Question: Looking for a tool that can enhance voice quality and remove vocals from background music in songs.

If you're looking for a tool to improve voice quality and isolate vocals from background music, Cryo Mix is a good option. The AI music mixing and mastering service offers tools for pitch correction, final mix preparation and an AI Audio Separator that isolates stems like vocals, drums and instruments. It also offers an interface for saving your mixes and generating cover art from your audio.

Another good option is LALAL.AI, an AI-powered audio file separation service that lets you split audio files into high-quality vocal and instrumental tracks. It can handle multiple file uploads and offers a variety of stem options. The service also offers a beta version of a Voice Changer tool, so it's good for musicians and content creators.

If you want a broader range of features, AudioShake is an AI-powered audio separation tool that can separate stems from audio tracks. It's good for mixing and mastering, localization and interactive experiences. It can handle files up to 192kHz and offers multiple entry points depending on your needs.

If you're looking for something simple, SongDonkey is a free AI-powered tool that separates vocals from audio tracks and splits tracks into different instrumental stems. You can use it to create custom karaoke tracks or isolate specific instruments, which can be useful for creating acapella or instrumental versions of songs.