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What is Voctro Labs?
Voctro Labs is a Barcelona-based creative voice technology company founded in 2011 by four audio researchers. It builds AI-based speech, singing and audio tools, and licenses them to creative media companies in music, games, apps, advertising and film. Its background is research-heavy: the team came out of the Music Technology Group at Universitat Pompeu Fabra and has collaborated with Yamaha on singing synthesis.
Its work splits into two main tracks:
- Voiceful — a toolkit for designing digital and mobile experiences around speech and singing voice. It is aimed at creative agencies, app developers and content production companies, and is offered as a cloud API plus SDKs for iOS, Android, Unity, Windows, OS X and Linux. Typical uses include games, mobile apps and IoT devices.
- VOCALOID Virtual Singers — Bruno, Clara and MAIKA, singing voices for Yamaha's VOCALOID synthesizer, aimed at amateur and professional musicians on Windows and OS X.
It also offers services: custom synthesis voices (for example for celebrities and artists), customization of its voice and audio algorithms, and collaborative research and innovation projects. Past work listed on the site spans advertising, apps, events, music and games, including projects with Ballantine's, Hyundai and Soundtrap.
How to decide if it is relevant to you
| If you are… | Voctro Labs is likely relevant because… |
|---|---|
| An app or game developer adding voice interaction | Voiceful provides an API and cross-platform SDKs |
| A musician wanting synthesized singing | The VOCALOID virtual singers are made for that workflow |
| A brand or agency needing a distinctive voice | Custom synthesis voices and algorithm customization are offered |
| A researcher or product team with a novel audio problem | The company takes on collaborative R&D work |
Next step: if you have a specific project, decide first whether you need a ready-made toolkit (Voiceful), a virtual singer (VOCALOID), or a bespoke voice — then check the product and contact pages at Voctro Labs to see which fits and how to start a conversation.
How can I integrate voice interaction into my mobile game or app?
Voice interaction can be added to a mobile game or app in two main ways: real-time synthesis of speech or singing generated on demand, or pre-rendered voice assets created ahead of time. Voctro Labs' Voiceful product is aimed at the first approach, offering a cloud-based API plus SDK libraries for iOS, Android, Unity, Windows, OSX and Linux, so it can fit mobile, desktop and game-engine projects. The same company's Vocaloid Virtual Singers (Bruno, Clara, MAIKA) target singing-voice synthesis for musicians rather than app developers, so they suit a different use case: pre-authored songs and vocals rather than live in-app interaction.
A practical integration path
- Decide what the voice must do: read text aloud, respond to player actions, sing, or adapt to a user's own voice. Voiceful is positioned around speech and singing voice for interactive and personalized experiences, so it covers the first three more directly than the fourth.
- Choose where processing happens. A cloud API keeps the device light but requires a network connection and adds latency; on-device SDK libraries avoid that dependency but constrain the device. Voiceful offers both a cloud API and SDK libraries, so the trade-off is yours to make.
- Prototype with the smallest loop: one line of dialogue triggered by one game event, on your primary target platform. Unity is explicitly supported, which shortens the path for many mobile games.
- Only then scale to personalization, multiple languages or singing, since these add content and tuning work.
Where it fits and where it does not
| Need | Better fit | Why |
|---|---|---|
| Interactive spoken lines in a game or app | Voiceful | Cloud API and SDKs for mobile, Unity, desktop |
| A singing character for a released track | Vocaloid Virtual Singers | Singing synthesis for musicians and end users |
| A celebrity or artist voice | Voctro Labs' personalized voice service | Custom synthesis voices created for named artists |
| Fully offline, zero-latency voice on a low-end phone | On-device SDK route | Cloud round-trips may be too slow or unavailable |
Next step
Write down one concrete scene, such as a shopkeeper greeting a player by name, and list the inputs it needs: the text, the target voice, the trigger event and the acceptable delay. That list tells you whether a cloud API or an on-device SDK is the right starting point, and it gives you a testable first milestone before you commit to a wider rollout. Voctro Labs' own case-study list, which spans advertising, apps, events, music and games, is a reasonable place to find a comparable project and judge whether your scope matches theirs.
What are the differences between Voiceful and Vocaloid for music production?
Voiceful and Vocaloid serve different music-production needs. Voiceful is a developer toolkit for adding speech and singing voice to apps, games and connected devices, while Vocaloid is a singing-voice synthesizer aimed at people making music with virtual singers.
Where each fits
- Voiceful — a cloud API plus SDK libraries for mobile, tablet and desktop applications (iOS, Android, Unity, Windows, OSX, Linux). Voctro Labs positions it for creative agencies, app developers and content production companies that want voice interaction and personalization in digital or mobile experiences, including games, apps and IoT devices. The emphasis is on building voice into a product, not on producing a finished song.
- Vocaloid — Yamaha's singing voice synthesizer, commercialized since 2003. Voctro Labs' contribution here is the Vocaloid Singers Bruno, Clara and MAIKA, virtual singers for that software. The audience is end users, amateur and professional musicians, working on Windows or OSX. The emphasis is on singing performance for music creation.
How to choose
| If your goal is... | Look at... |
|---|---|
| Adding voice interaction or personalization inside an app, game or device | Voiceful |
| Writing and producing vocal parts for songs | Vocaloid with virtual singers such as Bruno, Clara or MAIKA |
| Shipping across iOS, Android, Unity, Windows, OSX and Linux | Voiceful's SDK libraries |
| Working in a desktop music-production setup on Windows or OSX | Vocaloid |
A practical next step: if you are a musician, decide first whether you need a singing voice for a track (Vocaloid) or a voice feature embedded in software you are building (Voiceful). If you are a studio or agency, check which of the two matches your deliverable, a song or an interactive experience, before evaluating the tooling.
