ResponsiveVoice is a Text-To-Speech API supported in 51 languages. This cross-platform HTML5-based library is open-sourced for non-commercial and non-profit use. It includes speech synthesis and speech recognition SW designed to Voice-Enable websites and apps.
Text to Speech (TTS) technology is useful for providing audible content from text for accessibility and language translation. The ProgrammableWeb TTS category contains developer resources for adding the technology to applications, including SDKs, code samples and APIs like the 9 in this article.
We've added 17 APIs to the ProgrammableWeb directory in categories including Marine, Transportation, Text-to-Speech and others. Included is an API from Pole Star that allows developers to track marine vessel navigation. Here's a summary of the new additions and how they could aid developers.