> ## Documentation Index
> Fetch the complete documentation index at: https://docs.movoice.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Engine tab

# Engine Tab

The **Engine Tab** handles advanced technical settings that govern how the agent processes speech and manages silence.

## ASR Settings (Speech-to-Text)

* **Model**: Select the ASR model (e.g., Deepgram Nova-2, Sarvam v2.5).
* **Endpointing**: Determines how long the agent waits for the user to stop talking before processing.
* **Min Interrupt Threshold**: How loudly/clearly must the user speak to interrupt the agent while it is talking?

## Buffer Settings

Configure how sentences are streamed from the LLM to the TTS engine. Optimizing these values is key to reducing "Time to First Word."

## Silence Timeout

How long should the agent wait for user input before saying a "re-engagement" phrase or hanging up?

* **Default**: 10 seconds.
* **Prompt hint**: "If the user is silent, say: 'Are you still there? I'm happy to help if you have more questions.'"

## Transcription Language

Ensure the Engine's ASR language matches your agent's spoken language. For Indian regional languages, **Sarvam AI** is our recommended engine provider.