AI Voices for
Game Development

Game development

Ethical voice technology for NPC casts and in‑game dialogue used by AAA studios and long‑running game franchises.

Streamed on

Clients

Respeecher is trusted by industry leaders worldwide
  • Lucasfilm
  • Blumhouse productions
  • AloeBlacc
  • Calm
  • Deezer
  • Sony Interactive Entertainment
  • Sony Pictures Television
  • Edward Jones
  • Ylen
  • Iliad
  • Warner music France
  • Religion of sports
  • Digital domain
  • CMG Worldwide
  • Doyle Dane Bernbach
  • droga5
  • Sim Graphics
  • Veritone
  • Veritone

Media

Respeecher makes headlines around the world


WE Support
GAME Studios

Voice Continuity

Keep characters consistent across sequels, downloadable content (DLC), and live-service updates, under clear consent with the actor or estate.

VO Scale

Build out NPC casts and side-character dialogue from the actors you already have under contract, with performance that holds up in the mix.

Nightly Build Iteration

Get new dialogue into the next nightly build when the narrative changes mid-production.

Voice De-aging

Preserve a young actor's voice from prototype through full production, so a kid character still sounds like a kid in the sequel.
Sound
Mute

Cases

Game Development

Cyberpunk 2077:
Phantom Liberty

Respeecher helped CD PROJEKT RED preserve the voice of Viktor Vektor for a DLC to "Cyberpunk 2077"
voice synthesis

Voice Marketplace: Revolutionizing Indie Games with AI Voice Synthesis Technology

Welcome to the world of indie gaming, where innovation, creativity,...

Why studios choose Respeecher

Built for real productions

Our voice work ships in AAA games and live‑service titles, where narrative changes, recasts, and tight build cycles cost real time and money.

Ethics and consent by design

Every project runs on explicit consent. Every voice we clone or generate is used with permission, under agreements your legal team can stand behind.

Security that matches the studio

Your scripts, recordings, and unreleased dialogue stay yours. We never train public models on your content, and our systems are built for studio‑level security.

People who know the craft

Respeecher is a team of sound engineers, synthetic speech artists, and ML researchers who work in DAWs and inside real production schedules.

Testimonials

Brady Corbet
The process was creatively fulfilling and wholly successful as a result of months of hard work and transparent communication between our performers, our mixers, and Respeecher’s excellent team of engineers— all the feedback from myself, our Hungarian team, and our sound department was taken into account, but more importantly the results exceeded our expectations—Respeecher helped us to perfect even the most nuanced elements of the Hungarian language; known to be one of the world's most difficult languages if one is not originally a native speaker. [...]

What Respeecher is doing will open up possibilities for performers to play characters from anywhere in the world whilst also honoring the nations those characters are from.
Michael Gracey
We were thrilled with the voice conversions from Respeecher. They kept us in the loop at every stage, refining the audio through multiple iterations and feedback rounds. Their dedication and problem-solving ensured we got results that both I and Robbie Williams himself were happy with.
Cyril Holtz
I am delighted with the result—the songs sound exactly as I envisioned them, adding new shades and hues to the story. Respeecher's sound team has proven to be both diligent and professional when it comes to dealing with very subtle aspects like pitch and accent peculiarities. “Emilia Pérez” turned out great, and I am grateful to the Respeecher's engineers.
Reid Hoffman
LinkedIn
Microsoft
Respeecher also matched my voice to Scott’s professional reading of the Impromptu text. The end result is a nearly perfect audio artifact with amazing intonation. It sounds flawlessly human—though a bit less of a match to “my” voice than the Vall-E recording—and most importantly, similarly didn’t require multiple days of my time to record. If we hadn’t prioritized releasing an early version to show folks what that sounded like, the Respeecher team was confident that with more iterations we could have gotten it near-perfect.
Bear Grylls
We worked with Respeecher to recreate my voice in Ukrainian to as part of our education initiative ‘BecomingX Ukraine’. The technology is phenomenal and the result is astounding – I never thought I’d hear myself speaking fluent Ukrainian! Well done and thank to all the team for all your incredible work you are doing. We’re forever grateful and proud to partner with you.
Jennifer Trent
We used Respeecher to de-age the voice of a well-known actor in one of our movies. We were nervous that it wouldn’t work very well since the actor is in her 80s and we needed to de-age her down to mid-forties. Even though there was such a huge age jump, the end result from Respeecher was amazing, and added a level of authenticity to our movie. Everyone from our director through our entire post team was excited to work with Respeecher. Hopefully we will be able to do so many more times in the future.
Halsey Burgund
We worked with Respeecher on a film called ‘In Event of Moon Disaster’ first shown at the Amsterdam Documentary Film Festival 2019. They helped us create a synthetic voice of Richard Nixon to bring to life a never-read contingency speech in case the Apollo 11 mission went badly. We created a highly realistic film, in a large part due to their work. ‘In Event of Moon Disaster’ shows the creative possibility of voice replacement technology as well as highlighting just how realistic deepfake technologies can be, acting as a civic engagement project for the public along with contextual and educational resources.
Ryan Steelberg
For Veritone, the most important thing is ensuring our clients get access to technology without compromising on the ability to protect, the delivery speed and quality, and in this case, of the generated content. Respeecher's technology meets both requirements and has a proven track record of working with tier one projects.
David Romberg
When I approached the team at Respeecher with a very sensitive and personal documentary project, I didn't know what to expect. I’m happy to say that it has been an amazing experience. They are extremely professional, ethically minded and are genuinely passionate about bringing their innovative technology to the world. Their approach to the voice cloning process is highly personal and transparent. As a documentarian, it was important to me that the approach was ethical and human focused. The Team at Respeecher delivered on their promises and I could not be happier with the results.
Abigail Savage
 
