There was no significant interaction between headphone type and reported drinks per month or marijuana use.

Participants who reported higher amounts of drinks per month and smoking marijuana within the last month had significantly higher LAeq levels than those who reported lower amounts of drinks per month and not smoking marijuana in the last month. Results: Mean LAeq was similar for the three types of headphones used. Participants listened to one hour of music using preferred headphone type with a probe microphone in the ear canal to measure equivalent continuous sound level (LAeq). Bilateral otoscopy, tympanometry, and pure-tone threshold testing (0.25–8 kHz) were completed. Survey data included self-reported alcohol and marijuana use. Methods: Two-hundred and twenty undergraduates were recruited and completed a PLD use and risk behavior survey. The purpose of this study was to explore the relationship between preferred headphone type, listening level, and other health risk behaviors. Binge drinking, marijuana, and hard drug use have also been associated with high-volume PLD use. Headphone choice can be important because certain headphones are more effective in limiting background noise than stock earbuds. John Parsons 1, Mark B Reed 2, Peter Torre III 1ġ School of Speech, Language, and Hearing Sciences, San Diego State University, San Diego, CA, USA 2 School of Social Work, San Diego State University, San Diego, CA, USAīackground: Personal listening device (PLD) use with headphones is increasing in young adults and in most listening environments occur in background noise. Headphones and other risk factors for hearing in young adults

Electroacoustics toolbox 3