Coolo.ai is an audio separation toolkit: vocal removal, stem splitting, a dedicated lead and backing vocal splitter, noise removal, echo and reverb removal, individual drum, bass, piano and guitar removers, key and BPM detection, audio-to-MIDI, a pitch changer and a cutter. Export is lossless 48kHz 24-bit WAV.
Splitting lead from backing vocals is the specific capability worth singling out, because almost every competitor stops at one vocal stem. A choir, a doubled chorus or a harmony stack all collapse into a single track, which is useless to anyone actually remixing – the interesting material is the relationship between the lead and what sits behind it. Separating those two is a harder problem than isolating vocals from instruments.
Lossless 48kHz 24-bit export matters for the same reason it did for Clumi, which this competes with directly: separation artefacts survive lossy compression and become audible the moment a stem is layered back into a mix. The site runs a 50 percent off promotion with rates on a separate page, and no company entity is named. Separation quality still varies sharply with how the source was mixed, audio-to-MIDI on polyphonic material is approximate, and stems from a commercial track carry no release rights.
