Voice & NPC Latency Pipeline Studio
v2.4 Interactive
Conversational AI Engine Benchmark: Inworld AI vs. ElevenLabs vs. MiniMax Streaming Breakdown
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Total Turnaround (TTFA)
320 ms
Time to first audible voice response
Budget Status
Within Budget
Target: 350 ms (
91.4%
used)
Primary Bottleneck
LLM TTFT
110 ms (34.4% of total turn)
Perceived Fluidity
94/100
Interactive Game NPC Grade
Engine Presets
Inworld Low-Latency
Game NPC (<350ms)
ElevenLabs Ultra
Expressive (~680ms)
MiniMax Voice Clone
Agent (~520ms)
Local Edge Hybrid
Sub-250ms Extreme
Stage Latency Controls
LIVE
Network Transport (RTT)
30 ms
Edge WebSocket vs Cross-Region Cloud Roundtrip
ASR & VAD Speech-to-Text
65 ms
Voice Activity Detection + Streaming Tokenizer
LLM Time-to-First-Token
110 ms
Character Intelligence Brain & Prompt Context
Emotion & Context Reasoning
25 ms
Inworld dynamic emotional state & safety filter
TTS 1st Streaming Chunk
90 ms
Neural acoustic & vocoder synthesis for initial frame
Target Budget Ceiling
350 ms
Target human natural conversational threshold
Pipeline Latency Waterfall & Stream Dynamics
Cumulative Time-to-First-Audio (TTFA)
Live Audio Streaming Buffer Simulator
IDLE • READY FOR TURN
Buffer: 120ms (Safety Margin: +40ms)
Engine Architecture
ASR / VAD
LLM + Emotion
TTS 1st Chunk
Network
Total TTFA
NPC Suitability
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