Your Smartphone May Detect Drunk Speech

Stanford ER docs collaborating with University of Toronto bioengineers have developed speech analysis models for phones and also for smart speakers capable of detecting alcohol intoxication with 98% accuracy. The researchers tested their algorithm on a small group of 18. Nearly three-quarters of the subjects were male with ages ranging from 21-62 years. The participants were asked to read a tongue-twister after drinking an excess of weight-based alcohol over a 7 hour period. The speech spectrographic patterns could predict a blood alcohol level over 0.08% and higher with a 98% sensitivity, a 97% specificity and positive predictive value, and a 98% negative predictive value. It won’t be long before your car demands an error-free rendition of the flag pledge before sparking the ignition.

https://www.jsad.com/doi/10.15288/jsad.22-00375

#smartphone #smartspeaker #alcohol #breathalyzer #voicespectrum #intoxication