BeMusic AI Cover vs SoulX-Singer

BeMusic AI Cover makes style or voice covers from audio users own or are authorized to transform. Voice Cover applies a selected voice model to a vocal performance; Style Cover changes genre, arrangement, instruments and production. Users can choose preset voices or create a private model from recordings they own or have permission to use. Style Cover accepts MP3 and WAV files up to 50 MB, and supports supplied lyrics and an Instrumental Only option. Voice Cover accepts MP3, WAV, FLAC and M4A files up to 10 MB. Finished covers download as MP3 or WAV without an audio watermark, including free downloads. Core, Open and Lite Style Cover models are available without a subscription; Apex, Pro and Plus require one. Free and Creator output is for personal, non-commercial use unless later licensed; eligible output can receive a commercial-use license with active Pro or Studio. Users must have the necessary rights to source recordings, compositions, lyrics and voices for their intended use. Free starter credits are available, and Creator costs $12 a month, billed $144 billed yearly and renewing at $144/year.

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.