Because of known limitations with DRM-protected content (such as Adobe Digital Editions), it's recommended to download eBook chapters from EBSCO eBooks and Ebook Central, then open the downloaded chapters with a text-to-speech tool or copy the text from the viewer into a text-to-speech tool.
More information can be found at EBSCO eBook Accessibility User Guide and FAQs and Accessibility Statement: Ebook Central
To use a screen reader without the download/upload procedure in Ebook Central:
Ebooks from Springer, Project Muse, JSTOR, Oxford, Cambridge, and Taylor & Francis are DRM-free which means you can download them without any restrictions. You may upload or paste eBooks from these publishers into a screen reader.
The Internet Archive makes ebooks freely available for people with print disabilities--which may be defined very broadly--to use in conjunction with screen readers. You'll need to fill out a form linked on their site to obtain appropriate permissions to access this collection.
Search Google for "text to speech" or "tts reader" for more options.
This work is licensed under CC BY-NC 4.0