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Overview

Hume provides expressive text-to-speech synthesis using their Octave models, which adapt pronunciation, pitch, speed, and emotional style based on context. HumeTTSService offers real-time streaming with word-level timestamps, custom voice support, and advanced synthesis controls including acting instructions, speed adjustment, and trailing silence configuration.

Hume TTS API Reference

Pipecat’s API methods for Hume TTS integration

Example Implementation

Complete example with word timestamps and interruption handling

Hume Documentation

Official Hume TTS API documentation and features

Voice Library

Browse and manage available voices

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Installation

To use Hume services, install the required dependencies: 
pip install "pipecat-ai[hume]"

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Prerequisites

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Hume Account Setup

Before using Hume TTS services, you need:
  1. Hume Account: Sign up at Hume AI
  2. API Key: Generate an API key from your account dashboard
  3. Voice Selection: Choose voice IDs from the voice library or create custom voices

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Required Environment Variables

  • HUME_API_KEY: Your Hume API key for authentication