- https://www.mathworks.com/matlabcentral/answers/106660-how-can-i-alter-the-speed-of-a-wav-file-without-altering-its-pitch
- https://dsp.stackexchange.com/questions/45794/how-to-change-speed-of-audio-samples-without-changing-pitch
- https://dsp.stackexchange.com/questions/31850/slow-down-music-playing-while-maintaining-frequency
Only thing that I want to control is speed. not pitch.
51 ビュー (過去 30 日間)
古いコメントを表示
[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?
0 件のコメント
採用された回答
Jan
2018 年 12 月 10 日
Start with searching in the net, especially in this forum:
The problem is complex.
3 件のコメント
その他の回答 (2 件)
Bilal AKBANA
2020 年 4 月 3 日
編集済み: Bilal AKBANA
2020 年 4 月 3 日
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.
1 件のコメント
Brian Hemmat
2019 年 12 月 10 日
Starting in R2019b, Audio Toolbox provides functions to shift pitch and time-stretch audio: shiftPitch, stretchAudio.
2 件のコメント
参考
カテゴリ
Help Center および File Exchange で Audio I/O and Waveform Generation についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!