February 24, 2013
Mood-sensing app tells your shrink how you feel
An always-on app called Xpression, that automatically generates someone's "mood diary", could give psychologists all the data they need to help a depressed patient. New Scientist reports.
It's the brainchild of Matt Dobson and Duncan Barclay, founders of UK speech recognition firm EI Technologies.
To work, the app has to be always on, listening out for the user's voice once every second, whether they are talking to family, friends, colleagues or even pets. It also listens in on phone calls. If the user is silent, the app does nothing. Crucially for the users' privacy, it doesn't record their words, instead seeking out telltale acoustic features – like pitch – that are indicative of emotional state. ... It then lists a person's moods against the times they change, and automatically emails the list to their psychologist at the end of the day.
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