Description from extension meta
Tool for developers of Chrome TTS engine extensions to help them test their engines are implementing the API correctly.
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Description from store
If you're a developer working on a text-to-speech (TTS) extension for Chrome, this app gives you a test suite to make sure your extension is working properly. It has a combination of manual tests that you can listen to, and automated tests that use callback timing information to make sure things are working correctly.
This extension is open-source. The source code is available at:
http://code.google.com/chrome/extensions/trunk/samples.html#chrome.tts