Author: Stefani Kim

Sound Level Suppressors for Firearm Noise Reduction: Implications for Hearing Conservation

Sound level suppressors (also known as “silencers”) on firearms reduce—but do not eliminate—hazardous noise exposure, especially for AR-15 or similar semiautomatic rifles. At this time, the best advice is dual use of both HPDs and suppressors—particularly for those shooting weapons that produce dangerously high sound levels. For shooters who are reluctant to use HPDs, electronic HPDs should be considered as an option.

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Towards a Firm Grip on Auditory Reality

What is a realistic SNR and how should we test and assess features such as noise reduction algorithms? This article presents two studies that emphasize the importance of auditory reality on the design, fitting, and evaluation of hearing aids—with the hope of moving towards a firm grip on auditory reality.

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The Costco Effect

Does the presence of hearing aid dispensing Costco locations influence nearby private practices’ hearing aid revenue and average sale price performance? This study analyzes the relationship between the proximity of Costco locations and Audigy members’ hearing aid sales performance. Results indicate nearby Costco locations have a neutral to weak positive impact on Audigy members’ hearing aid revenue and average sale price.

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