Loudness and Space Perception

Question 1

The logarithmic decibel scale

Answer 1

perception related to the log of pressure ratios

Question 2

Equal loudness contours

Answer 2

graphs relating frequency level combinations that

give constant loudness

Question 3

Psychophysical scaling

Answer 3

method for establishing a quantitative relation between perception and sound properties

Question 4

Intensity coding

Answer 4

the cues in the auditory neural representation

used to calculate loudness

Question 5

Specific loudness

Answer 5

The loudness in each critical band

Question 6

Information accumulation

Answer 6

Process operating over time

Question 7

Information integration

Answer 7

Process operating across critical bands

Question 8

The Cone of Confusion

Answer 8

There are positions in space that give the same ITD and ILD, which should therefore be confused in localization

Question 9

Localization: Distance Cues

-Level

Answer 9

sound pressure is inversely proportional to the distance (sound intensity is inversely proportional to the square of the distance because I ~ p2)

Question 10

Direct/reverb ratio

Answer 10

the ratio of direct sound from an instrument to reverberant sound from the room or environment decreases with distance

Question 11

Filtering

Answer 11

higher frequencies get more filtered the further away the sound is due to absorption in the air