Menu
All about computers
Google Plus racks up followers, but not all are devoted
Social media enables interactive jukebox
Social media puts HR ethics under the spotlight
Zuckerberg, Brin join forces to extend life
LinkedIn buys news app Pulse to broaden content
China, Romania key sources of hacking, report says
Japan, China, S. Korea to cooperate on air pollution
UP fitness wristbands get in stride with Android gadgets
More videogame players moving online
The new consoles from Microsoft, Nintendo and Sony
Tablet sales surge as consumers shun PCs
Coupled particles cross energy wall
High-efficiency zinc-air battery developed
Facebook unveils its 'home' on Android phone
A smartphone app to verify halal products
Google's Motorola to cut 10% of workforce
Google's recipe for excitement
Genetic analysis saves major apple-producing region of Washington state
Android gains US share at Apple expense, survey finds
China social media hailed after official toppled
Twitter tightens security after high-profile breaches (Update)
Tumblr deal sparks talk on next big tech target
Social game star Zynga slashes staff, closes studios
Apple prepares for first debt issue
New speaker system creates separate 'audio zones' for front and rear
Ever wish that your car's interior cabin could have separate audio zones for the front and rear seats? It soon may.

A new approach achieves independent listening zones within a car by using small, modified speakers to produce directional sound fields and a signal processing strategy that optimizes the audio signals used to drive each of the speakers. The new design will be presented at the 21st International Congress on Acoustics (ICA 2013), held June 2-7 in Montreal.

Today, car cabins often reverberate with the sounds of music, video soundtracks, navigation system instructions, telecommunications, and warning sounds. Problems arise, however, when occupants of the same car want to listen to different programs. The driver may require navigation system instructions and warning sounds, while the kids in the back seat want to watch a movie. Intergenerational audio conflict might be avoided, however, with a new type of car speaker system.

"We've begun developing an audio reproduction system capable of producing independent listening zones in the front and rear seats of a car cabin without the use of headphones," says Jordan Cheer, Research Fellow in Active Control at the Institute of Sound and Vibration Research at the University of Southampton, UK. "Our system uses standard car audio loudspeakers, which are usually mounted in the doors of the car, at low frequencies, and these are complemented by a set of small loudspeakers mounted to the headrests."

"Our complete system is able to achieve a significant level of isolation between the front and rear seating positions to provide independent listening zones for the front and rear cabin occupants," Cheer says.

The necessary degree of isolation between the two listening zones depends on the audio program, he explains. For example, if speech is being reproduced at the front seats and pop music is playing in the rear seats, a higher level of isolation is required than if pop music were playing in both zones.

Future work on the system will factor in the effect of the audio program selection on the required system performance. Based on this information, the researchers will continue to explore improvements to both loudspeaker configuration and digital signal processing.
No health risk from Fukushima radiation, UN says
How flames change the sound of a firefighters' personal safety alarm
New Zealand police ordered to return Dotcom material
Australia spy chief says new building safe
Dell board recommends Michael Dell buyout offer (Update)
Micro-capsules and bacteria to be used in self-healing concrete
New nerve and muscle interfaces aid wounded warrior amputees
Ultrasound 'making waves' for enhancing biofuel production
USSR's old domain name attracts cybercriminals
Researchers design sensitive new microphone modeled on fly ear
New speaker system creates separate 'audio zones' for front and rear
Transportation fuels from woody biomass promising way to reduce emissions
Our ambiguous world of words
India's Infosys recalls founder as woes mount
Google interns meet their Hollywood counterparts
China trying new form of 'Internet censorship'
Motorola on authentication: We're talking tattoos and pills
US judge orders Google to turn over data to FBI
Yahoo! wraps US music tour with fun
Berlin company counts on the autistic
Adamant Apple in court to fight ebook conspiracy
Thousands rally against nuclear power in Tokyo
Push for US Internet 'wiretap' law faces tough road
Google nixes face-recognition features in Glass eyewear
3-D printing goes from sci-fi fantasy to reality
India's Infosys surges on founder Murthy's return
Apple battles ebook conspiracy in US court
Solar plane to get inflatable hangar after Midwest storms
Menu
Physical by smartphone becoming real possibility
Review: Google music plan solid, serendipitous
Smarty pants: Wearable electronics will recharge your life
Finnish start-up launches smartphone to rival giants
Samsung unveils new Galaxy S4 'Mini'
Google Drive sports new view and scan enhancements
Facebook joins Web freedom group
New method for mass-producing high-quality DNA molecules
WABIAN robot from Japan steps closer to human walk
Printing innovations provide tenfold improvement in organic electronics
Time is ripe for smartwatches, analysts say
Google coming out with two new Android phones
Taiwan makers showcase computers at Computex
"Is that a smartwatch you're not wearing?" Google's may actually appear
Waiting for Apple's iWatch
Internet's fast lane getting crowded
Cheap leases offered to spur electric car sales (Update)
Caterpillar will install no-doze system for mining trucks
Microsoft aims to simplify with Windows 8.1
Tesla promises to add charging stations
App helps prevent healthcare miscommunication
Cherished 'Start' button returning to Windows software (Update)
Android antiviral products easily evaded, study says
Hagel to broach topic of cyberthreats with Chinese
Visit Statistics
http://google.com/

http://bing.com/

https://gepatit-info.top/

https://serdechnic.com/

https://buy-meds24.com/

https://dverirespekt.ru/

https://www.sribno.net/

https://undergroundcityphoto.com/

https://detskiezabolevaniya.com/

http://grafaman.ru/

http://innoslicon.com/html/product/index.htm

https://yginekologa.com/

https://yes-com.com/

https://www.baikaleminer.com/

https://bitmaein.com/shop

https://www.artdeko.info/

https://aerodizain.com/

http://xn--d1abj0abs9d.in.ua/

http://lider82.ru/

http://sta-grand.ru/

http://snabs.kz/

https://sky-mine.ru/

https://rybalka-opt.ru/

http://snegozaderzhatel.ru/

https://xn--e1aaajzchnkg.ru.com/

http://hit-kino.ru/

http://www.regionshop.biz/

https://xn--80aaafbn2bc2ahdfrfkln6l.xn--p1ai/

https://pp-budpostach.com.ua/

https://vykup-avto-krasnodar.ru/

https://gcup.ru/

https://mega-polis.biz.ua/

http://vanrise.com.ua/

http://infra-e.ru/

https://veterinariya.com/

https://ponosanet.com/

https://cariestop.com/

https://proartrit.com/

https://elonm.ru/

https://nakozhe.com/

https://spinanebolit.com/

http://zameskino.ru/

http://kinoprinc.ru/

http://pospektr.ru/

http://buypillsonline24h.com/

http://komputers-best.ru/

https://komp-pomosch.ru/