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Conservation

Conservation

Hearing Protection Use Among Adults

During 2011-2012, 21 million U.S. adults who reported no work related no exposure exhibited hearing damage suggestive of noise induced hearing loss and implicated non-occupational noise exposure as a major public health concern (Carroll et al, 2017).

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The World’s Most Powerful Pair of Glasses—Part 2 of 3

We asked if you had been to seen the movie Finding Dory last week. Our specific interest was the marvelous capability of Bailey the beluga to use sound to locate objects. This bio sonar capability in toothed whales and dolphins has evolved to be so sophisticated that dolphins can detect a steel plate 1 square inch in size 100 meters away. After extolling the virtues of the use of bio sonar in these animals we left the readers with a puzzle.

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The World’s Most Powerful Pair of Glasses—Part 1 of 3

Have you seen the movie Finding Dory yet? In one of the many exciting sequences in the film, the protagonist Dory needs the help of Bailey the humpback whale to navigate through a maze of pipes. In a later, and even more exciting, sequence Bailey helps Dory keep track of a moving truck in which Dory’s friends Nemo and Marlin have become inadvertently captured.

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Don’t Try to Whisper to Your Salmon Fillet

Next time you are out to dinner and order that delicious Atlantic salmon, the chances are that it is a fillet of a farm-bred fish. Well! Don’t try to whisper to your dinner because there is about a 50 percent chance that the fish had a hearing loss. Scientists in Australia have discovered that approximately 50 percent of farm-bred salmon have a deformed otolith, the fish’s ear bone, which very likely gives them hearing loss. The deformity appears to occur early in life, and the hearing loss is speculated to get worse as the fish matures.

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Aural Acuity and Teaching Sound to the Masses

Kanters (2013) reports while trying to reach (and teach) the vast and varied members of the industries and communities associated with (the disciplines of) sound, music, and hearing science, we each use the same words/language (i.e., frequency, amplitude, and time) but (arguably) we speak different dialects. Indeed, he argues, “what we share, then, is the pursuit of technical knowledge to understand and preserve “aural acuity” driven by a passion for art and quality of life.”

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FM Systems for Veterans with Normal Hearing

Saunders et al (2014) report that in the United States, 1.7 million people report traumatic brain injury (TBI) annually. Falls and motor vehicle accidents are the leading causes of TBI and 75 percent of TBI cases are classified as mild. However, between fiscal years 2009 and 2011, approximately 58,000 service members were diagnosed with TBI.

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Metallica, Music, and Mead: An Interview with Mead Killion, PhD

Explore the topics of background noise, loudness, broadcasting, and more, as the Academy’s Web Content Editor, Douglas L. Beck, AuD, sits down with Mead Killion, PhD, founder of Etymotic Research, Inc.

Academy: Good Morning, Mead. Thanks for meeting with me.

Killion: Hi, Doug. No problem. Glad to spend some time together.

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Hearing Loss and the War in Iraq/Afghanistan

Noise-induced hearing loss (NIHL) is the third most common disability among veterans and the number one disability suffered by U.S. servicemen and women serving in the War on Terror. Some 70,000 of the 1.3 million U.S. veterans who have served in Iraq and Afghanistan are receiving disability benefits for tinnitus and 58,000 are on disability for hearing loss.

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Acoustics and Concert Halls

In a look at the acoustics integrated within concert halls, Barron (2008) reviews and explores the overlapping physics, psychology, and fashion applied to concert hall acoustics. Barron describes concert halls as “acoustic mirrors” and notes that reverb and spatiality are key ingredients in the design.

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