Babies don't come with a manual, but a new app is helping to take some of the guesswork out of their cries.
The app is the brainchild of a doctor at the UCLA along with a team of volunteers.
Known as ChatterBaby, the free app was initially created to help deaf parents figure out what their child needs.
But even people with full hearing have trouble differentiating between whether junior's hungry, fussy or in pain.
The team developed an algorithm that identified the characteristics of each type of cry, like changes in pitch, frequency, pauses. Using this information, the algorithms nearly correctly identified features of cries.
The creator hopes this app will also help users identify autism in their children earlier.