How to Isolate a Voice From Background Music

The short version

Separation works best on a clear recording with a single voice and a moderate backing.
Expect some bleed: a little music or a little voice always ends up in the other part.
Check the rights first: only separate audio you own or are allowed to use.
Clean the separated voice afterwards, the same as any other recording.

Check you are allowed to use it

Separating a voice from a song you do not own can be a copyright issue, even for personal use. Use your own recordings, material with a licence that allows it, or your own vocal stems. Check before you start.

How it works

A separation model learns what a voice sounds like and what music sounds like, then splits a mix into parts. The voice part is the vocal stem, and the rest is the instrumental. Dense, loud mixes with many instruments in the same range are harder to split cleanly.

What to expect

The result is rarely perfect. Expect some bleed, with drums or reverb in the vocal and a little voice in the instrumental. A short phrase often comes out better than a whole song. Check the separated voice by ear before you use it.

Clean the result

A separated voice often has a watery or crunchy edge. Use gentle noise reduction, and check the level and the tone the same way you would for a recording made in a room.

Tunedzy

Tunedzy has a vocal remover and a stem mixer. The Quick edit and Multitrack tools let you line the voice up with your beat and clean it. Use it only on audio you have the right to use.