TimeToy4 gives you professional quality pitch and time manipulation. Make highly detailed pitch and speed adjustments to any audio file. Apply extreme time stretching to a sound using advanced granular synthesis techniques to create amazing sonic textures that evolve slowly over time. Apply gradual tempo changes to an audio recording, for example to tighten up or add expressivity to a musician's performance, while maintaining excellent sound quality. Add pitch bends and glissandi to existing audio recordings. Musicians: slow down that tricky musical excerpt or adjust the pitch to find out exactly what notes are being played, or simply use TimeToy4 to play along to your favourite track in tune and at any tempo.