Read docs Updated 2026-06-16
What is IBM Text to Speech?
The API provides text-to-speech conversion from text input to audio output.
It is useful for developers building applications that require speech synthesis functionality.
What you can build with IBM Text to Speech
Accessibility in mobile and web apps
Convert on-screen text to audio for visually impaired users or hands-free scenarios.
IVR and customer service bots
Generate spoken responses from dynamic text in telephony or chat systems.
Narration for e-learning content
Produce audio tracks from lesson scripts or documentation without recording voice actors.
Get started with IBM Text to Speech
- 1Create an IBM Cloud account and generate an API key
- 2Choose a voice and language from the available models
- 3Send an authenticated HTTPS POST to the synthesize endpoint
- 4Receive and play or store the returned audio stream
- 5Track usage and costs in the IBM Cloud dashboard
IBM Text to Speech: pros & cons
Pros
- +Natural-sounding voices across many languages
- +Simple API key authentication over HTTPS
- +Reliable enterprise-grade uptime
- +Easy integration with other IBM Cloud services
Cons
- –Requires an IBM Cloud account
- –Usage is metered and can incur costs
- –Needs stable internet for every request
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A cloud service that converts input text into audio speech output using API key authentication over HTTPS.
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