iSpeech.org, a text-to-speech developer, has launched a text-to-speech converter for publishers. As reported by GigaOm earlier this year:
iSpeech gives publishers three options for creating content. They can convert PDFs to audio files; they can add a widget to a website that essentially adds a “play” button to an article; or they can use more sophisticated developer tools built on iSpeech’s API and add them directly to their web pages. Pearson is using the PDF option for its textbooks. Evernote is using the developer tools to integrate speech technology into its web reading platform Evernote Clearly.
Text-to-speech, while not full-blown recorded audio of text, allows those with print disabilities to consume textual works. More about iSpeech's widgets and other tools can be found here.