Respeecher

Real-time text-to-speech API plus speech-to-speech voice conversion, with licensed voices

Respeecher Space is a real-time text-to-speech API with streaming latency under 200ms, priced pay-as-you-go at $2 per 60,000 characters (roughly $2 per hour of audio), with a free trial and no subscription.

Speech-to-speech conversion sits alongside it: a recorded performance is rendered in another voice with the original timing and delivery intact, rather than synthesised from text. It is used for dubbing and localisation.

Voices are licensed from real people, with a published revenue share of at least 25% to voice talent. Output carries C2PA Content Credentials.

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Pricing Freemium, $2/60K characters

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What is Respeecher?

Respeecher is an AI voice platform built around one underlying technology, sold as three products: Respeecher Space, a real-time text-to-speech API; Voice Marketplace, a licensed library of ready-made voices; and AI Voice Technology, the enterprise speech-to-speech engine used on film, television and game productions.

The distinction that runs through all three is speech-to-speech rather than text-to-speech. A recorded performance is re-rendered in another voice with the original timing, emotion and delivery intact, instead of being synthesised from a script.

Respeecher Space, the developer API

Space is the piece most relevant to a developer building voice agents or conversational applications. Streaming latency is under 200ms, pricing is pay-as-you-go at $2 per 60,000 characters (roughly $2 per hour of audio), and there is a free trial with no subscription required.

Voice Marketplace

Marketplace is the self-serve route for teams and creators who need quality voice work without a custom clone: podcasters, audiobook producers, advertisers and musicians. Pricing is published rather than quote-only, with credit packs from $5 and subscriptions from $18 a month for text-to-speech only up to $499 a month at the Power tier.

It is usable directly or through Respeecher's plugin for Avid Pro Tools, which converts speech to Marketplace voices without leaving the session, filters voices by age, gender and pitch, adjusts pitch by up to 12 semitones, and converts English speech into any of more than a dozen accents.

Consent and provenance

Every voice is licensed from a real person. Respeecher publishes a revenue-share commitment of at least 25% to voice talent, and its ethics policy requires explicit permission for all voice replications, secured through a mutually signed agreement. Output carries C2PA Content Credentials, and the company participates in the Partnership on AI, the Adobe-led Content Authenticity Initiative, the Open Voice Network and the Witness Deepfake Rapid Response Task Force.

Who it fits

Developers who need a streaming TTS API will want Space. Teams doing dubbing, localisation or post-production, where preserving an actor's original performance matters more than generating new speech, are the case the speech-to-speech engine was built for.