Demixr vs Vocly

Demixr is a web service for processing audio, with tools for separating vocals and instruments, removing reverb, marking speech, and analyzing BPM and key. Its Pro 1.5 vocal separation has Voice mode for complex mixes, live recordings, or speech over music, and Music mode for songs and covers or separating vocals from accompaniment. A separate stem tool uses Demucs to split music into vocals, drums, bass, and other parts. For dereverb, Demixr recommends isolating vocals first; applying the effect to a mixed track can cause artifacts or distortion. VAD provides editable speech-segment markers and batch export, though detection may be inaccurate with quiet vocals or noisy recordings. BPM analysis includes tempo, key, and Camelot values, with optional tap-to-sync. The free plan costs nothing and includes 10 minutes of audio monthly, a 10 MB upload limit, two VAD uses, queued processing, and no WAV downloads. Paid one-time plans start at $4/mo, without automatic renewal. Uploads and outputs are deleted within 24 hours by default.

Vocly is an Android app that uses on-device AI to separate phone audio and video into vocal and instrumental tracks. Standard mode separates vocals and instrumental; Advanced mode also separates drums, bass, and other sounds. It accepts MP3, M4A, WAV, FLAC, and OGG audio. The mixer can mute, solo, balance, loop, change tempo from 75–125%, shift pitch by ±6 semitones, and compare with the original. Users can add and synchronize lyrics for karaoke. Imported MP4 or MOV video can be exported with vocals or music while retaining its picture. Audio exports include M4A, WAV, and FLAC, with individual stems or custom mixes. Separations are saved locally, and a batch queue handles multiple files. After a one-time model download, processing works offline. The Free plan costs nothing and includes ads, separation, mixer, karaoke mode, and a stem library. Pro monthly and lifetime plans have prices not listed.