Term
|
Definition
2:1 of pitch or frequency.
3 octaves above 75Hz
1. [75 × 2 = 150]
2. [150 × 2 = 300]
3. [300 × 2 = 600] |
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Term
| List the three transductions of the human ear. |
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Definition
| Sound > Vibration > Electro Chemical Nerve Impulses |
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Term
| Earwax acts as ____ from _____. |
|
Definition
| Protection from loud sounds, bugs, dirt, bacteria. |
|
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Term
| List the stages of the ear that sound goes through. |
|
Definition
1. Ear
2. Aural Canal
3. Eardrum - Transducer (Sound > Vibration)
4. Hammer, Anvil, Stirrup (Connects eardrum to cochlea) - Amplifies vibrations
5. Cochlea (Snail thing, center of balance)
6. Cilia (Hairs, Inside of cochlea)
7. Auditory Nerves (Bottom of hairs) - Makes electro chemical nerve impulses. |
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Term
| What is the Eustachian Tube? |
|
Definition
| A small tube that connects the ear to the back of the throat (yawn to pop years). |
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|
Term
| Explain tinnitus in acoustics and psychoacoustics. |
|
Definition
Acoustics - Cilia in cochlea being stimulated so much they break off.
Psychoacoustics - Ringing sound after prolonged exposure to loud sounds. |
|
|
Term
| Ringing out of no where means _____. |
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Definition
|
|
Term
Listening Level vs. Fan Level
Listening comes on when you turn it down. |
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Definition
|
|
Term
What is hearing?
What is listening? |
|
Definition
Hearing - Noticing that a sound is there.
Listening - Focusing, paying attention to sound. |
|
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Term
| What is the Fletcher-Munson Equal Loudness Principal? |
|
Definition
| Humans hear mid-range louder than low/high frequencies. |
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Term
|
Definition
| Pulsing (like tuning a guitar). |
|
|
Term
| Explain Spacial Localization/Binaural Hearing |
|
Definition
| 1. Sound is louder in one ear than the other. 2. Sound reaches one ear sooner than the other. 3. Pinnae - Ridges in ear allow one to hear sound above/below. 4. Acoustic Shadow - Sound is crisper/duller in different ears. |
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|
Term
2kHz and below _____ ____ a head.
2kHz and above _____ ____ a head. |
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Definition
2kHz and below bend around a head.
2kHz and above reflect off a head. |
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Term
|
Definition
| Sound that goes from source to listener’s ear without obstruction or reflection. |
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|
Term
| What are early reflections? |
|
Definition
| Sound waves that reflect off primary boundaries of room (wall, ceiling, floor). |
|
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Term
|
Definition
| Random, blended, multiple echoes |
|
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Term
|
Definition
| Performed again (not copied and pasted). |
|
|
Term
| What is acoustic isolation? |
|
Definition
| Sound stays in room and doesn’t leak and vise versa. |
|
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Term
|
Definition
| Sound is soaked up and not allowed to reflect |
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Term
|
Definition
|
|
Term
| What is transmission loss? |
|
Definition
| The reduction in the sound pressure level (SPL) of a sound source as it passes through an acoustic barrier. |
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Term
|
Definition
| Studio walls are doubled or tripled. Build out 6-12". |
|
|
Term
| Describe a floating floor. |
|
Definition
> Concrete
> Plywood
> Shock Absorbing Material (Hockey Pucks)
> Original Floor |
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|
Term
| What are aspects of a studio construction? |
|
Definition
1. Build walls out 6-12”
2. Floating Floor
3. Room within a room
4. Ceiling suspended from original ceiling by shock absorbing material |
|
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Term
|
Definition
| A platform that sits on shock absorbers. |
|
|
Term
| Window - Air Space/Vacuum - Window |
|
Definition
|
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Term
|
Definition
| Air space between a room. |
|
|
Term
| What are acoustic partitions? |
|
Definition
|
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Term
|
Definition
| The equal distribution of sound energy throughout a room. |
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|
Term
What catches high frequencies well?
What catches low frequencies well? |
|
Definition
High frequencies - Drapes, carpet.
Low frequencies - Bass traps |
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|
Term
| What is an acoustic echo chamber? |
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Definition
| Highly reflective room with a speaker at one end and a microphone at another. |
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