Feeds

JVC constructs 'pulsating sphere' near-ideal audio source

Looks a bit Blakes 7 though...

SANS - Survey on application security programs

JVC has developed what it claims is the "ideal sound source" loudspeaker. Well, almost - the company described its "pulsating sphere" system as "very close" to its goal of creating "a natural, near-perfect sound field".

jvc pulsating sphere speakers

It's not a true sphere, either. Each speaker is actually a 10cm-diameter dodecahedron containing 11 speaker drivers. Sound coverage is uniform in every direction in range up to 10kHz, varying by less than±1dB, JVC claimed.

To get loudspeaker geeky for a moment, each driver's diaphragm has a Weibull curve shape, which means it's not centred exactly within the pentagons that make up each face of the dodecahedron. However, the entire surface of the pentagon emits sound. The emitters are driven by dual neodymium magnets.

The upshot, said JVC, is the production of a uniform sound wave with a wide, flat frequency range that propagates in every direction. There's no diffraction from an enclosure and no near-range sound-field problems caused by flat sound surfaces. The speakers also lack the "sonic quirks" heard in typical speakers, the company added.

JVC said it will be demoing the pulsating sphere speakers in Japan next week, but there's no indication when any of this acoustic boffinry will make it to market. ®

SANS - Survey on application security programs

More from The Register

next story
Samsung Galaxy S5 fingerprint scanner hacked in just 4 DAYS
Sammy's newbie cooked slower than iPhone, also costs more to build
Leaked pics show EMBIGGENED iPhone 6 screen
Fat-fingered fanbois rejoice over Chinternet snaps
Oh no, Joe: WinPhone users already griping over 8.1 mega-update
Hang on. Which bit of Developer Preview don't you understand?
Microsoft lobs pre-release Windows Phone 8.1 at devs who dare
App makers can load it before anyone else, but if they do they're stuck with it
True optical zoom coming to HTC smartphone cameras
Time to ditch that heavy DSLR? Maybe in a year, year and a half
Rounded corners? Pah! Amazon's '3D phone has eye-tracking tech'
Now THAT'S what we call a proper new feature
Leaked photos may indicate slimmer next-generation iPad
Will iPad Air evolve into iPad Helium?
Feast your PUNY eyes on highest resolution phone display EVER
Too much pixel dust for your strained eyeballs to handle
Zucker punched: Google gobbles Facebook-wooed Titan Aerospace
Up, up and away in my beautiful balloon flying broadband-bot
prev story

Whitepapers

Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Top three mobile application threats
Learn about three of the top mobile application security threats facing businesses today and recommendations on how to mitigate the risk.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.