Shared Flashcard Set

Details

Greenberg Notes 2
Audio Tech 1
31
Music
Undergraduate 1
01/18/2012

Additional Music Flashcards

 


 

Cards

Term
Explain octaves.
Definition
2:1 of pitch or frequency.
3 octaves above 75Hz
1. [75 × 2 = 150]
2. [150 × 2 = 300]
3. [300 × 2 = 600]
Term
List the three transductions of the human ear.
Definition
Sound > Vibration > Electro Chemical Nerve Impulses
Term
Earwax acts as ____ from _____.
Definition
Protection from loud sounds, bugs, dirt, bacteria.
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.
Term
What is the Eustachian Tube?
Definition
A small tube that connects the ear to the back of the throat (yawn to pop years).
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 _____.
Definition
Permanent damage.
Term
Listening Level vs. Fan Level
Listening comes on when you turn it down.
Definition
Just a little note.
Term
What is hearing?
What is listening?
Definition
Hearing - Noticing that a sound is there.
Listening - Focusing, paying attention to sound.
Term
What is the Fletcher-Munson Equal Loudness Principal?
Definition
Humans hear mid-range louder than low/high frequencies.
Term
Explain beats.
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.
Term
2kHz and below _____ ____ a head.
2kHz and above _____ ____ a head.
Definition
2kHz and below bend around a head.
2kHz and above reflect off a head.
Term
What is direct sound?
Definition
Sound that goes from source to listener’s ear without obstruction or reflection.
Term
What are early reflections?
Definition
Sound waves that reflect off primary boundaries of room (wall, ceiling, floor).
Term
What is reverberation?
Definition
Random, blended, multiple echoes
Term
What is doubling?
Definition
Performed again (not copied and pasted).
Term
What is acoustic isolation?
Definition
Sound stays in room and doesn’t leak and vise versa.
Term
What is absorption?
Definition
Sound is soaked up and not allowed to reflect
Term
What is reflection?
Definition
Bouncing off.
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.
Term
Studio walls are _____.
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
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
Term
What is a riser?
Definition
A platform that sits on shock absorbers.
Term
Window - Air Space/Vacuum - Window
Definition
Jah mon.
Term
Sound Lock
Definition
Air space between a room.
Term
What are acoustic partitions?
Definition
On-spot sound isolation.
Term
Explain diffusion.
Definition
The equal distribution of sound energy throughout a room.
Term
What catches high frequencies well?
What catches low frequencies well?
Definition
High frequencies - Drapes, carpet.
Low frequencies - Bass traps
Term
What is an acoustic echo chamber?
Definition
Highly reflective room with a speaker at one end and a microphone at another.
Supporting users have an ad free experience!