Voice AI that feels real-time, not robotic.
Whisper for transcription. ElevenLabs and OpenAI for voices. Realtime API for live voice agents. Streamed end-to-end so users don't feel the latency.
What's included
Production-grade voice AI integration that ships, not theater.
- Whisper streaming transcription
- ElevenLabs / OpenAI TTS with voice cloning
- OpenAI Realtime API for live voice agents
- Multilingual (Korean, English, JP, ES, etc.)
- Echo cancellation + VAD
- Conversation memory + tool use
What you walk away with
Deliverables you keep — code, infrastructure, and the runbook.
- Deployed voice feature with streaming UX
- Latency budget + measurement
- Voice quality tuning
- Cost per minute analysis
Frequently asked
How fast is realtime voice in practice?+
End-to-end latency 400-700ms with OpenAI Realtime API and good network. Whisper streaming + TTS is 800ms-1.5s. Both feel conversational; Realtime feels phone-call native.
Can voice agents handle interruption?+
Yes — Voice Activity Detection (VAD) detects user speech, model gracefully stops generating, listens, and resumes appropriately.
What about non-English voice quality?+
ElevenLabs and OpenAI TTS have strong multilingual support. Korean, Japanese, Spanish, Portuguese, French tested. Quality varies — I sample voices for your target language before locking in.
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From $14,000Ready to scope your voice AI integration?
Email me what you're building. I'll respond with a quote, scope questions, and a clear next step.