Back to the blog

Voice cloning for AI agents · ElevenLabs Pro in Hapee

Your brand has a sonic identity. Now your AI agents do too. We replicate the voice of your corporate spokesperson with 96.5% accuracy and sub-second latency. The customer calls, AI answers, but it sounds like you.

Hapi robot with a microphone and sound waves · Voice AI the cloned voice (ElevenLabs) · powered by ElevenLabs Pro

Robotic synthetic voices are the first sign that someone is talking to a bot. Customers hang up within the first 6 seconds when they detect a poorly done AI voice. It's one of the main factors that kills trust in automated phone agents.

With the new ElevenLabs Pro integration in Hapee, that problem is over. You upload 5 minutes of audio from your corporate spokesperson and the platform clones the voice at a level of accuracy that passed double-blind tests (listeners can't tell human from AI in 79% of cases).

Where it has the most impact

Customer service call centers · smart IVRs · lead qualification calls · appointment reminders · collections agents · podcasts and corporate narration. Everything that used to require a professional voice actor is now generated in your brand's voice in seconds.

What the cloned voice (ElevenLabs) includes

Cloning
You upload 5-10 min of clean audio and Hapee generates the voice model in ~3 minutes. 96.5% accuracy in internal tests.
Latency
Sub-second end to end. From the moment the user stops talking to the start of the TTS response: ~480ms on average.
Languages
29 languages with the same cloned voice. Your corporate spokesperson speaks neutral Spanish, Chilean Spanish, Portuguese and English without re-recording.
Emotion
The voice adapts to the sentiment of the conversation. Upset customer → a more empathetic, calmer voice.
Streaming
WebRTC + Twilio support for real calls in real time. It's not a pre-generated .mp3.

Setup in 15 minutes

  1. Record the source audio · 5-10 min of your corporate spokesperson (an existing Loom works). Quality: a basic USB microphone is enough.
  2. Upload to the cloned voice (ElevenLabs) · Settings → Voice → Clone. Give it a name and upload the file. 3 min of processing.
  3. Assign to agents · In each AI agent, under "Voice profile", choose the cloned voice instead of the defaults.
  4. Test in the sandbox · Call the test number, chat and validate the result. Adjust "emotional intensity" if you want it more or less expressive.
  5. Go to production · Turn it on for your team's numbers. Done: 24/7 with your voice.

Real case

A Chilean financial company with 1,200 collections calls per day. Before: 6 phone operators on shifts, monthly team cost of CLP $14M, high churn. After implementing the cloned voice (ElevenLabs) with the sales director's voice:

  • Customer response rate: +18% (a familiar voice triggers less rejection)
  • Average call time: −24% (the AI agent gets straight to the point)
  • Effective collections on first contact: +11 points
  • Operating cost: −72% by month 3

Compliance and security

Cloning requires explicit consent from the voice's owner. Hapee signs a waiver with ElevenLabs that is completed when the source audio is uploaded. The voice stays encrypted and isolated in your workspace and is not shared with other customers. Compliant with GDPR + Law 19.628 (Chile) + LGPD (Brazil).

Voice roadmap

  • Q2 · Bidirectional conversational mode with natural interruptions (you can cut the agent off and it keeps the thread)
  • Q3 · Live voice-to-voice translation (customer speaks Portuguese, agent answers in Spanish with the same cloned voice)
  • Q4 · Whisper Pro for industrial-grade transcription in Chilean Spanish with local slang

Clone your brand's voice this week.

20-minute demo · we clone your voice live · you validate the result.

Book a demo →

More from Hapee News