Respeecher: A Closer Look at the Voice AI Company Behind Major Film, Game, and Media Projects

Artificial intelligence is changing how audio is produced, localized, edited, and scaled across the entertainment and media industries. One company working specifically at the intersection of AI and professional audio is Respeecher, a voice technology company developing speech synthesis and voice cloning solutions for film studios, game developers, musicians, brands, content creators, and technology companies. Its technology has already been used in major productions including The Mandalorian, The Book of Boba Fett, Cyberpunk 2077: Phantom Liberty, The Brutalist, and Emilia Pérez.

What Is Respeecher?

Respeecher was founded in February 2018 by Alex Serdiuk, Dmytro Bielievtsov, and Grant Reaber. The company started with a straightforward technical question: could machine learning be used to clone human speech and transfer one person’s performance into another voice while maintaining natural expression?

The idea developed into proprietary speech synthesis technology focused on producing realistic synthetic voices for professional applications. In 2019, the company completed the Comcast NBCUniversal LIFT Labs Accelerator powered by Techstars, and in 2020 it raised $1.5 million from investors including ff Venture Capital, Acrobator Ventures, ICU Ventures, Network VC, and angel investors.

Unlike voice tools designed primarily for simple text narration, Respeecher has placed significant emphasis on speech-to-speech conversion. This approach can preserve elements of the original performance while changing the identity or characteristics of the resulting voice. The company’s technology is also available through text-to-speech products and APIs.

AI Voice Lab for Professional Productions

One of Respeecher’s core offerings is its AI Voice Lab, which is designed for studios and enterprise-level productions.

The service covers professional voice cloning and synthetic speech workflows for film, television, streaming, music, and video games. Among the applications listed by Respeecher are creating licensed versions of recognizable voices, replacing or modifying dialogue, supporting multilingual production, working with singing voices, and generating voices for game characters and NPCs.

An important distinction is that AI Voice Lab is not positioned simply as a self-service voice generator. Respeecher combines its technology with work performed by audio and voice professionals, which makes the service suitable for productions where consistency, performance quality, and control over the final sound are important.

For smaller projects and individual creators, the company also operates its Voice Marketplace.

Voice Marketplace, APIs, and Pro Tools

Respeecher’s Voice Marketplace provides access to synthetic voices through a more standardized workflow. Users can work with both speech-to-speech and text-to-speech conversion, organize recordings into projects, select voices and accents, and export completed conversions.

The Marketplace is also accessible programmatically. Its API includes functionality for projects, recordings, TTS generation, voices, accents, calibration, conversions, and exports. This allows developers to integrate Respeecher’s technology into applications or existing production pipelines instead of processing every recording manually.

For professional audio production, Respeecher has also developed a Pro Tools plugin. It enables speech-to-speech conversion directly inside Avid Pro Tools, allowing audio professionals to work with Respeecher voice models without repeatedly moving recordings between separate applications.

The company now offers another product aimed at real-time applications. Respeecher Space provides a low-latency text-to-speech API with streaming through Server-Sent Events and WebSockets. Respeecher recommends the Space API for real-time TTS scenarios such as voice agents, while its Marketplace API remains focused on speech-to-speech conversion and project-based audio workflows.

Major Respeecher Projects

Some of the strongest evidence of Respeecher’s position in professional voice AI comes from its production credits.

In 2020, the company was credited for synthesizing the voice of young Luke Skywalker in the season finale of Disney+’s The Mandalorian. Respeecher later confirmed its work on young Luke Skywalker’s voice in The Book of Boba Fett. The company was also credited in episodes three through six of Obi-Wan Kenobi.

Its work extends beyond the Star Wars franchise. Respeecher assisted CD PROJEKT RED with the voice of Viktor Vektor in Cyberpunk 2077: Phantom Liberty, following the death of Polish voice actor Miłogost Reczek. More recently, the company’s technology was used in The Brutalist to help with Hungarian pronunciation and in Emilia Pérez to support musical performances. It also recreated historical voices for National Geographic’s Endurance.

Advertising provides another example of how the technology can be used at scale. Respeecher worked with Mondelēz International, Ogilvy, Wavemaker, and Rephrase.AI on a Diwali campaign featuring Shah Rukh Khan. According to the published case study, the project generated personalized advertising for more than 1,800 local stores across eight Indian municipalities, while synthetic media helped make the production schedule ten times faster.

Respeecher has also worked on music and audiobook projects. Its technology helped Aloe Blacc perform versions of “Wake Me Up” in additional languages for a tribute to Avicii, and it was used to create an AI version of LinkedIn co-founder Reid Hoffman’s voice for the 6.5-hour audiobook version of Impromptu.

A Strong Focus on Ethical Voice AI

Voice cloning introduces obvious questions about consent, ownership, impersonation, and unauthorized use. Respeecher has made these issues a formal part of its operating policies.

The company states that explicit permission is required for voice replication and that it does not permit deceptive uses of its technology. For professional actors and private individuals, Respeecher says it does not use voices without permission. Its published policies also cover privacy, content moderation, copyright, likeness protection, and the use of client data.

Respeecher participates in organizations and initiatives including Partnership on AI, the Content Authenticity Initiative, Open Voice Network, and the Human Artistry Campaign. It has also worked with organizations representing performers, including SAG-AFTRA and the National Association of Voice Actors, on issues surrounding responsible synthetic media.

Reviews, Awards, and Industry Recognition

Independent user feedback is positive, although the publicly available review sample remains relatively small. On G2, Respeecher currently has a rating of 4.1 out of 5 based on four reviews. Reviewers have specifically mentioned voice quality, the available voice library, the Marketplace and API, and the usefulness of the technology in post-production and voice cloning workflows.

The company also has recognition from the media and technology industries. Respeecher received an Emmy for its work recreating Richard Nixon’s voice for the interactive documentary In Event of Moon Disaster. In 2023, the company won a Webby Award for Best Use of AI for a project involving the recreation of a voice for the JOLLY YouTube channel.

Final Thoughts

Respeecher’s portfolio shows how synthetic speech has moved beyond experimental voice generators into professional production workflows. Its technology is being used across movies, games, music, advertising, audiobooks, and software products, with options ranging from custom studio services to APIs and self-service voice tools.

Projects involving Lucasfilm, CD PROJEKT RED, National Geographic, Mondelēz, major film productions, musicians, and other organizations also provide concrete examples of the technology being used in real commercial environments. Combined with explicit consent policies and a focus on licensed voice use, Respeecher represents a practical example of how voice AI can be integrated into professional media production while addressing some of the industry’s most important questions around ownership and responsible use.