VexWarp Audio Stretcher

An audio slow-downer and pitch-shifter for music transcription and practice.

VexWarp allows you to slow down, stretch, pitch-shift and loop audio files without affecting its pitch. Works with all kinds of audio and video file formats (MP3, MOV, WAV, etc.) It's great for helping you transcribe fast sections of music be ear, and for play-along practice while working on difficult sections.