Change Music Pitch and Speed

Use this tool to change the pitch (audio key) and speed (tempo) of music independently. This tool is useful for music training, transcription, instrument learning (piano, guitar, flute, etc.), or just for music slow down or speed up. If you are logged in you can opt-in to get notified by email once the conversion is finished.

Source file


You can either enter a remote URL (e.g. a location where the source file is located) or a local file from your device. If both, an URL and a local file are selected then one of them is ignored.

Email notifications

Please login to display email notification settings.

Options

Two different algorithms are provided - a time-based and a frequency-based (FFT). Generally Algorithm 1 yields better results, but depending on the input music also Algorithm 2 can sound better.