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### Answer It sounds like you are encountering pronunciation issues with your voice assistant using 11labs’ Bria voice. This type of error can sometimes be linked to the TTS (Text-to-Speech) system interpreting the text in an unexpected way. While your specific issue with the number "zero" isn't directly addressed in the provided documents, there are general guidelines and potential solutions you can consider: 1. **Adjust Prompting Techniques**: Sometimes altering the way numbers are written in the prompts can influence pronunciation. Writing numbers phonetically or changing the format might yield better pronunciation results from the TTS engine. 2. **Transcriber Configuration**: Ensure that the transcriber settings are correctly configured. Misconfiguration here could potentially lead to unexpected TTS outputs, although this is more relevant to speech-to-text processes [(1)]() . 3. **Test with Different Configurations**: Since you mentioned the issue occurs with different voices and settings, systematically testing different combinations of model settings, transcribers, and voices could help isolate the problem. 4. **Consult with the Provider**: Reaching out to 11labs for specific advice on their TTS configurations might provide insights or a direct solution to the pronunciation issue. Unfortunately, without more detailed documentation on the issue directly from Vapi or 11labs, these suggestions are based on general best practices for troubleshooting TTS systems. If the problem persists, consulting directly with the voice provider’s technical support might be necessary.

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