7 Key Characteristics of Sound Waves
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7 Characteristics of Sound
Amplitude
Height of a sound wave
Measured in decibels (dB)
Often referred to as
volume
Frequency
Completion of
one cycle
Measured in
Hertz (Hz)
Related to
pitch (Middle
C 262Hz)
Phase
Designates a point in a
sound wave’s cycle
Measured in degrees
Two waves in phase equal
increased amplitude
Two waves out of phase
equal decreased amplitude
Velocity
The speed at which sound travels
1130 feet per second @68 degrees F
Faster as heat increases
Wavelength
The physical length of one
completed cycle
Wavelength = Velocity
divided by Frequency
1130/30 = 37.66 ft
Harmonics
Often referred to as timbre
Divided into evens and odds
Helps us differentiate one instrument from
another
Envelope
ADSR
Attack
Decay
Sustain
Release
Helps us differentiate one instrument from another
Dive into the fascinating world of sound waves with an exploration of their 7 essential characteristics. Learn about attributes such as amplitude, frequency, phase, velocity, wavelength, harmonics, and envelope (ADSR), each playing a crucial role in shaping how we experience and interpret sound. Understand how these characteristics contribute to the richness and diversity of sounds we encounter in our daily lives.
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Presentation Transcript
Amplitude Height of a sound wave Measured in decibels (dB) Often referred to as volume
Frequency Completion of one cycle Measured in Hertz (Hz) Related to pitch (Middle C 262Hz)
Phase Designates a point in a sound wave s cycle Measured in degrees Two waves in phase equal increased amplitude Two waves out of phase equal decreased amplitude
Velocity The speed at which sound travels 1130 feet per second @68 degrees F Faster as heat increases
Wavelength The physical length of one completed cycle Wavelength = Velocity divided by Frequency 1130/30 = 37.66 ft
Harmonics Often referred to as timbre Divided into evens and odds Helps us differentiate one instrument from another
Envelope ADSR Attack Decay Sustain Release Helps us differentiate one instrument from another
