Remove vocals from songs using phase cancellation — create instrumental and vocal tracks. All processing in your browser
Yes, PivaBox Karaoke Maker is completely free to use. There are no charges, subscriptions, or hidden fees. All audio processing runs locally in your browser using the Web Audio API.
No. All vocal removal and audio processing happen entirely in your browser. Your audio files never leave your device, ensuring complete privacy.
The tool uses phase cancellation — vocals in most commercial recordings are mixed to the center (equal in both left and right channels). By subtracting one channel from the other (L - R), center-panned audio is cancelled out, leaving only the stereo elements (instruments). The strength slider controls how much cancellation to apply, and the bass preserve option adds back low frequencies that are also often center-panned.