WEST LAFAYETTE, Ind., 11 (UPI) -- U.S. scientists were developing a new technique to diagnose hearing loss to more accurately reflect real-world situations."The traditional way to assess speech understanding in people with hearing loss is to put them in a quiet room and ask them to repeat words produced by one person they can’t see,” said Purdue University Professor Karen Iler Kirk. “The goal of our research is to develop new tests that reflect more natural listening situations with visual cues, different background noises, voice quality, dialects and speaking rates.