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Web based framework for subjective evaluation of speech synthesis.

See also: Festvox


  • Run listening-tests on the web
  • Supports commonly used listening tests
  • Compatible with Amazon M-Turk for crowdsourced listening tests
  • Cross-browser compatible (requires Javascript and Flash in browsers)
  • Host tests locally (Linux/Windows/OSX) or deploy them over Google App Engine

Get Started

Recommended: Download TestVox as a prebuilt-package and start with the steps in TestVox_HOWTO.

You can also download the latest source code and build it. See TestVox_Development for details.


The TestVox framework, tools and documentation are all free without restriction (commercial or otherwise). See LICENSE file for details.

Copyright (2012--2013) Carnegie Mellon University

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