Audio

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Hertz

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the SI unit of frequency, equal to one cycle per second.

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Frequency

Back 2

the rate at which something occurs or is repeated over a particular period of time or in a given sample.

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Echolocation

Back 3

he location of objects by reflected sound, in particular that used by animals such as dolphins and bats.

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Infrasound

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sound waves with frequencies below the lower limit of human audibility.

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Ultrasound

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sound or other vibrations having an ultrasonic frequency, particularly as used in medical imaging.

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Sound

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vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear.

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Elasticity

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the ability of an object or material to resume its normal shape after being stretched or compressed; stretchiness.

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Acoustic

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relating to sound or the sense of hearing.

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Transducer

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a device that converts variations in a physical quantity, such as pressure or brightness, into an electrical signal, or vice versa.

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Tuning fork

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a two-pronged steel device used by musicians, which vibrates when struck to give a note of specific pitch.

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Compression

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the reduction in volume (causing an increase in pressure) of the fuel mixture in an internal combustion engine before ignition.

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Rarefaction

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is the reduction of an item's density, the opposite of compression.

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Cycle

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a series of events that are regularly repeated in the same order.

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Period

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As a sound wave moves through a medium, each particle of the medium vibrates at the same frequency.

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Amplitude

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the maximum extent of a vibration or oscillation, measured from the position of equilibrium.

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Wavelength

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the distance between successive crests of a wave, especially points in a sound wave

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Tone

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a musical or vocal sound with reference to its pitch, quality, and strength.

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Decibel

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a unit used to measure the intensity of a sound or the power level of an electrical signal by comparing it with a given level on a logarithmic scale.

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Absorption

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the process or action by which one thing absorbs or is absorbed by another.

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Reflection

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the throwing back by a body or surface of light, heat, or sound without absorbing it.

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Refraction

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the fact or phenomenon of light, radio waves, etc., being deflected in passing obliquely through the interface between one medium

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Bitrate

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the number of bits per second that can be transmitted along a digital network.

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Codecs

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a device or program that compresses data to enable faster transmission and decompresses received data.

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Wrapper

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a piece of paper, plastic, or foil covering and protecting something sold.

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WAV

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is a Microsoft and IBM audio file format standard for storing an audio bitstream on PCs.

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AIFF

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is an audio file format standard used for storing sound data for personal computers and other electronic audio devices.

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CDA

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The CDA is designed for those individuals who are working with young children in all settings.

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MP3

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a means of compressing a sound sequence into a very small file, to enable digital storage and transmission.

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AAC

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is an audio coding standard for lossy digital audio compression. Designed to be the successor of the MP3 format

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MIDI

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a widely used standard for interconnecting electronic musical instruments and computers.

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Audacity

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the willingness to take bold risks.

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Garage band

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is single-channel. Typically there is only one microphone, one loudspeaker, or (in the case of headphones and multiple loudspeakers) channels are fed from a common signal path.

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Stereophonic sound

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This is usually achieved by using two or more independent audio channels through a configuration of two or more loudspeakers

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Surround sound

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a system of stereophonic sound involving three or more speakers surrounding the listener so as to create a more realistic effect.

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Streaming

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a method of transmitting or receiving data (especially video and audio material) over a computer network as a steady, continuous flow, allowing playback to proceed while subsequent data is being received.