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Artificial intelligence can now more accurately detect whether you’re depressed by analyzing the sound of your voice, thanks to new research by University of Alberta

computing scientists. Using two standard benchmark sets of audio recordings ranging from five to 50 minutes long, PhD student Mashrura Tasnim and professor Eleni Stroulia developed a method that combines several machine-learning algorithms to recognize depression more accurately from acoustic cues.

The researchers built on past studies suggesting the timbre of our voice contains information about our mood. The ultimate goal is to develop helpful applications from the technology, Stroulia explained. “A realistic scenario is to have people use an app that will collect voice samples as they speak naturally. The app, running on the user’s phone, will recognize and track indicators of mood, such as depression, over time,” she said.

“Much like you have a step counter on your phone, you could have a depression indicator based on your voice as you use the phone.”
About 11 per cent of Canadian men and 16 per cent of Canadian women will experience major depression at some point in their lives, according to the Government of Canada. And 3.2 million Canadian youth aged 12 to 19 are at risk for developing depression, according to the Canadian Mental Health Association.

Such a tool could help people reflect on their own moods over time or be used to work with mental health service providers, the researchers said. “This work, developing more accurate detection in standard benchmark data sets, is the first step,” noted Stroulia.
The study, “Detecting Depression From Voice,” was presented at the Canadian Conference on Artificial Intelligence earlier this year.


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