Question | Answer |
what are the three parts of the outer ear ? | pinna, Auditory canal , and Tympanic membrane(ear drum) |
What are the three parts of the middle ear ? | malleus , incus, and stapes(stirrup) |
What are the three parts of the inner ear ? | cochlea,semi-circular canals(involved with balance), and auditory nerve |
What function does the outer ear perform? | sound gathering |
What function does the middle ear perform? | mechanical amplitude |
What function does the inner ear perform ? | signal detection and pre-processing |
What does an ear do? | transducer: converts pressure change into nerve impulses |
What does a microphone do ? | transducer that changes pressure variations into voltage variation. |
Frequency constant: low frequency | lower pitch and higher Sound Intensity Level |
Frequency Constant: high frequency | higher pitch and higher Sound Intensity Level |
What is tempo? | number of beats per minute |
What is meter? | basic grouping of notes in a measure : 4/4 2/4 6/8 |
What is rhythm? | pattern of strong and weak beats |
How many semi-tones are in western music octaves ? | 12 semi-tones (chromatic scale) |
How many notes are in a pentatonic scale? | 5 notes |
Perfect 4th and perfect 5th intervals are examples of ... | Pythagorean temperament |
What is the Fourier theorem ? | any periodic wave form can be constructed from sine waves who's frequency form a harmonic series. |
What is Ohm's Law | timbre(tone color) insensitive to relative phase of sine waves making up complex wave form |
What is vibrato ? | frequency modulation (FM) |
What is tremelo ? | Amplitude modulation (AM) |
What is the missing fundamental effect ? | if a series of higher harmonies is established then the brain fills in the missing fundamental . |