Text to Speech
Convert text into natural-sounding speech using advanced AI voice synthesis models.
The Text to Speech (TTS) demo application transforms written text into high-quality spoken audio. It leverages state-of-the-art AI models to generate lifelike voices in various languages and styles.
Features
Discover the powerful capabilities of this AI-powered voice synthesis solution:
5,000+ voices
Access a wide range of voices from providers like Eleven Labs, including different accents, ages, and emotional tones, to find the perfect match for your content.
Real-time audio streaming
Experience near-instantaneous audio generation with streaming delivery, providing immediate feedback as your content comes to life.
Integrated audio player
Enjoy a full-featured playback interface with precise controls for playback speed and convenient options to download generated audio files.
Voice customization
Fine-tune your audio output with adjustable parameters for pitch, speed, and pauses, creating the most natural and engaging delivery possible (available options vary by provider).
Intuitive user experience
Benefit from a thoughtfully designed interface that makes transforming text to speech effortless and efficient, even for first-time users.
AI models
This application primarily utilizes specialized text-to-speech models from Eleven Labs.
For comprehensive information about available voices and advanced customization techniques, consult the ElevenLabs SDK documentation.
Structure
The Text-to-Speech feature is organized across the monorepo for maximum flexibility and maintainability:
Core
The @turbostarter/ai package (packages/ai) contains the essential logic under modules/tts:
- Comprehensive types, validation schemas, and constants specific to TTS functionality
- Core API logic for processing text-to-speech requests and interfacing with AI models
- Robust handling of generated audio file uploads to cloud storage
API
The packages/api package defines the backend API endpoints using Hono:
src/modules/ai/tts/tts.router.ts: implements Hono RPC routes for TTS generation, handles input validation, applies critical middleware (authentication, credit management), and invokes the core functionality from@turbostarter/ai.
Web
The Next.js application (apps/web) provides the user interface:
src/app/[locale]/(apps)/tts/**: contains the Next.js App Router pages and layouts for the TTS experiencesrc/components/tts/**: houses reusable React components specific to the TTS interface (text input area, voice selector, audio player, etc.)
Mobile
The Expo/React Native application (apps/mobile) provides the native mobile experience:
src/app/tts/**: defines the screens for the mobile TTS interfacesrc/components/tts/**: contains React Native components optimized for the mobile experience- API interaction: utilizes the same Hono RPC client (
packages/api) as the web app for consistent communication with the backend
This architecture ensures perfect consistency between platforms while allowing for optimized UI implementations tailored to each environment.
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