Respeecher is a remarkable tool for Sound Editors. It delivers very high-fidelity recreations of a target voice, with transparent performance-matching of its source. It blows text-to-speech out of the water! The effect is uncanny and incredibly effective and I can imagine a whole slew of uses going forward. I am very excited to have discovered Respeecher, and it will be my go-to for voice recreation in the future, without question.
Tim Jones
Respeecher-Gives-Voice-to-Michael-York-in-Healthcare-Initiative-Respeecher-Voice-Cloning-Technology
 
Respeecher's source/target conversion of Mr. York's speaking voice demonstrably opens doors for the entertainment, education, and healthcare fields. Suffice it to say, it was an absolute honor to collaborate with them. Their brilliant accomplishment and timely delivery have allowed our humble project to be a success, exceeding our expectations for what's even possible.
Michael York
Michael-York-actor-IMDB-Cabaret-Austin-Powers-Respeecher-voice-cloning-software
 
I am very grateful to Respeecher for giving my words and work a whole new lease on life. The technique involved is as ingenious as it is amazing, and promises a great future for all those involved in voice work. With Respeecher, the quality of the re-worked passages is indistinguishable from the original. History comes almost miraculously alive again. I heartily endorse this product.
Joseph López Osorio
Discovering Respeecher was the highlight of our project. They agreed to work with the task even when our training data was not of the best quality. The result was fantastic, and the level of detail was just outstanding.
Edgardo Rivera
Working with Reespecher was a unique experience. Their attentiveness to detail and dedication to this project allowed us to reconnect with one of our lost narration idols in Puerto Rico 'Manuel Rivera Morales' on a new level. It gave his family and PR a glimpse of what could have been if he was still alive and narrating all sorts of Olympic sports games. It was truly magical to see this project come alive.
Joshua Madoff
Working with Respeecher has been incredible. Their team was meticulous and patient, walking us through the process of developing an accurate model... and the final result was nothing short of miraculous. It really sounds like we’re hearing our (deceased) subject speaking again. Something I never would have thought was possible.
James Tumminia
From the introduction to Respeecher’s innovative and state-of-the-art products to the thorough and quick technical support, I immediately felt that I found the perfect partner and technology for my projects’ needs. During our discussions, the team offered other creative options that assured me we were on the same page and had my project’s success as a top priority. The Respeecher team members are consummate professionals.
Sophie Robinson
Making a film which was so sensitive we needed a company who understood the sensibilities and ethical issues we were dealing with. From the first meeting with them, Respeecher acted with respect and professionalism, delivered what we wanted brilliantly, efficiently and to spec.
Steve Isaacs
When Legion Creative took on the challenge of bringing MTV’s Kurt Loder back to his mid ’90s glory for the Showtime original Yellowjackets, we needed a resource to bring his voice in line with his de-aged visual appearance. Respeecher worked quickly, with clear communication and helped us achieve the time-warping magic we were looking for.
Derek Kedell
Using the Respeecher technology as a powerful filter for our recorded dialogue allowed us to quickly solve a voice-over challenge that could have completely derailed our production timeline and set us back several months. Their easy-to-use online web interface allowed us to resolve our problem in a matter of weeks and with very minimal impact on our overall schedule. Their friendly staff were extremely responsive to our feedback and provided excellent guidance on the use of the amazing technology.
Jacob Mosler
Respeecher brought the voice of WILT CHAMBERLAIN sonically back to life allowing Wilt to posthumously narrate his own documentary series GOLIATH [Showtime & Paramount+]. Our experience working with their team was a pleasure from start to finish. They embraced the creative challenge of building a practically perfect replication of Wilt's voice from hours of archival to carefully match the narration led by our voiceover actor's performance of Wilt's own words selected from his books. Their technicians paid fastidious attention to detail and contineud to work with our directors feedback to adjust the nuance of Wilt's voice until it was seemingly flawless. The Estate of Wilt Chamberlain authorized our team to create a 3-hour series documenting his extraordinary life; so naturally it was a huge relief when we shared the final WILT converted VO narration and received a unanimous approval from his family. Thank you again to Respeecher! Your professionalism, commitment to detail and excellence surpassed our expectations. Your nuanced work brought Wilt's voice back to life will be cherished in GOLIATH eternally.
Bev Standing
Working with Respeecher has provided me to control of where my voice is used, the opportunity to provide consent to my voice being used and receveing compensation.

