Weston Ruter

Make your browser speak when <code>wp.a11y.speak()</code> is called. Requires a browser that <a href="http://caniuse.com/#feat=speech-synthesis" rel="nofollow ugc">supports <code>speechSynthesis</code></a> (which all currently do except for IE11).
This is useful for development to simulate what a user experiences when using a screen reader.

Accessibility (a11y) Speech Synthesis

Make your browser speak when wp.a11y.speak() is called.

WebsiteVoice

<h4>Add text-to-speech to your WordPress website</h4>
WebsiteVoice allows you to easily turn your WordPress articles into high-quality speech audio for your audience to listen while they’re busy multitasking or on the go.
Allow the Artificial Intelligence voices of WebsiteVoice to read your articles. Increase user engagement and accessibility for your WordPress blog.
PS: You’ll need a <a href="https://websitevoice.com/login" rel="nofollow ugc">WebsiteVoice.com token</a> to use it. Tokens are completely free for the first days, then you will have to upgrade to keep using the service.

WebsiteVoice allows you to easily turn your WordPress articles into high-quality speech audio for your audience to listen while they’re busy multitask …

Accessibility (a11y) Speech Synthesis vs WebsiteVoice