Tag Archive: sound

“A Quiet Place” is so quiet

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that the audience is afraid of making noise. Reports have popped up saying the movie is so quiet that its audience is “too scared to eat their popcorn” because of the deafening silence. Not a bad thing in our book.

And apparently some others agree. Check out this review by Gary Thompson, The Philadelphia Inquirer: ‘A Quiet Place’: Aliens rid the earth of noisy people. Hear, hear.

 

 

Your outer ears are important to hearing, too

Photo credit: Travis Isaacs licensed under CC BY 2.0

by Daniel Fink, MD, Chair, The Quiet Coalition

Those of us concerned about noise and hearing focus on noise damaging the inner ear and associated nerve structures, but the outer ear has an important role to play in hearing. It collects sound waves and directs them to the external auditory canal, but it also does more.

This report in the Science section of the New York Times discusses how the shape of the external ear helps humans determine exactly where a sound came from.

We can protect our hearing either by covering the pinna–the part of the external ear that we see–with ear muff hearing protection, or inserting ear plugs into the other part of the external ear, the external auditory canal. What’s important is to choose a method to protect your hearing and stick with it.

Dr. Daniel Fink is a leading noise activist based in the Los Angeles area. He serves on the board of the American Tinnitus Association, is the interim chair of Quiet Communities’s Health Advisory Council, and is the founding chair of The Quiet Coalition, an organization of science, health, and legal professionals concerned about the impacts of noise on health, environment, learning, productivity, and quality of life in America.

This is fascinating

if a bit difficult for us non-STEM types to follow: Scientists can store light as sound moving us “[o]ne step closer to computers that process data at the speed of light.” According to Fiona MacDonald, Science Alert, storing “light-based information as sound waves on a computer chip…is critical if we ever want to shift from our current, inefficient electronic computers, to light-based computers that move data at the speed of light.”

And then our artificially intelligent robots can enslave us faster.

Still, the piece is interesting.  Click the first link to read the whole thing.

U.S. ends “noiseless” electric cars

U.S. Department of Transportation, National Highway Traffic Safety Administration has finalized rules regarding electric vehicles requiring that “any four-wheeled vehicle with a GVWR of less than 10,000 pounds must emit a pedestrian-warning noise at speeds below 18.6 miles per hour.”

So what will the pedestrian-warning sound like? It’s not been determined yet, writes Steph Willems, Hybriedcars.com, noting that people who have driven an electric vehicle with a pedestrian-warning noise find it “can be unsettling, even unpleasant.” Willems adds that the NHTSA hasn’t yet decided whether to give drivers a choice of sounds, though “automakers hope to have owners select from a list of regulator-approved warning tones.”

Let’s hope that someone with some taste and sense is involved in the decision-making, because the consequences of allowing brand managers and marketers to make that decision is, at best, horrifying.

The only instance where having noisy neighbors is a good thing

Photo credit: Anker A and Grave S licensed under CC BY 3.0

Noisy shrimp may be helping gray whales find their prey.  Jes Burns, OPB.org, writes about snapping shrimp, a variety of shrimp researchers at Oregon State University have heard, but not seen. How do these shrimp make so much sound?  Burns writes:

There’s a popping static created by thousands of shrimp claws pushing out jets of water at extremely high speed. The speed and disturbance create a tiny bubble that immediately collapses, creating a noise so loud and strong it can to stun prey a few inches away.

The researchers noticed that “the rocky areas where the shrimp live are also home to swarms of tiny zooplankton that whales love,” which made them wonder whether the whales use the shrimp as a tool to find food since they use sound to find prey. More study will be done to determine whether the hypothesis is correct.

And if, in the interim, you want to hear was thousands of snapping shrimp sound like, click below:

Listen to “What Snapping Shrimp Sound Like” on Spreaker.