Emvoice vs SoulX-Singer

Emvoice One is a paid vocal synthesis plugin for programming notes and lyrics that a voice engine renders as sung audio. Its editor uses a piano-roll timeline with pronunciation and phoneme controls, and follows the host DAW's tempo and time signature. The cloud engine rebuilds vocals from recorded phoneme samples, sending generated audio back over the internet, so an internet connection is required for editing and rendering. Emvoice One runs on macOS and Windows in VST2, VST3, AU, and AAX formats. Listed hosts include Logic Pro, Ableton Live, Studio One, REAPER, Bitwig, and Cubase. Demo versions of every available voice are included; purchasing a voice unlocks its full version, with 10 presets per voice at no extra charge. MIDI support is listed, and commercial use is allowed. A continuous region can contain up to 20 notes. One plugin instance cannot run two lyric-and-melody sets for self-harmonization. Project files use VP1 and user dictionaries use UD1.

SoulX-Singer is a singing voice synthesis model that generates voices for singers it has not been tuned on. Pitch, rhythm, and expression can be guided by melody-conditioned F0 contours or score-conditioned MIDI notes. Its voice-conversion system changes raw singing audio to a target singer’s voice while retaining melody, rhythm, and lyrics, without requiring lyric or MIDI transcriptions. It supports Mandarin Chinese, English, and Cantonese, plus singer-timbre cloning, cross-lingual synthesis, and lyric editing while retaining natural prosody. Preprocessing tools handle vocal separation, dereverberation, F0 extraction, voice activity detection, and lyric and note transcription. Users can edit MIDI metadata, including lyrics, phoneme alignment, pitches, and durations, before synthesis. Soul-AILab provides generation and conversion demos and a separate MIDI editor through Hugging Face Spaces; the repository also supports local inference. Code and model weights use the Apache 2.0 license. Maintainers caution that automatic preprocessing may misalign singing with lyrics and notes, so manual correction may be needed.