An AI music production platform developed by TIMEDOMAIN in China. Enter a melody as MIDI along with lyrics, and it generates singing with human-like phrasing and breath. Since its release in October 2023 it has added AI instrument performance, voice cloning, stem separation, and audio-to-MIDI conversion; the current 2.x line has grown from a singing synthesizer into a broader AI music workspace. It is available both in the browser and as a desktop app for Mac and Windows, and it can be called from your usual DAW through the ACE Bridge plugin.
Key Features
- Vocal Synth: The core feature ─ enter MIDI notes and lyrics and it produces a vocal take. It ships with 140+ royalty-free AI voices covering eight languages (the official pricing page lists 160+). Vibrato, pitch, and tension can be adjusted note by note, so demo and guide vocals can be finished without recording your own voice
- Voice Cloning: Train a dedicated AI singing model from your own voice samples, or from a singer who has given permission. Cloning slots are counted separately for vocal synthesis and for the voice changer, and each plan allows a fixed number of models
- AI Instruments: Generate instrument tracks with natural performance nuance from MIDI. More than 40 royalty-free sound sources are included, among them string sections recorded with the Budapest Art Orchestra
- Stem Splitter / Audio to MIDI: Separate an existing track into vocal, drum, bass, and other stems, or convert a sung recording into MIDI notes and lyrics ─ letting a hummed idea become the basis for an arrangement
- Video Composer / Music Video: An AI agent that analyzes footage and generates matching music and sound effects, keeping video scoring inside the same tool
- DAW integration via ACE Bridge: Runs as a VST3 / AU / AAX plugin and syncs to the DAW tempo in ARA link mode, so AI vocals fit into an existing production workflow
Pricing
| Plan | Price (annual billing, per month) | What’s included |
|---|---|---|
| Artist | $20.73 ($16.58 with the current campaign) | 160+ AI voices, 40+ AI instruments, 1 vocal-synth cloning slot and 1 voice-changer cloning slot, 2,500 credits per month, access to Music Video / Video Composer / Stem Splitter |
| Artist Pro | $27.50 ($22.00 with the current campaign) | Everything above, plus 5 vocal-synth cloning slots and 10 voice-changer cloning slots, and 5,000 credits per month |
Both plans use an annual “rent-to-own” model: after two years of payments the subscription converts to a lifetime license at no extra cost. A full refund is available within 7 days of payment. No free plan is stated on the official pricing page, so check the site directly if you want to know whether a trial is offered.
Pricing reflects information as of August 2026. Please check the official site for the latest details.
Pros & Cons
✅ Pros
- You can finish a demo with vocals from lyrics and a melody alone, even without a singer available
- The bundled voices and instruments are royalty-free, which lowers the barrier to commercial use
- Vibrato and tension can be edited per note, so results are not limited to whatever the first generation produces
- Vocal generation, instrument generation, stem separation, and MIDI conversion live in one tool, avoiding constant switching
- ACE Bridge lets you drop it into an existing DAW workflow rather than rebuilding your process
- Because the subscription turns into a lifetime license after two years, long-term cost decreases
⚠️ Cons
- No permanently free plan is advertised, so evaluation effectively starts from a paid tier
- Monthly credits are capped, and heavy generation pushes you toward the higher plan
- Cloning slots are fixed per plan, which constrains projects that need many character voices
- It assumes MIDI and lyric input, so it requires more sequencing knowledge than tools that produce a song from text alone
- Japanese-language material is thinner than English, so fine-tuning details often means following the official docs and community in English
Comparison with Similar Services
| Item | ACE Studio | Synthesizer V Studio | CeVIO AI | Suno |
|---|---|---|---|---|
| Provider | TIMEDOMAIN (China) | Dreamtonics (Japan) | Techno-Speech / Frontier Works (Japan) | Suno (USA) |
| Input | MIDI + lyrics | MIDI + lyrics | MIDI + lyrics | Text prompt |
| Output scope | Vocals, instruments, video scoring | Vocals | Vocals and speech | A complete song |
| Voice cloning | Yes (slots per plan) | Partially supported | Not supported (uses provided voices) | Not supported |
| Payment model | Annual subscription (converts to a license after two years) | One-time purchase + separate voice databases | One-time purchase | Monthly subscription |
| Bundled voices | 140+ across 8 languages | Voices purchased individually | Voices purchased individually | ─ |
Who Is It For
- People who can write music but stall at the demo stage because no singer is available
- Singer-songwriters who want to model their own voice and sing beyond their natural key or range
- Creators who need vocal material with clear rights for video or game projects
- Producers comfortable with DAW sequencing who want to fold AI vocals into an existing workflow
- Solo creators who would rather handle vocals, instruments, and stem separation in a single tool
Summary
ACE Studio centers on a synthesis engine that turns MIDI and lyrics into singing, then wraps AI instruments, voice cloning, stem separation, and video-linked scoring around it in one workspace. Its direction differs from tools that hand back a finished song for a text prompt: here you keep the reins on the arrangement and remove only the “no singer available” constraint. Since no permanent free tier is visible, the practical approach is to check within the refund window whether it fits your production workflow.