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An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase ... One is by the frequency of the electronic signal being amplified; audio amplifiers amplify signal...

How does an amplifier work? - Explain that Stuff


Aug 26, 2016 ... Amplifiers are the tiny components in hearing aids that make voices sound louder . They're also the gadgets in radios that boost faraway signals ...

Principle of amplification - AstroSurf


Principle of amplification - Electronic tubes and transistors. ... very weak signal extracted from a CD reader or a tuner you can easily generate a deafening sound .

Activity 1- Vibrations & Pitch Describe the difference in the sounds ...


Describe the difference in the sounds made by the thin and thick rubber bands. Which one seems ... Activity 2- Amplification of Sound Through Air. What did you  ...

Basic questions about transistor amplification - Electrical ...


Jan 5, 2012 ... Can anyone explain how a transistor can amplify voltage or current? According to ... Say for example, I want to amplify a sound wave. I whisper ...

Amplify | Define Amplify at Dictionary.com


Amplify definition, to make larger, greater, or stronger; enlarge; extend. ... American: Danai Gurira believes in the power of using her voice to amplify African storytellers. ... to define his position, and threat made it wise to amplify and explain.

Sound & Waves: Good Vibrations Part II / Labs, Activities, and Other ...


We will demonstrate how sound waves are produced and reveal how they ... List the amplifying materials you test and describe their effectiveness as amplifiers.

Amplify - definition of amplify by The Free Dictionary


Define amplify. amplify synonyms, amplify pronunciation, amplify translation, ... use) to increase the loudness of (sound), esp. by mechanical or electronic means . .... 2. go into detail, develop, explain, expand, supplement, elaborate, augment,  ...

What is amplifier? - Definition from WhatIs.com


An amplifier is an electronic device that increases the voltage, current, ... are used in wireless communications and broadcasting, and in audio equipment of all ...

How does a violin produce sound? | Reference.com


A violin produces sound through the vibration of its strings, which occurs ... of the violin to serve as a resonating chamber and amplifying the sound produced.

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How do hearing aids work? - Explain that Stuff


Apr 24, 2016 ... A hearing aid is simply an electronic sound amplifier. You've seen people on stage speak into a microphone and have their voices hugely ...

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.

The Difference Between Gain, Volume, Level, and Loudness | Off ...


This could be the increase in the raw signal from your guitar or microphone ... More specifically we use SPL (sound pressure level) to describe sound waves.