Voctro Labs also offers custom synthesis voices for celebrities and artists, plus algorithm customization and research collaborations, so projects that need a bespoke voice rather than an off-the-shelf one can be discussed directly with the company. More detail is available at Voctro Labs.
How can I get a custom voice created for a celebrity or artist?
Custom celebrity or artist voices are typically handled as a bespoke, licensed project rather than a self-serve product. Voctro Labs states it offers personalized voices and can create custom synthesis voices for celebrities and artists, alongside customizing its voice and audio algorithms for specific project needs. That places this kind of work in the “services” category on Voctro Labs, S.L., not in its off-the-shelf product line.
What that means in practice:
- You need rights and consent. A celebrity voice is usually tied to the artist's name, likeness and recording contracts, so expect legal clearances before any technical work begins.
- The output format matters. A voice could be delivered as a cloud API/SDK for apps and games, or as a singing synthesizer for music production. Voctro Labs builds both kinds of technology, so the intended use shapes the project.
- Data is the main input. Building a convincing synthetic voice generally requires recordings and a defined style or language range; the more controlled the recording sessions, the more predictable the result.
- Timeline and cost are project-specific. Custom voice creation is not a download-and-go purchase, so budget for scoping, recording, model building and review.
Next step: contact Voctro Labs through the contacts page on Voctro Labs, S.L. with a short brief covering the artist, the intended use (game, app, song, ad), the languages or singing styles needed, and who holds the rights. If you are exploring the technology side first, its Voiceful product shows the kind of voice interaction and personalization it supports for games, mobile apps and IoT devices.
Decision criterion: if you need a finished, licensable artist voice, treat it as a custom services engagement. If you mainly need generic speech or singing voices for an app, a ready-made toolkit may be enough.
What research and development services does Voctro Labs offer for audio projects?
Voctro Labs offers three named R&D-related services: custom synthesis voices, algorithm customization, and research and innovation collaboration. All three sit alongside its product work (Voiceful, VOCALOID Virtual Singers), so the practical distinction is whether you need a finished tool or a bespoke piece of voice/audio technology.
What each service covers
- Personalized voices — custom synthesis voices built for a specific person, such as a celebrity or recording artist. This is the option for a project where the voice itself is the asset: a branded character, a virtual performer, or a licensed artist voice.
- Algorithms — the company's voice and audio algorithms adapted to a particular project's requirements. Choose this when you already have a product or pipeline and the gap is technical capability rather than a full voice.
- Research and innovation — joint work with industrial and academic partners on research and innovation activities. This fits longer-horizon projects, funded programmes, or collaborations where the output is a new method rather than a shippable feature.
Which one fits your project
| Your situation | Service to ask about |
|---|---|
| Need a specific person's voice synthesized | Personalized voices |
| Have a product, need voice/audio tech tuned to it | Algorithms |
| Exploring a new capability with a partner or grant | Research and innovation |
| Want to build voice interaction yourself | Voiceful (product, not a service) |
A concrete example
A game studio building a singing character has two plausible routes. If the character is the product, the studio commissions a custom synthesis voice and then integrates it. If the studio already has a voice pipeline and only needs better pitch or timbre handling, the algorithm-customization route is the smaller, cheaper engagement. The same logic applies to an advertising agency producing a campaign around a known artist's voice.
Why the research background matters here
Voctro Labs was founded in 2011 by four audio researchers and licenses technology worldwide from Barcelona. Its team's applied research background at MTG-UPF, prior collaboration with Yamaha, and participation in European Commission FP7 and H2020 programmes are relevant signals if you are considering the research-and-innovation route — that track usually requires a partner with a publication and grant track record, not just an API.
Next step
Decide first whether you are buying a voice, a technical capability, or a research partnership, then approach Voctro Labs with that framing. For reference on the underlying synthesis technology, see Yamaha.
Which companies have used Voctro Labs' voice technology in successful campaigns?
Voctro Labs' own case studies list several brands and projects that used its voice technology, spanning advertising, music, games and apps. From the company's success stories:
- Ballantine's — "Plan B" (2012–2013), advertising
- Hyundai — "Hyundai Brilliant" (2013), advertising
- Frenadol — "Frenadol Catarrator" (2013), advertising
- Ona — "Ona Virtual Live" (2013), events
- Take7 (2014), music
- SLID App (2014), apps
- Chantr (2015), music
- DJ Voxchanger (2015), music
- Ditty for Messenger (2015), apps
- Mira't la Veu (2015), services
- Beeping (2015–2017), games
- Mursion VR (2017), games/VR
- Soundtrap (2017), music
The page also credits Voctro Labs' co-founders with research behind Yamaha's VOCALOID singing synthesizer, and lists Vocaloid Virtual Singers Bruno, Clara and MAIKA (2011–2014) as products for end users and musicians.
How to read this list
The campaigns cluster into two patterns. Advertising and events work (Ballantine's, Hyundai, Frenadol, Ona) tends to use custom or personalized voices for a short, high-visibility push. Music and app work (Soundtrap, Ditty, Chantr, Beeping) tends to embed voice or singing features into a product that users return to. If you are evaluating a partner for a campaign, the first group is the closer analogue; for a product feature, the second.
Next step
For a specific campaign, ask Voctro Labs which of these cases is closest to your use case and request the relevant case study directly, since the page gives only names and years. If your interest is singing synthesis rather than speech, note that the Vocaloid work is tied to Yamaha's software, so licensing runs through that product rather than Voctro Labs alone.
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