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🗣️ (Alpha) iApp Text-to-Speech (TTS) 🆕

🗣️ AI-powered text-to-speech synthesis API

Version Status New

Welcome to iApp TTSv3 API, a cutting-edge text-to-speech synthesis service that converts text into natural-sounding speech. Our API uses an advanced AI model to generate audio from text input with excellent accuracy and speed.

Try Demo​

Demo key is limited to 10 requests per day per IP
Click here to get your API key



Getting Started​


Prerequisites​


    

  • Text input in Thai language
    • 

  • Maximum tokens: 1400
    • 

  • Output format: WAV
    • 



Quick Start​


    

  • Fast processing with GPU acceleration
    • 

  • Natural speech generation
    • 

  • High-quality speech output
    • 



Key Features​


    

  • Natural speech synthesis using state-of-the-art AI
    • 

  • Advanced voice quality tuning via parameters
    • 

  • High-speed response times
    • 

  • Simple REST API interface
    • 



API Usage​


Endpoints​


    

  • POST /tts - Generate speech from text and download as a file
    • 



API Request Examples​


Using cURL:​


# Health check
curl https://api.iapp.co.th/v3/audio/health

# Generate speech and save to file
curl -X POST https://api.iapp.co.th/v3/audio/tts \
  -H "Content-Type: application/json" \
  -d '{"text":"Hello, this is a test.","temperature":0.2,"top_p":0.95}' \
  --output test.wav


Using Python:​


import requests

# Text-to-speech request
response = requests.post(
    "https://api.iapp.co.th/v3/audio/tts",
    json={
        "text": "สวัสดีครับ",
        "temperature": 0.2,
        "top_p": 0.95,
        "max_new_tokens": 1400
    }
)

# Save the audio response to a file
with open("output.wav", "wb") as f:
    f.write(response.content)


Request Parameters​


ParameterTypeDescriptionDefault
textstringText to convert to speechRequired
temperaturefloatGeneration temperature (higher = more random)0.2
top_pfloatTop-p sampling parameter0.95
max_new_tokensintegerMaximum number of tokens to generate1400


Best Practices​


    

  • Use proper punctuation for better speech synthesis
    • 

  • Keep sentences natural and conversational
    • 

  • For long text, consider breaking it into smaller segments
    • 

  • Adjust temperature and top_p parameters to control voice style:

      

    • Lower temperature (0.1-0.5): More consistent, stable voice
      • 

    • Higher temperature (0.6-1.0): More expressive but less predictable
      • 

    

    •