Chapter 3 Flashcards

1
Q

human hearing range

A

20-20000 hz

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2
Q

grand piano frequency range

A

27-4200 hz

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3
Q

lowest organ note

A

16 hz

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4
Q

highest piccolo note

A

4500 hz

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5
Q

virtual pitch

A

a missing fundamental can be heard solely on the basis of hearing its harmonics

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6
Q

critical bandwidth

A

range of frequencies that evoke a similar response in the auditory system
- auditory system responds similarly to frequencies in close proximity to each other

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7
Q

consonance

A

the degree to which tones that sound simultaneously sound pleasing

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8
Q

dissonance

A

the degree to which tones that sound simultaneously sound displeasing

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9
Q

when is perceived dissonance maximal

A

when harmonics of tones fit within the same critical band without being identical

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10
Q

hammer hitting a steel plate

A

114 db

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11
Q

marimba perceptual system

A

there were long gestures and short gestures and the perceptual system thought the long gestures were associated with longer notes
- shows the perceptual system overrides the auditory system

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12
Q

pitch fusion

A

when sounds are less than 50ms apart, the seem to fuse together into a continuous sound

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13
Q

timbre

A

intrinsic and distinctive quality of sound produced by the musical source

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14
Q

pinna

A

scoops up sound waves and directs the incoming vibrations into the auditory canal

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15
Q

auditory canal

A

terminates in the ear drum

- acts as a resonator

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16
Q

binaural cues

A

interaural timing and interaural intensity

17
Q

inpedence matching

A

the preservation of energy across context characterized by differing levels of resistance

18
Q

cochlea

A
  • arrangement of 3 parallel tubes, vestibular canal, median canal, and tympanic canal
19
Q

if unrolled how much would the cochlea measure

A

3.5 cm

20
Q

transduction

A

energy of one form must be converted into electro-chemical energy

21
Q

place theory

A

where on the basilar membrane the maximum displacement occurs
- pitches about 5khz

22
Q

residue pitch

A

there is no place corresponding to the fundamental that is heard as pitch

23
Q

time theory

A

the time between successive phases of the displacement of the basilar membrane by the energy of the traveling wave
- below 5kHz

24
Q

problems with time theory

A

if the frequency is really high it fires continuously making it unable to detect the space in between firings