Help Moto X peeps

[edcooper714]

My wife's Moto X makes a "peeping" sound every once in a while.
One quick peep like a bird. Happens maybe 3 times a day with no time pattern.
Her settings are identical to my Moto X.
Anyone ever experience this?
It's driving us nuts!

 

[edcooper714]

My wife's Moto X makes a "peeping" sound every once in a while.
One quick peep like a bird. Happens maybe 3 times a day with no time pattern.
Her settings are identical to my Moto X.
Anyone ever experience this?
It's driving us nuts!

JUST CAME TO ME. FIXED!!!!!
The one app she has that I don't have is Yahoo mail. I went in and saw that the 'peep' was the default Yahoo mail notification sound.
EUREKA!!