"Okay Google" prompt tone dissappeared???

[Kasper610]

When I say "okay Google" or tap the microphone I no longer get the tone, it just vibrates... I've already tried the accessibility/service thing, but this phone doesn't have the options they have I guess?? Anyone know how to fix this?

 

[Kasper610]

I only hear the tone when I have headphones plugged in...

 

[B. Diddy]

There's a long thread about it here: http://forums.androidcentral.com/nexus-6p/662953-why-do-i-hear-no-sound-when-i-call-ok-google.html.

Briefly:

1. Make sure TalkBack is not Disabled (in the App Manager).
2. Go to Settings>Accessibility, and turn Switch Access on.

No idea why this works, but it does!