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Conversational AI Engine: Create advanced voice apps by combining Agora’s real-time audio with powerful conversational AI.

Hume AI (Beta)

Hume AI provides emotion-aware text-to-speech technology that generates natural, expressive voices with emotional intelligence. The platform offers both curated voices from the Voice Library and support for custom voice creation, enabling personalized audio experiences.

Sample configuration​

The following example shows a starting tts parameter configuration you can use when you Start a conversational AI agent.


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"tts": {
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"vendor": "humeai",
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"params": {
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"key": "<API_KEY>",
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"voice_id": "",
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"provider": "HUME_AI",
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"speed": 1,
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"trailing_silence": 0.35
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}
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}

Key parameters​

paramsrequired
  • key stringrequired

    The API key used for authentication with Hume AI's services. Get your API key from the Hume AI console.

  • voice_id stringrequired

    The identifier for the selected voice for speech synthesis. Choose from available voices in your Hume AI dashboard.

  • provider stringrequired

    Default: CUSTOM_VOICE

    Possible values: HUME_AI, CUSTOM_VOICE

    The voice provider type.

    • "HUME_AI": Use a pre-built voice from Hume's curated Voice Library.
    • "CUSTOM_VOICE" Use your own custom-trained voice.
  • speed numbernullable

    Default: 1

    Possible values: 0.25 to 3.0

    Controls the playback speed of the generated speech. Higher values increase speech rate.

  • trailing_silence numbernullable

    Default: 0.35

    Possible values: 0 to 5

    Duration of silence (in seconds) to add at the end of each utterance. Useful for natural conversation pacing.

For advanced configuration options, available voices, and detailed parameter descriptions, see the Hume AI TTS documentation.