version 54.0.2824.0 canary
Platform 8695 canary clapper
Firmware Google_clappper.5216.199.7

 
REPRO STEPS:
1.Checked "Sound on keypress" in setting page
2.Switch to any xkb vk compact layout; e.g. US
3.Long pressing key to pop up accent window (more lines accent)  
4.Slide to top line of accent window to submit it

ACTUAL RESULTS:
No sound feedback for it
refers to screenshot

Note:
Sound can be hear for following line in pop up  Accent window 
 

Deleted: Screen Shot 2016-08-12 at 2.40.20 PM.png 216 KB

	Screen Shot 2016-08-12 at 2.40.20 PM.png 216 KB View Download