Hm, I hadn't noticed before, but selecting text in the message view doesn't enable the "Start Speaking". Only selecting text in an editable field (such as the message field) will work. Odd!
Actually, looking at, it's not that surprising - Safari doesn't even have that in it's Edit menu. Likely WebKit doesn't support it due to the large amount of extra text [source], graphics, fields, etc. that can be selected. Basic text controls like text views and fields would be candidates for support, as evinced by Dave's comment.
dchoby98 wrote:That's what he was referring to, actually.
Bummer!!! I thought he was havin trouble with the text to speech from Adium's edit menu. The txt to speech within services works fine for every window in Adium as long as you highlight the text.
The speak txt option in adium's edit menu does not work in all windows regardless of what you highlight.