Clumi separates music. It removes vocals to leave a clean instrumental, isolates individual stems for drums, bass, piano and guitar, and outputs high-quality WAV at 24-bit. Around that sit noise removal, audio enhancement, key and BPM detection and audio-to-MIDI conversion. It takes MP3, WAV, MP4, MOV and similar up to ten minutes and 100MB.
Twenty-four-bit WAV output is the specification that decides whether this is usable past karaoke. Stem separation always leaves artefacts, and every one of them is amplified by the lossy compression most tools hand back – so an MP3 stem sounds acceptable alone and falls apart the moment it is layered into a mix. Keeping the output at full bit depth is what makes the stems worth taking into a DAW.
Audio-to-MIDI alongside stem separation is a sensible pairing: once the piano is isolated, converting it to notes is the obvious next thing a producer wants. The free tier shows a remaining-file counter and no plan prices appear on the page. No company is named beyond the product. Ten minutes and 100MB rules out full DJ sets and long-form audio, separation quality varies sharply with how the source was mixed, and separating a commercial track does not grant any right to release it.
