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A megaphone, speaking-trumpet, bullhorn, or loud hailer is a portable, usually hand-held, cone-shaped acoustic horn used to amplify a person's voice or other ...

Sound Amplification - HowStuffWorks


Sound amplification is the job of a group of tiny bones inside the middle ear. Learn about sound amplification and why sound amplification is necessary.

How does an amplifier work? - Explain that Stuff


May 8, 2015 ... Amplifiers are the tiny components in hearing aids that make voices sound louder . They're also the gadgets in radios that boost faraway signals ...

How do the hammer, anvil and stirrup bones amplify sound into the ...


Jan 31, 2008 ... Douglas E. Vetter, Assistant Professor of Neuroscience at the Tufts University Sackler School of Biomedical Sciences, sounds out an answer to ...

Refraction of Sound - HyperPhysics


But bending of sound waves does occur and is an interesting phenomena in ... But refraction can add some additional sound, effectively amplifying the sound.

How do speakers work?| Explore | physics.org


In order to translate an electrical signal into an audible sound, speakers ... which amplifies these vibrations, pumping sound waves into the surrounding air and ...

How We Hear: External, Middle & Inner Ear ~ Audiology Awareness ...


Cupping the hand behind the pinna provides small additional amplification to sounds coming from the front because it effectively enlarges the sound collection  ...

Sound is a Mechanical Wave - The Physics Classroom


In fact, the more particles that can be made to vibrate, the louder or more amplified the sound. This concept is often demonstrated by the placement of a vibrating ...

Acoustic Amplifiers - Experimental Musical Instruments


Dec 28, 2010 ... The term “acoustic amplifier” is sometimes used to describe sound amplification systems that don't use electricity. I recently had some ...

Audition: Hearing, the Ear, and Sound Localization - Boundless


... membrane, etc.) Define and describe the process of audition ... The outer ear is responsible for the collection and amplification of sound. The air-filled middle ...

Popular Q&A
Q: How to Amplify Speaker Sound.
A: Things You'll Need. Audio device (receiver, CD player, etc.). Amplifier. RCA cables. Speakers. Speaker wire. Instructions. Purchase an amplifier that is rated f... Read More »
Source: www.ehow.com
Q: How to Amplify Sound.
A: Things You'll Need. Paper. Tape. Instructions. Wrap a large piece of paper into a cone. You can use butcher block paper, newspaper or anything else handy. The s... Read More »
Source: www.ehow.com
Q: How is sound amplified in a cone?
A: Sound is not amplified in a cone. In fact, sound is not "amplified" any way that does not add energy, i.e. an electronic amplifier. Even then, though, a cone is... Read More »
Source: wiki.answers.com
Q: How to Make a Metallica Sound on a Crate Amplifier
A: 1 Set "Gain" to 10. This allows the tone to be fully distorted, much like many songs within the Metallica discography. If you decide to tone it back for a song ... Read More »
Source: www.wikihow.com
Q: How are microphones able to amplify sound?
A: There are 3 steps. Sound waves move a microphone diaphragm back and forth and microphone translates movement to electrical signals. Then recorder encodes electr... Read More »
Source: wiki.answers.com