Voice AI Agents

The Voice AI Agents feature enables real-time voice conversations with AgentDock agents through advanced speech-to-speech capabilities, creating natural, interactive experiences through web applications and phone systems.

Current Status

Status: Planned

Development of the Voice AI Agents system has been designed with a focus on leveraging cutting-edge real-time speech models and integration with the existing AgentDock architecture.

Feature Overview

The Voice AI Agents feature will provide:

Real-time Voice Interaction: Near-instantaneous speech-to-speech conversations
WebRTC Integration: Low-latency audio streaming for web applications
Phone Number Access: Connect agents to traditional phone systems via Twilio
Multi-provider Support: Flexibility to use OpenAI Realtime API, ElevenLabs, and other providers
Voice Node Abstraction: Standard interface extending the PlatformNode architecture

Architecture Diagrams

Voice Node Architecture

Speech Processing Pipeline

Real-time Voice Communication

Implementation Details

The Voice AI Agents system will be implemented with the following components:

// Abstract class for voice-based interactions
abstract class VoiceNode extends PlatformNode {
  // Process incoming audio stream
  abstract processAudioStream(audioStream: ReadableStream): Promise<void>;
  
  // Generate speech from agent response
  abstract generateSpeech(response: Message): Promise<ReadableStream>;
  
  // Handle real-time audio session
  abstract handleAudioSession(sessionId: string): Promise<void>;
  
  // Initialize voice provider
  abstract initializeVoiceProvider(config: VoiceProviderConfig): Promise<void>;
}

// Configuration for voice providers
interface VoiceProviderConfig {
  provider: 'openai' | 'elevenlabs' | 'sesame';
  apiKey: string;
  modelId?: string;
  voice?: string;
}

Voice Provider Support

The system will integrate with leading voice AI providers:

OpenAI Realtime API: End-to-end speech-to-speech with GPT-4o
ElevenLabs: High-quality voice synthesis and voice-to-voice capabilities
Sesame AI: Advanced voice models with natural conversational abilities

Integration Methods

WebRTC for Browser Applications

// Example of creating a WebRTC voice node
import { createWebRTCVoiceNode } from '@/lib/voice/webrtc-factory';

// Create a WebRTC voice node with an existing agent
const voiceNode = createWebRTCVoiceNode('voice-1', agentNode, {
  provider: 'openai',
  apiKey: process.env.OPENAI_API_KEY!,
  modelId: 'gpt-4o-realtime'
});

// Set up audio stream
await voiceNode.setupAudioStream(webrtcConnection);

Twilio for Phone Number Access

// Example of creating a Twilio voice node
import { createTwilioVoiceNode } from '@/lib/voice/twilio-factory';

// Create a Twilio voice node with an existing agent
const twilioNode = createTwilioVoiceNode('phone-1', agentNode, {
  accountSid: process.env.TWILIO_ACCOUNT_SID!,
  authToken: process.env.TWILIO_AUTH_TOKEN!,
  phoneNumber: process.env.TWILIO_PHONE_NUMBER!,
  voiceProvider: {
    provider: 'elevenlabs',
    apiKey: process.env.ELEVENLABS_API_KEY!,
    voice: 'Josh'
  }
});

// Set up webhook for incoming calls
await twilioNode.setupWebhook();

Key Features

End-to-End Voice Interaction

The system leverages frontier voice AI models for seamless conversations:

Direct Voice Processing: Uses provider APIs for speech-to-speech conversion
Continuous Streaming: Processes audio in real-time for natural conversation flow
Low Latency: Maintains responsive interactions with minimal delay

Voice Provider Flexibility

Select the right voice technology based on your needs:

OpenAI Realtime: End-to-end speech model with conversational capabilities
ElevenLabs: Superior voice quality and natural-sounding synthesis
Sesame: Human-like voice with natural pauses and prosody

Phone System Integration

Connect agents to traditional phone systems:

Twilio Integration: Assign phone numbers to agents
Outbound Calling: Initiate calls to users
Inbound Support: Receive and process incoming calls
Call Analytics: Track conversation duration and metrics

Benefits

The Voice AI Agents feature delivers several important benefits:

Natural Interaction: Voice is the most intuitive human interface
Accessibility: Provides service to users without technical expertise
Multimodal Support: Combine with text and visual responses
Global Reach: Connect through universal phone systems
Enterprise Communication: Professional voice representation

Timeline

Phase	Status	Description
Design & Architecture	Planned	Core architecture design
Voice Node Abstract Class	Planned	Base class implementation
WebRTC Integration	Planned	Browser-based voice support
OpenAI Realtime Integration	Planned	Initial voice provider
ElevenLabs Integration	Planned	Additional voice provider
Twilio Phone Integration	Planned	Phone number access
Advanced Voice Features	Future	Voice customization options

Connection to Other Roadmap Items

The Voice AI Agents feature connects with other roadmap items:

Platform Integration: Extends the platform node architecture for voice
Advanced Memory Systems: Provides context for personalized voice interactions
Natural Language AI Agent Builder: Create voice-enabled agents with natural language
Agent Marketplace: Share voice agent templates