Feeds

JVC constructs 'pulsating sphere' near-ideal audio source

Looks a bit Blakes 7 though...

3 Big data security analytics techniques

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
US mobile firms cave on kill switch, agree to install anti-theft code
Slow and kludgy rollout will protect corporate profits
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
Report: Apple seeking to raise iPhone 6 price by a HUNDRED BUCKS
'Well, that 5c experiment didn't go so well – let's try the other direction'
Rounded corners? Pah! Amazon's '3D phone has eye-tracking tech'
Now THAT'S what we call a proper new feature
Feast your PUNY eyes on highest resolution phone display EVER
Too much pixel dust for your strained eyeballs to handle
Hearthstone: Heroes of Warcraft – A jolly little war for lunchtime
Free-to-play WoW turn-based game when you have 20 minutes to kill
Zucker punched: Google gobbles Facebook-wooed Titan Aerospace
Up, up and away in my beautiful balloon flying broadband-bot
prev story

Whitepapers

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.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
SANS - Survey on application security programs
In this whitepaper learn about the state of application security programs and practices of 488 surveyed respondents, and discover how mature and effective these programs are.