51.0.2704.37 beta

TEST CASE 

"1. Press ctrl+alt+z and wait a few seconds

Verify:
    - the welcome voice speaks in the correct language
    - the black ChromeVox tray is shown at the top of the screen  
    - words displayed on the tray are in the correct language
"

RESULTS 

Issue 1 (GOOGLE-3966): Voice speaks in heavy German accent. This is because German is selected as the default Voice (as discovered in next test case). See Screenshot 1.