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Noise Canceling

Etymotic's HD-15 High-Definition electronic earplugs let users hear normally when things a...

If you work someplace where sudden loud noises frequently but intermittently occur, it can get kind of frustrating – you pretty much have to choose between protecting your hearing with ear plugs, or being able to hear what people are saying when it isn’t noisy. Your basic earplugs, unfortunately, don’t let you hear when things are quiet, but then activate when loud noises occur. Non-basic earplugs, however, do that very thing. Etymotic Research’s HD-15 High-Definition electronic earplugs contain tiny microphones, that instantaneously cause the plugs to block incoming sound waves when they detect noises over a given threshold. When the noise has ceased, the earplugs let the user hear normally again.  Read More

A RotoSub ANC-enabled fan inside an air flow distributor to demonstrate its noise-cancelli...

Silicon chips shuffling all those electrons around inside modern PCs, gaming consoles and home theater systems generate a lot of heat that needs to be dissipated to stop the machines going into meltdown and ruining your day. Fans are the most common form of cooling for modern electronic devices but they can generate a lot of noise that can leave your lounge room or study sounding like an airport runway. Sweden-based company RotoSub has developed an active noise control (ANC) system that is built into the fans themselves that promises to almost eliminate the fan’s mechanical noise and leave little more than the sound of the air blowing through the fan.  Read More

A schematic of an acoustic diode, showing how the elastic spheres are able to convert the ...

When it comes to the sound-proofing of buildings, most people likely think of using materials that simply absorb the sound waves in a noisy room, so they can't proceed into a neighboring quiet room. Researchers at the California Institute of Technology (Caltech), however, are taking a different approach. They have created something known as an acoustic diode, that only allows sound traveling through it to go in one direction. If incorporated into building materials, such diodes would let sound travel from the quiet room to the noisy one, but would simply block noise transmission in the opposite direction.  Read More

Owners of vehicles that exceed local allowable noise levels could start automatically gett...

It’s a situation that everyone has experienced – you’re walking down the street, when a vehicle drives by that’s so loud, people cover their ears and cast angry glances at the driver. You assume that it’s illegal to use a muffler that’s so ineffective, or to have a stereo turned up that high, but if it is ... how come so many people seemingly get away with it? Well, part of the reason is manpower. While speeders and red-light-runners can be ticketed in the thousands using automated systems, actual police officers need to go out and manually check cars and motorcycles for noise violations. The designer of Noise Snare, however, claims that his unmanned system can automatically detect and identify overly-audible vehicles.  Read More

The C18's in-line controller has a power on/battery status indicator to the top and a powe...

Armour Home recently announced that it has been appointed worldwide distributor of Phitek System's BlackBox range of Active Noise Rejection (ANR) headphones and earphones. Phitek says that the level of ambient background noise can reach 60dB in a busy street, 80dB in the office and up to 94dB in the cabin of a passenger jet. The company claims that its technology is capable of reducing ambient noise levels by 90 percent or more, and I've been sent some C18 in-ear phones for review.  Read More

A device has been developed that cancels out the noise of the dental drill, and allows you...

Hands up, who doesn't get just the teensiest bit nervous about going to the dentist? Not many of you, I'll wager. Dentophobia – fear of dentists and dental care – is one of the most common phobias, and it's the high-pitched whine of the dentist's drill that causes most anxiety. If this applies to you, take heart. You may soon be able to relax (or at least tune out the sound of the drill) and listen to music on your own MP3 player, connected to a noise-canceling device developed by Kings College London in conjunction with Brunel University and London South Bank University.  Read More

Sony has announced a new super-slim addition to its iconic Walkman range of personal media...

Nowadays most of us take portable media players pretty much for granted but back in the 1980s, when Sony released its first personal cassette player, they were revolutionary. Thirty years on and cassettes have all but gone and, despite numerous other worthy contenders, Apple holds the media player crown. For many, however, the Walkman is still regarded as the media player of choice and Sony has just revealed a new addition to its iconic family, the supermodel-thin S750. The audio and video player features noise canceling, audio enhancement technologies, a Karaoke mode and 50 hours of audio enjoyment on a single charge.  Read More

The QUIETPRO   Intelligent Hearing System protects users from loud noises, while allowing ...

It’s a problem as old as the protective earplug itself - if you block out the loud, harmful noises, you also block out the quieter sounds, such as peoples’ voices... that is, unless you’ve got a QUIETPRO+ Intelligent Hearing System stuck in your ears. The setup consists of a pair of fairly regular-looking in-ear plugs, wired iPod-style to a small electronic control unit. When the system detects a dangerously-loud noise, it automatically sends noise-canceling sound waves to the headset. When things are quiet, it amplifies sounds like human voices, so the user is actually able to hear better than they would without it.  Read More

BlueAnt's T1 Bluetooth headset with Wind Armour Technology delivers clear audio in winds u...

BlueAnt Wireless is about to release a Bluetooth headset which promises to deliver clear audio even in winds of up to 22 mph. The T1 headset also benefits from a durable design and protective silicon covers, a text-to-speech engine which announces incoming callers and audio setup guides.  Read More

The six driver per ear UE 18 Pro in-ear monitors from Ultimate Ears

Logitech's in-ear monitor maker, Ultimate Ears, has announced the forthcoming release of a new member of its professional audio family - the UE 18 Pro six high fidelity speakers per bud, noise canceling monitors. Aimed at professional musicians or dedicated quality-at-any-cost music lovers, the earphones on steroids are claimed to give the user crystal clear sounds across the whole frequency range.  Read More

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