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Sound


— Wearable Electronics

Enjoy the silence? QuietOn's active noise cancelling earplugs skip the music

Noise cancelling technology, which is widely used in headphones, lets users drown out background distractions to hear their music better. But what if you don't want to hear anything at all? Standard earplugs often don't cut it (or bring inconveniences of their own), so the new QuietOn earplugs use active noise cancelling (sans music) to minimize what users can hear.

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— Electronics

Sensor detects sound direction and cuts background noise

Although the ability tends to wane as we get older, the human auditory system is pretty good at filtering out background noise and making a single voice able to be understood above the general hubbub of a crowded room. But electronic devices, such as smartphones, aren't quite as gifted, which is why getting Siri or Google Now to understand you in crowded environments can be an exercise in futility. But now researchers have developed a prototype sensor that’s not only able to figure out the direction of a particular sound, but can also extract it from background noise.

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— Home Entertainment Review

Review: Nano HiFi NH1 Bluetooth boombox

The world of products competing for your ears these days is incredibly crowded, from the multitude of budget Bluetooth speakers on up to Sonos and others aiming to drag your dad's treasured hi-fi into the 21st century with top-notch wireless sound. The Nano HiFi NH1 falls somewhere toward the latter end of the spectrum, but maintains a notable level of portability and affordability. Gizmag had the opportunity to play part of our northern summer soundtrack over this nifty setup and we came away with this review.

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— Wearable Electronics

Here Active Listening earbuds: Audio adjustment for the real world

We've already heard about electronic earplugs that only block sound when loud noises occur, or that amplify human voices. Doppler Labs' Here Active Listening system, however, takes things a step further. Consisting of an app-controlled pair of wireless earbuds, it lets users filter out or enhance audio frequencies in real-world ambient sound before it reaches their ears.

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— Aircraft

Thin rubber membrane keeps a lid on cabin noise

In modern airliners, much of the structural paneling used in the cabin and wings has a honeycomb-like structure. Although this helps keep the weight down while maintaining strength, it does a poor job at blocking noise within the aircraft. That's why researchers from North Carolina State University and MIT have developed a membrane that helps the panels to do so. Read More
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