omnidirectionnal speaker
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omni

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Comment créer un Haut-parleur / How to make a speaker

Attention à lire #===== -Faites attention à la taille de la bobine du Haut-Parleur, car si trop gros, la résistance de celle-ci peut endommager ...
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Japanese Flagship: Sony MDR-EX1000

Japanese Flagship: Sony MDR-EX1000 | omnidirectionnal speaker | Scoop.it

Here it is, the MDR-EX1000 flagship IEM from Sony, courtesy of my friend at Bankok’s Munkong Gadget. Sony started with a ...

Des écouteurs audiophiles haut de gamme avec transducteurs électrodynamiques de 16 mm


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Philips Fidelio SoundSphere par 01net.com

Philips Fidelio SoundSphere par 01net.com | omnidirectionnal speaker | Scoop.it

Philips vient de présenter son dernier dock haut de gamme pour iPod et iPhone. Après ceux de Pioneer et JBL, c'est l'un des rares appareils compatibles avec Apple AirPlay. Cette technologie permet de diffuser en Wi-Fi la musique lue sur un iPad, un iPhone ou un iPod, mais aussi sur un Mac ou un PC équipés d'iTunes.


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[Eng] Test de l'enceinte omnidirectionnelle German Physiks HRS-120 par ToneAudio

[Eng] Test de l'enceinte omnidirectionnelle German Physiks HRS-120 par ToneAudio | omnidirectionnal speaker | Scoop.it

La conclusion du test (traduction) : L'enceinte German Physiks HRS-120, bien que non conventionnelle dans son apparence et son approche technique, offre une expérience musicale très réaliste. Cette réalisation sans compromis de budget est d'une qualité de fabrication exceptionnelle et offre des performances en rapport avec son prix. Cette enceinte a besoin d'espace au sol, mais, grâce à sa facilité d'installation et de configuration, elle est plus polyvalente que d'autres réalisations de même gamme de prix.
Si vous en avez assez des enceintes qui n'autorisent qu'un point d'écoute (sweet spot) resserré et que vous avez envie que toutes les personnes installées dans la pièce prennent le même plaisir d'écoute que vous, alors placez la HRS-120 en tête de liste des enceintes à aller essayer.
Prix : de 27.405 $ à 42.600 $ (selon configuration des haut-parleurs).


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Disney Research creates first 3D-printed interactive speakers of any shape that have tactile feedback

Disney Research creates first 3D-printed interactive speakers of any shape that have tactile feedback | omnidirectionnal speaker | Scoop.it

Scientists at Disney Research, Pittsburgh have developed methods to use a 3D printer to produce electrostatic loudspeakers that can take the shape of anything, from a rubber ducky to an abstract spiral.

The simple speakers require little assembly, but even those few manual steps might be eliminated in the future, said co-developer Yoshio Ishiguro, a Disney Research, Pittsburgh post-doctoral associate. “In five to 10 years, a 3D printer capable of using conductive materials could create the entire piece,” he predicted.

The speaker technology could be used to add sound to toys or other objects. Because the same speakers that produce audible sound also can produce inaudible ultrasound, the objects can be identified and tracked so that they can be integrated into games and other interactive systems. The objects can be touched or held in a user’s hand without a noticeable decrease in sound quality, so simple tactile feedback may also be possible.

 

The speakers are based on electrostatic speaker technology, which is simpler than conventional electromagnetic speakers and includes no moving parts, making it suitable for producing with a 3D printer.

An electrostatic speaker consists of a thin, conductive diaphragm and an electrode plate, separated by a layer of air. An audio signal is amplified to high voltage and applied to the electrode; as the electrode charges, an electrostatic force develops between it and the diaphragm, causing the diaphragm to deform and produce sound as the audio signal changes.

 

This type of speaker has relatively little bass response, but does a good job of producing high-frequency sounds, such as chirping birds, computer-generated blips and even the human voice. Sound reproduction of up to 60 decibels is possible — an appropriate level for small objects.

 

“What’s more, it can generate sound across the entire face of the speaker,” Ishiguro noted. That makes it possible to not only produce directional, cone-shaped speakers but also omnidirectional speakers in which the entire 3D surface emits sound.

 

Also, the speakers can be built with any number or configuration of electrodes; placing multiple electrodes in a curved speaker, for instance, makes it possible to vary the direction of the sound emitted.


