TimeStretch Player is a WebApp built and copyrighted by Jonas Wagner.
Offline mode enabled. You can use this application while offline.
TimeStretch Player is a free online audio player that allows you to loop, speed up, slow down and pitch shift sections of an audio file.
This makes it a great tool for practicing or transcribing music.
It is developed by Jonas Wagner. You can read more about it in this blog post.
Usage:
To get started, open an audio file. The supported file types depend on your browser, but mp3 and Ogg should generally work. You can do this by clicking on 'Open Track' or dragging and dropping a file onto the page. On Android, you need to select an App that can provide an audio file, for instance, google drive.
After you have selected the file time stretch player will need a few seconds to process it. Once it's done, it will display the waveform of the track. You are now ready.
To play the track, you can simply press the play button or hit the space key on your keyboard. To jump to a specific location, either drag the yellow play head with your mouse or click on location in the waveform.
To change the speed of the playback without affecting the pitch, simply turn the stretch dial. The more stretch, the slower the playback will be.
If you want to shift the pitch of the track, turn the pitch dial. This will change the pitch in semitone increments. For finer adjustments, you can use the tuning dial, which changes the pitch in cents.
To loop a region of the track, enable loop mode by clicking on the loop ( loop ) button. To select the start and endpoints of the loop, you can drag the handles at the edge of the waveform display. Another way to select the loop endpoints is to use the [ and ] buttons which will set the endpoint to the current playback position.
The player will remember the settings you used for every file. This is helpful for practicing, but if you don't like this behavior, you can also turn it off in the settings.
If you have problems with dropouts or crackling noises, you can try to lower the quality of the time-stretching in the settings menu.
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