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| created by vibratons that are felt by the inner part of the ear |
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| push the surrounding air in different directions, creating waves of high pressure and low pressure |
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| areas of increased pressure |
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| areas of decreased pressure |
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| measures the rate of sound wave vibrations per unit of time |
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| includes one compression and one rarefaction |
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| amount of time it takes to complete one cycle of a sound wave |
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| refers to the number of complete vibrrations per second |
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| measurement of a frequency |
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| one cycle, or one oscillation per second |
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| highness or lowness of a tone and is determined by the number of vibrations per second of sound |
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| the first person to determine pitches based on ratios |
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| the interval from one tone to another tone that is eight full notes above or below the original tone |
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| in what type of music are instuments tuned to and "A" pitch |
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| 12 evenly spaced pitches contained within and octave |
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| tuning to equally spaced frequencies |
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| attak, sustain, and decay |
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| three stages of a the sound envelope |
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| provides the initial resistance to the force of friction that begins the vibration |
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| the sound of the initial resistance creates the... |
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| when the particular sound of the tone is created by the instrument |
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| when the vibration loses force and the amplitude decreases until the vibration stops |
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| the loudness or softness of a sound |
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| measures the rate of sound wave vibrations per unit of time |
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| measure of the power of a sound wave as it moves through space |
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| 2 properties that determine the loudness or softness of a sound |
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| units to measure intensity |
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| become gradually softer (2 def) |
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| the unique combination of the fundamental frequency and harmonics that differentiates one sound from another |
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| additional sound waves that occur simultaneouly with the fundamental pitch |
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