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World Health Organization Make Listening Safe Initiative

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1.  According to WHO (2015) how many young people could be at risk for hearing loss from unsafe listening practices? 110 million 1.1 billion 10 million 10 billion

2.  According to WHO, finding solutions to mitigate the risk of hearing loss from portable listening devices: must be commercially viable and technically feasible is not practical since personal listening is ultimately an individual choice and decision is the sole responsibility of the device manufacturers all of the above

3.  The purpose of the Subgroup on Standards for Portable Audio Systems (PAS) is: To include automatic timers that shut off listening devices that reach unsafe levels To advocate for PAS use only in adults (18+) Provide guidance to manufacturers, end users and public health professionals on how to provide and make tools to make PAS use safer To increase global regulations on output/level limits

4.  Benefits to using a Portable Audio System (PAS) include: relaxation, better concentration, better defined urban space higher IQ better cardiovascular health all of the above

5.  In personal audio systems, why is dosimetry superior to volume control level limits? Because hearing loss risk is determined by the level-over-time, rather than instantaneous sound level Because dosimetry is easier to measure than instantaneous sound level Because level limits can only be determined in Bluetooth enabled devices Because volume control limits cannot be technically implemented in personal audio systems

6.  According to the "Three Levels of Acceptable Risk" paradigm, what is the 8-hr Leq for the "lowest risk" profile (no risk)? 95 dBA 105 dBA 80 dBA 75 dBA

7.  Ambient noise: has no effect on chosen listening level generally increases chosen listening level is effectively reduced to safe levels by standard 'earbud' style earphones generally decreases chosen listening level

8.  For which individuals might the most restrictive noise exposure limit be appropriate? People with pre-existing hearing loss or tinnitus Children and other individuals not capable of making informed health decisions Both A & B None of the above

9.  A framework for standards for portable audio systems should include: Dosimetry with upper threshold for level limit Health communication driven interface for the consumer Both A and B None of the above

10.  An important part of the solution to making listening safe includes: Fear mongering from parents and grandparents of children about the dangers of hearing loss Public campaigns to only use portable audio devices in quiet places Government regulations to reduce ambient noise levels in public places Public service announcements and peer-to-peer messaging about safe listening and respecting the ears