Response Speed vs. Accuracy
Your AI assistant has adjustable engine settings:- Dualplex: lowest latency, voice cloning available
- Pipeline: transcription, model, speech — the widest choice of voices, with a pause between turns
- Speech-to-speech: native voice generation, no transcription step
Filler Audio
To minimize silence during processing:- Click Enable fillers in Voice & speech → Filler audios
- The AI will use natural sounds (like “hmm” or “one moment”) while processing
- The section only appears on the Pipeline engine, which is the one with a pause to cover
Common Issues & Solutions
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Slow Responses
- Switch to the Dualplex engine
- Enable Filler Audio
- Simplify your system prompt
-
Inaccurate Responses
- Pick a stronger model in Brain & prompt → Model
- Provide more context in your prompt
- Add specific examples
-
Voice Quality
- Try different voice models
- Adjust speech speed settings
- Try cloning a voice
-
Assistant Not Responding or Missing Speech in Transcript
- Disable noise cancellation in Call behavior → Audio & recording
- Noise cancellation can sometimes filter out speech or cause the assistant to not respond
- Test with noise cancellation disabled to see if speech is properly detected
Optimization Tips
- For sales calls: Dualplex, or Pipeline with filler audio if you need a specific voice
- For support: keep the engine and pick a stronger model in Brain & prompt → Model
Need help? Contact support if these adjustments don’t resolve your issues.

