8 tone sound generator

8/13/2019 8 tone sound generator

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How Tone Generators WorkBy Andy Klaus, eHow Contributor

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Many modern keyboards utilize tone generators to create musical notes.

If you were to ask two different people about tone generators, the likelihood is that you would receive at least two differ ent answers -- and any or allof them could be correct. You can find them in multiple disciplines from music to electronic troubleshooting or even pest control. Each applicationutilizes tone generators differently and sometimes requires different technologies to function. Despite this variance, the basics of all tone generatorswork on the same principles.

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What Is the Purpose of a Signal Generator?

1. What is a Tone Generator?

o A tone generator, also called a signal ge nerator in some applications, is an electronic device that artificially creates sounds frequencies -- usually, but

not always by a primarily electrical means. The device creates an electrical signal and converts it into sounds. The sounds a tone generator creates varydepending on the need of the application. Electronic pianos and organs utilize simple tones based upon set frequencies in the musical scale. Electronicdevices such as signal testers utilize sounds from simple atonal frequencies to complex assortments of frequencies such as white noise.

Electronic Signal Creation

o The source of the electronic signal for a tone generator varies with the type of application. A classic Hammond organ creates electric signals by sendingelectric current through vacuum tubes, which cause the current to oscillate. This current is modified by synchronized mechanical elements that keepthe signals proportional with one another. In portable testers, the source for the electronic signal is a DC current modified by integrated circuits. Evenyour personal computer can create tone signals using a digital representation of the sound.

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Signal to Sound

o All tone generators convert electrical signals into an audible compression wave in virtually the same way that your home stereo system accomplishesthe same task. The electronic signals pass through a coil that produces a magnetic field when it receives a current. The coil is located in proximity to apermanent magnet and connected to a flexible membrane (usually made of paper or plastic). When the electrical signal passes through the coil, themagnetic field changes rapidly, forcing it to be either attracted to or repelled from the fixed magnet, which causes it and the membrane attached to it tovibrate quickly. These vibrations cause compression waves in the air that are known as sound.

Tone Generator Applications

o You can find tone generators in many applications. Aside from the obvious use in common musical instruments such as organs and pianos, tonegenerators provide sounds for instruments such as the theremin and create the basis for digital bass and guitar sounds. Cable television companiesoften use tone generators and electronic induction probes to track down faults in wire shielding. Sound technicians often use tone generators tosoundproof rooms used for recording music. Some pest control devices utilize them to create frequencies that repel pests such as mosquitoes androdents.

o SWITCH

2. nelectrical engineering,a switchis anelectrical componentthat can break anelectrical circuit,interrupting thecurrentor diverting it from one conductor to

another.[1][2]

3. The most familiar form of switch is a manually operatedelectromechanicaldevice with one or more sets of electrical contacts, which are connected to external

circuits. Each set of contacts can be in one of two states: either "closed" meaning the contacts are touching and electricity can flow between them, or "open",

meaning the contacts are separated and the switch is nonconducting. The mechanism actuating the transition between these two states (open or closed) can be

either a "toggle" (flip switch for continuous "on" or "off") or "momentary" (push-for "on" or push-for "off") type.

o

Read more: http://www.ehow.com/info_12048674_tone-generators-work.html#ixzz2nuf44o4J Standard AAsize lithium 1.5V battery (14.5 Dia.x 50 H mm) , peak voltage: 1.72V

2900 mAhUltra-high capacity --- doublerunning time than Alkaline AA cells

0.6oz (17 g)/cellsuper light weight 25%less than Alkaline AA

Extended shelf life (10 years plus)

Superior low and high temperature operations.
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8 tone sound generator

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