Precision checking of text-to-speech output is now available to ensure the correctness of names and technical terminology in professional voiceover production. Podonos has released Onepin, a production agent that identifies mispronounced terms using a 4 million word pronunciation dictionary. The tool allows users to correct a single wrong word within a voice track without re-rendering the entire take, removing the need for manual phonetic spellings.

The system integrates with voice subscriptions from OpenAI, Google, ElevenLabs, and more than 30 other providers to prevent silent errors, such as the mispronunciation of brands like the Porsche Taycan. Onepin scores audio for naturalness and clarity, and it can spell out prices and dates before the voice speaks. The service is available for free to start with no credit card required.