VOICE DEMO

AI Voice of Richard Nixon | Respeecher
Richard Nixon
Original voice
Richard Nixon
AI voice

Opportunities for your studio

1.

Scale a performance

beyond the session

A-list actors and high-demand voice talent often cannot sit in the booth for hundreds of hours. With our voice work, you record a smaller session and we extend it into the lines, takes, and variations you need.

2.

Work inside clear

ethical boundaries

Every voice model we build starts with consent from the actor or estate, and a defined scope of use. You know exactly where a character’s voice appears, and how it’s used across sequels, DLC, and updates.

3.

Edit dialogue between

builds or after release

Narrative changes mid-production are normal. New lines, rewrites, and barks can be generated from script and pushed into the next build through our API or your existing pipeline.

Post-release fixes and live-service updates run through the same pipeline, even when the cast has moved on to other projects.

4.

Carry the

franchise forward

Recurring characters across sequels, DLC, and live-service. When the original actor can't return, we work with you and the estate to preserve the voice so the character keeps showing up.

Awards

emmy
the-webby
clio

How we work

1.

You share the recordings

  • Send us your target voice recordings: existing audio, archival material, whatever you have.
  • We evaluate the quality and advise on what's needed.
2.

We get permission and sign a contract

  • Before anything is cloned, we secure consent from the voice owner.
  • Every voice is used with full permission. No exceptions.
3.

You get the first results within 2 weeks

  • We build the voice model and deliver the first conversions.
  • You review and give feedback.
4.

We deliver the final voices

  • We process your feedback, refine the output, and deliver the final conversions,
  • or provide direct access to the voice model.
Applications
Applications
Applications
Applications
Applications
Applications
Take your projects to the next level with Respeecher's cutting-edge voice solutions

FAQ

You record your cast normally — leads, supporting actors, the AI voice actors you already have under contract. We train voice models from those recordings, with the actor's permission, and your team uses them to generate additional lines, NPC variations, and pickups between builds.
Most studios bring us in as an AI voice for game development partner for one of four reasons:
  1. NPC and side-character dialogue at scale – 30,000+ lines from a smaller cast of actors you already work with.
  2. Iteration between builds – new lines, rewrites, and barks when the narrative changes mid-production.
  3. Franchise continuity – keeping a character's voice consistent across sequels and DLC, including cases where the original actor cannot return.
  4. Child voice preservation – capturing a young actor's voice at the start of a long development cycle.
For the player, this should come across as one continuous character performance, whether a line was recorded in the booth or built from the same actor’s voice model.

 

On Cyberpunk 2077: Phantom Liberty, we worked with CD PROJEKT RED to match Viktor Vektor’s synthesized lines closely to the original actor’s performance, so the character still felt like the same person.

Yes, with proper consent and licensing. Every voice we clone or generate - whether through an AI voice changer for games or a fully scripted text-to-speech pipeline - is used with permission from the actor or estate, under written agreements your legal team can review.

We deliver final audio files that drop into your existing pipeline — the same way any other VO delivery works. For audio teams working in Pro Tools, we offer a plugin so conversions happen inside the session, without round-tripping files.

For studios with high iteration cycles or large dialogue volumes, we offer API access so new lines can be generated and pushed into nightly builds.

Setup is handled by our team. Your engineers do not have to learn a new system.

Yes, with the actor's written permission. We train a voice model from clean studio recordings of that actor, and use it only for the project and purposes you have agreed on.

The model belongs to your studio. You can use it across the project and its sequels, expansions, and DLC, under the consent terms agreed with the actor. We do not reuse it elsewhere and we do not train public models on your content.

For deceased actors, the same applies through the estate, with documented consent before any work begins.

Yes. Speech-to-speech works in phonetic space, so it converts whatever the performer makes into the target voice – coherent dialogue, combat efforts, screams, grunts, and other sounds a believable scene needs.

That covers a lot of what fills out a scene beyond scripted lines, especially in action and combat-heavy games.

Voice actors record the foundation – the lead performances, the emotional range, and the character. We extend that work into the additional lines, NPC variations, and pickups that would otherwise require pulling actors back into the booth for weeks.

It depends on the use case. For studio-grade recordings of a contracted actor, a few hours of clean audio is enough for most production needs.

For more constrained material (older recordings, child voices captured early in production, archival audio from past projects), we can work with much less. We assess each source before training and tell you upfront what is realistic.