“highness” or “lowness” of a sound; a specific frequency of vibration
What is pitch
100
the strength of a signal or a sound without regard to its frequency content
What is amplitude
100
below the range of human hearing; <20 Hz
What is subsonic
100
the quality of sound, allows us to distinguish musical instruments
What is timbre
100
the distance between two wavefronts
What is wavelength
200
the length of time it takes for a sound wave to compete its cycle
What is wave period
200
the level of auditory sensation
What is loudness
200
is the result of in-phase combination
What is constructive interference
200
musical term to describe a scale of loudness
What is dynamics
200
the range of human hearing
What is <20Hz and >20kHz
300
the result of out-of-phase combination
What is destructive interference
300
the logarithm of a person ratio
What is decibel
300
a waveform that contains no additional frequencies besides the fundamental
What is sine wave
300
device used to measure sound pressure level
What is sound level meter
300
result from pressure areas between two parallel surfaces (strongest resonance of the room)
What is axial
400
when two periodic signals or sounds are less than 30 Hz or so apart in frequency, and if they are mixed together, the amplitude of the combined signals will fluctuate as they alternately reinforce and cancel each other
What is interference beats
400
1,000 Hz
What is kHz
400
the fractional part of a period through which the waveform has advanced, measured from some arbitrary point in time
What is phase
400
the mathematical techniques to transform a mathematical function from one domain to another
What is Fourier analysis
400
relates to our ability to distinguish between two discreet pitches
What is critical band
500
has a frequency ratio of 6:5
What is minor third
500
a curve plotted as a function of frequency defining the sound pressure level required to give equal loudness
What is equal-loudness contour (Fletcher-Munson curve)
500
has a frequency ratio of 4:3
What is perfect fourth
500
a group of frequencies (partials), each which is an integral multiple of the lowest
What is harmonis series
500
the distance between two musical notes, expressed in terms of pitch