What Thinking Sounds Do
Expert Mode Thinking Sounds play subtle audio cues—like keyboard typing—while your agent processes responses. This adds realism to conversations by filling silence during AI processing, actions like calendar bookings, or tool execution.When enabled, callers hear realistic keyboard typing sounds during processing, making it feel like someone is actively working on their request.
How It Works
Thinking Sounds are triggered during:- AI processing: While the agent generates a response
- Tool execution: While running tools such as calendar bookings, transfers, or API calls
- Complex reasoning: Multi-step processes that take longer
Configuration
Navigate to General → Sounds in your agent editor.Enable Thinking Sounds
Toggle thinking sounds on or off:- Enabled: Keyboard typing sounds play during processing
- Disabled: Silent processing (default)
Set the Delay Threshold
Use the Delay threshold slider to control when thinking sounds begin:- 0 ms: Sounds start immediately when the agent begins thinking
- 750 ms: Default setting, which avoids sounds for very fast responses
- 3000 ms: Only plays for longer processing pauses
Upload Custom Thinking Sounds
When thinking sounds are enabled, you can upload up to five custom MP3, WAV, or OGG files. If you do not upload custom files, the default keyboard typing sound is used. For each uploaded sound, you can adjust:- Volume: 25%, 50%, 75%, or 100%
- Probability: 25%, 50%, 75%, or 100%
Use Cases
Customer Support
Makes it feel like the agent is actively looking up information in a system
Booking & Scheduling
Provides audio feedback while processing calendar integrations
Sales Calls
Adds professionalism—sounds like the agent is taking notes
Technical Support
Simulates looking up documentation or running diagnostics
Best Practices
Use sparingly: Thinking sounds work best for occasional pauses. If your agent processes frequently, consider combining with Smart Filler instead. Match your use case: Typing sounds work well for business contexts but may feel out of place for casual or entertainment applications. Test the experience: Make several test calls to ensure thinking sounds enhance rather than distract from the conversation. Combine with other features: Use alongside Smart Filler for better latency management — verbal acknowledgment plus audio feedback.Combining with Smart Filler
Thinking Sounds and Smart Filler complement each other:| Feature | What it does | Best for |
|---|---|---|
| Smart Filler | Verbal acknowledgment (“Let me check…”) | Longer pauses (1-3+ seconds) |
| Thinking Sounds | Audio feedback (keyboard typing) | Shorter pauses (0.5-2 seconds) |
| Both together | Verbal + audio feedback | Complex processing |
Technical Details
- Default sound type: Realistic keyboard typing
- Trigger: Automatic during processing states
- Delay: Configurable from 0 ms to 3000 ms
- Custom sounds: Up to 5 per agent, MP3/WAV/OGG, max 10 MB each
- Duration: Matches actual processing time
- Blending: Sounds fade naturally when speech begins
Next Steps
Smart Filler
Add verbal acknowledgments during processing
Ambient Sound
Add background atmosphere
Voice Settings
Fine-tune voice parameters
Test Your Agent
Test thinking sounds in the simulator