toolbox provides functions to shift pitch and time-stretch audio: shiftPitch, stretchAudio.

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