Separate voice from music out of a song free with powerful AI algorithms. Change audio pitch without affecting the tempo. Speed up or slow down audio playback without affecting the pitch. Trim and cut audio tracks. Join multiple audio tracks into one. Sing & record, tune voice and save complete song. Choose karaoke track you want to sing with. Convert audio files to MP3, WAV, OGG. Choose file select codec you want. Detect beats per minute for any song. Analyzes music and finds musical key.