Via Dr. Stefan Gruenwald
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Ex-caserne Mellinet : la concertation en marche - maville.com

Ex-caserne Mellinet : la concertation en marche - maville.com | omnidirectionnal speaker | Scoop.it
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Seiki Digital ST2103M Bluetooth Speaker (Black) review

Seiki Digital ST2103M Bluetooth Speaker (Black) review | omnidirectionnal speaker | Scoop.it

Seiki Digital ST2103M Bluetooth Speaker (Black) Bluetooth enabled Portable USB/ AUX Inputs Built-in Subwoofer Works as a Speaker Phone Harness the power of Bluetooth wireless audio with the Seiki ST2103M. With its omnidirectional design, the speaker can direct high-definition sound with rich... http://zoval.com/seiki-digital-st2103m-bluetooth-speaker-black-review.html


Via Mary Law
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omni

omni | omnidirectionnal speaker | Scoop.it
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Low cost ARCTIC S113BT NFC/Bluetooth 4.0 Stereo Speaker, AAC/aptX, Build-in Microphone for Hands-Free Calls, Orange

Low cost ARCTIC S113BT NFC/Bluetooth 4.0 Stereo Speaker, AAC/aptX, Build-in Microphone for Hands-Free Calls, Orange | omnidirectionnal speaker | Scoop.it

ARCTIC S113BT NFC/Bluetooth 4.0 Stereo Speaker, AAC/aptX, Build-in Microphone for Hands-Free Calls, Orange Near Field Communication+Bluetooth 4.0/EDR A2DP/AVRCP Profiles Ideal for Smartphones/Tablet/e-Reader/MP3 Supports AAC, aptX Built-in Omnidirectional Microphone for Use as Speaker... http://zoval.com/low-cost-arctic-s113bt-nfcbluetooth-4-0-stereo-speaker-aacaptx-build-in-microphone-for-hands-free-calls-orange.html


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Spot hot Roksan : une marque de Hi-Fi audiophile qui ose vraiment

Spot hot Roksan : une marque de Hi-Fi audiophile qui ose vraiment | omnidirectionnal speaker | Scoop.it
Voici un des spots de communication les plus osés que nous connaissions de la part d'une marque de produits Hi-Fi audiophile. C'est chaud, sexy, hot, plein de clichés... à ne pas manquer...

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Totem Acoustic Element, les nouvelles perles de la Hi-Fi canadienne

Totem Acoustic Element, les nouvelles perles de la Hi-Fi canadienne | omnidirectionnal speaker | Scoop.it

Une gamme d'enceintes audiophiles haut de gamme dont les woofers Torrent exclusifs n'utilisent aucun filtrage


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McIntosh MHA-100 : à l’assaut des amplis casque haut de gamme

McIntosh MHA-100 : à l’assaut des amplis casque haut de gamme | omnidirectionnal speaker | Scoop.it
La marque américaine McIntosh vient d’annoncer la sortie d’un amplificateur assez polyvalent mais très axé casque audio de haut niveau. Le MHA-100 offrira 4 entrées numériques 32/192 kHz et même une véritable section amplificatrice de 2 x 50 watts pour des enceintes traditionnelles. What Esle ?

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TIC CORPORATION GS50 8", 250-Watt Outdoor Omnidirectional Passive Subwoofer

TIC CORPORATION GS50 8", 250-Watt Outdoor Omnidirectional Passive Subwoofer | omnidirectionnal speaker | Scoop.it
Product Details | Shipping & Delivery | Special Offers TIC CORPORATION GS50 8″, 250-WATT OUTDOOR OMNI-DIRECTIONAL SUBWOOFER, TRUE 360 SUBWOOFER SOUND ; 250W, 8″ SUBWOOFER; LOW PASS CROSSOVER NETWORK @ 100 HZ; HIGH PASS CROSSOVER NETWORK FOR 2X SATELLITES; 1 M 14/2 DOUBLE... http://speakersrev.com/tic-corporation-gs50-8-250-watt-outdoor-omnidirectional-passive-subwoofer/
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Sony RDP-V20iP Speaker Dock for iPod, iPhone 4S, iPhone 4, iPhone 3G/3GS

http://www.mytrendyphone.co.uk/shop/sony-rdp-v20ip-speaker-61573p.html Sony RDP-V20iP Speaker Dock - red. Comaptible with: iPhone 4, iPhone 4S, iPhone 3G, 3G...
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Ex-caserne Mellinet : la concertation en marche - maville.com

Ex-caserne Mellinet : la concertation en marche - maville.com | omnidirectionnal speaker | Scoop.it
Ex-caserne Mellinet : la concertation en marche
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