Wikimedia Deutschland announced that a German library for the blind (DZB, Leipzig) will use its human resources to give Wikipedia articles a voice. 50 professional speakers of the library, like actors and linguists, will provide the spoken versions of a large number of (good) articles. In October this year, every Article of the Day will have a spoken version.
Wikipedia in German has a Wiki-project Gesprochene Wikipedia since 2004 which became a model for many other Wikipedia language versions. The quality of the ca. 400 spoken versions can be very diverse, of course. On a Wikipedia seminar, user: Souffleuse explained us how to do proper recordings, and I found it was quite a lot of work. Now, WM-DE hopes that the Wiki-project will gain more prominence, and has plans for an audio book.