Speed up or slow down audio files online
This Time Stretcher tool allows you to change the tempo of your audio files (only in mp3 or wav format), without affecting the entire pitch of the file. You can either slow down or speed up your audio file online. To start, you have to choose the audio file that you wish to modify. Press the "choose file" button to start.
When you press the play button, the playback will start, and the tempo can be altered instantly using the slider from page. Changing a tempo of some audio file can be used in some specific scenario, but if you are here, you know why is important to do that.