How to Convert Text to Speech with an API

Converting text into speech is now easier than ever with the help of Text to MP3 Converter. Whether you want to generate natural-sounding audio for podcasts, audiobooks, or other projects, you can achieve professional results using text-to-speech (TTS) technology. The software provides a simple and efficient way to turn your text into spoken audio using various APIs, including Microsoft SAPI, OpenAI API, and Replicate API.

Text to Speech with Text to MP3 Converter

Text to MP3 Converter is a Windows application that allows users to convert text into spoken words and save them as MP3 or WAV files. The software supports multiple text-to-speech engines, giving users flexibility in choosing the right voice and quality for their needs.

Supported APIs

1. Microsoft SAPI – The Speech API (SAPI) is preinstalled in Windows and supports many languages, with voices such as David for English and Hortense for French. It is completely free and works offline, unlike other online APIs. While it provides basic speak functionality, it may not sound as natural as advanced AI-based solutions.
   💡 How to Add Text-to-Speech Languages in Windows
    

2. OpenAI API – OpenAI’s models provide highly realistic and human-like voices (Alloy, Echo, Fable, Onyx, Nova, Shimmer). If you need natural-sounding speech for professional projects, this API is a great choice. To use OpenAI API, you need to register a free OpenAI account and add some credits (minimum $5) before accessing the API.

   TTS: $15 per 1 million characters
   TTS HD: $30 per 1 million characters (higher-quality)

   👉 Get OpenAI API Key
   👉 OpenAI Pricing
    

3. Replicate API – Replicate offers various sample voices and allows users to clone any voice using an MP3 file URL. This makes it an excellent option for personalized voice generation. To use Replicate API, you need to register a free Replicate account and enter your credit card before accessing the API. Replicate's usage-based pricing is very affordable. You only pay for what you use on Replicate, billed by the second.
   
   👉 Get Replicate API Key
   👉 Replicate Pricing

How to Use an API for Text to Speech

Follow these simple steps to convert text into speech using Text to MP3 Converter:

1. Download and Install – Get Text to MP3 Converter and install it on your laptop or desktop computer.
2. Use the File Menu – Access the text-to-speech options through the File menu:
   • New (Classic) → Uses Microsoft SAPI.
   • New (OpenAI) → Uses OpenAI API.
   • New (Replicate) → Uses Replicate API.
3. Enter Your Text – Type or paste the text you want to convert.
4. Configure Settings – If using OpenAI or Replicate API, enter your API key and choose a preferred voice.
5. Convert and Save – Click the button to generate the speech and save it as an MP3 or WAV file.

Why Use Text to MP3 Converter?

• Easy to Use – A user-friendly interface makes it accessible for all experience levels.
• Offline Support – Microsoft SAPI enables basic text-to-speech conversion without an internet connection and is completely free.
• Multiple API Options – Choose from different text-to-speech engines based on your needs.
• High-Quality Output – OpenAI API delivers natural voices, and Replicate API allows voice cloning.

Conclusion

If you are looking for a reliable way to convert text to spoken audio using APIs, Text to MP3 Converter is an excellent choice. With support for Microsoft SAPI, OpenAI API, and Replicate API, it provides multiple options to generate high-quality speech output. Whether you need a quick conversion or a custom voice, this software can meet your needs effectively.