Compare software

Altered StudioRespeecher
Freemium

Commercial product; check the Altered site for current plans and prices.

 Freemium

Free testing of the TTS API, with paid usage and custom pricing for studio projects.

Windows, macOS, Web Web
  • Speech-to-speech conversion keeps the timing and inflection of your performance
  • Curated library of voices plus custom voices
  • Track record on major film and TV productions
  • Voice Marketplace with a Pro Tools plugin
  • Proprietary software
  • Pricing and plan limits are not clear from the homepage
  • Much of the offering is managed services arranged through sales
  • Aimed at professional production rather than casual use
Downloadable app, Web application Web application, Hosted service
Closed source Closed source
License not stated License not stated
Not stated if an account is needed Account needed
Not stated if it works offline Not stated if it works offline

Checked September 26, 2026

Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.