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Overview

RivaTTSService provides high-quality text-to-speech synthesis through NVIDIA Riva’s cloud-based AI models accessible via gRPC API. The service offers multilingual support, configurable quality settings, and streaming audio generation optimized for real-time applications.

Riva TTS API Reference

Pipecat’s API methods for NVIDIA Riva TTS integration

Example Implementation

Complete example with Riva NIM

NVIDIA Riva Documentation

Official NVIDIA Riva TTS documentation

NVIDIA Developer Portal

Access API keys and Riva services

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Installation

To use NVIDIA Riva services, install the required dependencies: 
pip install "pipecat-ai[riva]"

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Prerequisites

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NVIDIA Riva Setup

Before using Riva TTS services, you need:
  1. NVIDIA Developer Account: Sign up at NVIDIA Developer Portal
  2. API Key: Generate an NVIDIA API key for Riva services
  3. Riva Access: Ensure access to NVIDIA Riva TTS services

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Required Environment Variables

  • NVIDIA_API_KEY: Your NVIDIA API key for authentication