SpeechKit includes tools and class libraries for developing, testing, and deploying apps that recognize and synthesize speech.
Speech recognition captures and renders text representation of what is spoken. Speech Synthesis generates audio of spoken words from text.
SpeechKit simplifies the process of integrating speech recognition and speech synthesis by providing common ways in which to work with different speech APIs.
The Developer Workbench tool environment uses SpeechKit to access speech technologies and provide ways to design and test speech recognition and speech synthesis without having to write code. This way you know what works before implementing a solution based on it.
This guide discusses what you need to know about designing, testing, and deploying applications that recognize and synthesize speech.