Word 2010 speak selected text limit?

I often use MS Word 2010's "speak selected text" feature to help edit portions of the text I write. The highlighted text plays back fine, but sometimes it just stops after a few hundred words, even though I've highlighted more text. Is there a limitation to the amount of text that can be played back at a time? Is that why playback just stops? Thanks.

The limit is 4096 characters, including spaces. Note that paragraph and page breaks are counted as one character included in max amount of characters. Limit is the same in Word 2010, 2013 and 2016

In English text that translates to roughly 700 to 800 words, about 1¼ to 1½ pages (default Calibri 11pt font).

Kari

Thank you, Kari.

You are welcome.