IBM Text to Speech

API

Natural-sounding text-to-speech conversion with multilingual neural voices

Overview

IBM Text-to-Speech provides RESTful APIs for converting written text into high-quality, natural speech. It supports audio formats like WAV, MP3 & OGG, plus neural voices across 20+ languages (English, Spanish, French etc.). Key endpoints include /v1/synthesize (text-to-audio) and /v1/voices (list available voices). Use cases: Accessibility tools for visually impaired users, voice-enabled apps/assistants,e-learning voiceovers & IVR systems.Response formats are audio files or JSON for voice metadata.

Example Integration (JavaScript)

script.js JS


fetch('https://cloud.ibm.com/docs/text-to-speech/getting-started.html')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful API
Multiple audio formats (WAV/MP3/OGG)
Neural voices
20+ languages supported
Expressive styles
Custom voice models
Batch processing

Frequently Asked Questions

? Is IBM Text-to-Speech free to use?

Yes, it offers a free tier (up-to ~500k characters/month). Paid plans are available for higher volumes & advanced features.

? Does IBM Text-to-Speech require an API key?

Yes, you need an IBM Cloud account to generate an API key for authenticating API requests.

? What response formats are supported?

Audio formats like WAV, MP3 & OGG for synthesized Speech; JSON for voice metadata queries.

Top Alternatives

Amazon Polly Search Google

Microsoft Azure Text-to-Speech Search Google

Google Cloud Text-to-Speech Search Google

Tool Info

Pricing Freemium

Category Development

Platform Public API

Pros

⊕ Natural-sounding output
⊕ Wide language coverage
⊕ Flexible audio options
⊕ Scalable cloud infrastructure
⊕ Comprehensive docs
⊕ IBM Cloud integration

Cons

⊖ Paid beyond free tier limits
⊖ Requires IBM Cloud account/API key
⊖ Rate limits on free usage
⊖ Advanced features need paid plans