Sound Flashcards
Sound properties
Pitch Loudness Timbre Articulation Rhythm
Physical property of pitch
Frequency
Frequency
Number of cycles of compressions and rarefactions that occur per second
Cps measurement is referred to as hertz
Hertz
Measurement of frequency.
Physical property of loudness
Amplitude
Decibels (dB)
How we measure amplitude
Physical property of timbre
Shape of waveform
Simplest waveform is a sine wave
Type of wave forms
Triangle wave
Sawtooth wave
Square wave
Sine wave
Noise
Standard wave form with no regular pattern
White noise
Even power at all frequencies
Pink noise
Linear in logarithmic space; equal power in bands that are proportionally wide
Physical property of articulation
Amplitude envelopes
Types of amplitude envelopes
ADSR - bowed or blown envelopes
AR- struck or plucked envelopes
ADSR
Attack-Decay- sustain-release envelopes
Ex. Flute and violins
AR
Attack-release envelope
Struck or plucked
Ex. Piano, guitar
