Multimodal Voice AI

Voice Tool Suite Documentation

Comprehensive platform for text-to-speech and speech-to-text conversion with multilingual support and advanced AI engines

Text-to-Speech (TTS)

🎙️ Synthesis Engines

Google WaveNet
OpenAI
ElevenLabs

🌍 Language Support

220+ voices 40+ languages Regional accents

⚙️ Personalization

  • Adjustable speaking rate (x-slow to x-fast)
  • Controllable pauses (<break>)
  • Pronunciation modulation with SSML
  • Real-time preview

Speech-to-Text (STT)

🔉 Supported Formats

MP3/WAV MP4/WebM M4A/MPEG

📈 Technical Specifications

Max size:

25 MB

Duration:

Up to 4 hours

🧠 Advanced Processing

  • Automatic language detection
  • Smart punctuation
  • Speaker identification
  • Content filtering
1

Text-to-Speech Workflow

Basic Configuration

  1. Language selection (🇺🇸 en-US, 🇪🇸 es-ES, etc.)
  2. Voice selection (Alloy, Echo, PalomaNeural)
  3. Rate adjustment (0.8x – 1.5x)

Advanced Customization

SSML Tags:

<prosody rate="fast">Text</prosody>

Pauses:

<break time="500ms"/>
2

Speech-to-Text Workflow

Audio Processing

  • File upload (drag & drop)
  • Asynchronous conversion
  • Transcription formatting

Data Output

Formatted text
Copied to clipboard
API integration

🔧 Technical Specifications

System Architecture

  • WaveNet/Neural2 neural models
  • REST & gRPC API
  • Low-latency streaming

Audio Formats

MP3 WAV OGG FLAC AAC

Security

AES-256 encryption
Configurable data residency

Usage Limits

TTS per request: 5,000 characters
STT per file: 25 MB

⚡ API Integration

TTS Endpoints

POST /api/v1/tts/generate { "text": "Text to convert", "voice": "es-US-PalomaNeural", "speed": 1.2 }

STT Endpoints

POST /api/v1/stt/transcribe { "audio_url": "https://ejemplo.com/audio.mp3", "language": "es-ES" }