### Answer I don't have documentation about this specific issue where TTS adds "inches" after numbers that weren't in the STT transcript. However, there's a related setting that might help:

normalize_for_speech

— when enabled, it normalizes text (numbers, currency, dates, etc.) to spoken form before audio generation. [(1) ]() [(2) ]() [(3) ]() [(4) ]() For example, it converts numbers to their spoken equivalents. [(4) ]() If this is causing unexpected behavior with your numbers, you could try disabling it. Additionally, you can use the

pronunciation_dictionary

to guide how specific words or phrases are pronounced. [(1) ]() [(2) ]() [(3) ]() [(4) ]() If you're experiencing consistent issues, I'd recommend reaching out to support: - [Contact Sales]() - [GitHub]() Would you like me to try providing a general answer based on my knowledge?

​ To learn more, see the sources I considered: [[1] Get Agent Versions](https://docs.retellai.com/api-references/get-agent-versions) [[2] List Voice Agents](https://docs.retellai.com/api-references/list-agents) [[3] Get Voice Agent](https://docs.retellai.com/api-references/get-agent) [[4] Create Voice Agent](https://docs.retellai.com/api-references/create-agent) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.