News tagged with microphone
A new generation of acoustic measurements
NPL scientists have made the first measurements of airborne acoustic free-field pressures using a laser technique based on photon correlation spectroscopy.
May 29, 2012 |
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In future, phones can identify the Troubadour on the tree top
In spring, the sound of birds serenading fills the air. The Department of Signal Processing and Acoustics is developing a system that can recognize a bird species based on a song segment. The system can be ...
May 22, 2012 |
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Japan scientist makes 'Avatar' robot
A Japanese-developed robot that mimics the movements of its human controller is bringing the Hollywood blockbuster "Avatar" one step closer to reality.
Feb 10, 2012 |
5 / 5 (9) |
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Google gives glimpse of Internet glasses
Google on Wednesday gave the world a glimpse of its vision for letting people look at life through Internet-tinted glasses.
Technology / Hi Tech & Innovation
Apr 04, 2012 |
5 / 5 (10) |
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Enterprising engineers build world's smallest microphone
(PhysOrg.com) -- Imagine what you could do with a microphone so small, it’s almost invisible to the naked eye. Clearly there would be practical uses, such as in creating hearing aids that no one would ...
Jan 05, 2012 |
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Review: Livescribe smartpen is iPad's opposite
Here's a consumer electronics riddle: What's the opposite of the iPad? Answer: the Livescribe Echo "smartpen." It's as if Livescribe and Apple both looked at the old pen-and-pad combination, but completely ...
Electronics / Consumer & Gadgets
Sep 14, 2011 |
3.3 / 5 (11) |
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TVs you can talk to, without sounding crazy
Talking to the TV is usually a sign of extreme agitation, mental instability or loneliness. TV manufacturers are set to make it a more rational behavior this year, with a range of sets that respond to speech.
Electronics / Consumer & Gadgets
Jan 09, 2012 |
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Robots learn to create language
(PhysOrg.com) -- Communication is a vital part of any task that has to be done by more than one individual. That is why humans in every corner of the world have created their own complex languages that help ...
May 17, 2011 |
4.4 / 5 (10) |
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The moaning mouth bot learns to sing (w/ video)
(PhysOrg.com) -- Some of you may recall the moaning mouth bot. This bot, which is basically a disembodied mouth that first came to the public attention for making a series of moaning noises that were truly ...
Jul 13, 2011 |
4.5 / 5 (4) |
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Google turns Android smartphones into interpreters
Google on Wednesday began turning Android-powered smartphones into interpreters with experimental software that lets the handsets translate conversations in real time.
Jan 12, 2011 |
4.8 / 5 (12) |
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Nintendo debuts touchscreen Wii successor
Nintendo has introduced the world to the Wii's touchy new big brother: the Wii U.
Electronics / Consumer & Gadgets
Jun 07, 2011 |
5 / 5 (2) |
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'Orca ears' inspire researchers to develop ultrasensitive undersea microphone
(PhysOrg.com) -- Stanford researchers have developed a microphone that can be used at any depth in the ocean, even under crushing pressure, and is sensitive to a wide range of sounds, from a whisper in a library ...
Jun 23, 2011 |
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iPhones are musical instruments in new course and ensemble (w/ Video)
(PhysOrg.com) -- iPhones are being used as musical instruments in a new course at the University of Michigan.
Technology / Hi Tech & Innovation
Dec 01, 2009 |
3.1 / 5 (12) |
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Quantum microphone captures extremely weak sound
(PhysOrg.com) -- Scientists from Chalmers have demonstrated a new kind of detector for sound at the level of quietness of quantum mechanics. The result offers prospects of a new class of quantum hybrid circuits ...
Feb 06, 2012 |
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iPhone 4 review: Nice phone, too bad about antenna problem, lack of LTE
Apple's iPhone 4 is a beautiful device, one of the nicest in the growing field of amazing smartphones on sale this summer. The software gives its touch-screen controls a buttery smoothness, plus a few handy ...
Electronics / Consumer & Gadgets
Jul 15, 2010 |
2.5 / 5 (6) |
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Microphone
A microphone (colloquially called a mic or mike; both pronounced /ˈmaɪk/) is an acoustic-to-electric transducer or sensor that converts sound into an electrical signal. In 1877, Emile Berliner invented the first microphone used as a telephone voice transmitter. Microphones are used in many applications such as telephones, tape recorders, karaoke systems, hearing aids, motion picture production, live and recorded audio engineering, FRS radios, megaphones, in radio and television broadcasting and in computers for recording voice, speech recognition, VoIP, and for non-acoustic purposes such as ultrasonic checking or knock sensors.
Most microphones today use electromagnetic induction (dynamic microphone), capacitance change (condenser microphone), piezoelectric generation, or light modulation to produce an electrical voltage signal from mechanical vibration.
For more information about Microphone, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
