Concordia University

An AI model accurately tracks emotions like fear and worry in the voices of crisis line callers, according to new research. The model’s developer hopes it can provide real-time assistance to phone operators as they work to prevent suicides.

3D printing typically involves depositing layers of molten plastic, laser-melting powdered metal, or using UV light to harden gelatinous resin. A new technique takes yet another approach, however, by utilizing sound waves.