From
Sensation to Perception
Our hearing is influenced by psychological principles (Gestalt) and forms of illusion.
The perception of space, time, and tone follows certain rules laid down by our sensory system and processed by our brain,
while entrainment is a special case of our body and mind being able to syncronize with an ecternal rhythm that can then induce a specific
physical or psychological state.
Listening modes
Listening
begins with being silent -
Joachim-Ernst Berendt
Hearing is passive and listening is active.
While hearing involves receiving auditory information through the ears,
listening relies on the capacity to filter, selectively focus, remember, and
respond to sound.
binaural
effect: stereophonic reception, help us perceive
distance, spatial relationships, and our place in the world.
Our ability to listen is multifocused,
which means we can glean information through several different psychological and perceptual perceptives.
Michel Chion, the French film theorist, 3
types of listening modes: reduced, casual and semantic. (referential)
Reduced: refers to the real-time awareness of all the sound quality
parameters.
It is about the sound itself not the source
or its meaning.
Casual: consists of listening to a sound to be able to gather information
about it cause.
Eg: We usually treat a sound (other than
speech) as casual, like answering the phone when it rings.
Semantic: it pertains to the spoken language and other code systems that symobolize
ideas, actions, and things.
Referential: consists of being aware of or affected by the context of the
sound, linking not only to the source but principally to the emotional and
dramatic meaning.
Less
is more
Sometimes we can get the most impact with
the least number of elements.
Eg: Ben Burtt, sound designer for Star War, applies a single breathing
cycle with varying speed. The sinister simplicity helped generate a cultural
icon.
Gestalt principles and illusion
Gestalt psychology: The whole is different
from the sum of its parts. It emphasizes the function of the whole and the
relationship between the components which produce the perception.
Figure
and ground
Your interests and habits may influence
what you listen to.
Eg: the only voice in your native language
among all foreign-speaking people.
Sound quality influences what might be
noticed in a soundscape in the reverse sense of masking. On the other hand,
physical dimensions of the sound have much less influence on the figure-ground
phenomenon than does the novelty or contrast of elements.
Eg: Walter Murch, Oscar-winning sound
designer of The Goldfather.
Completeness,
good continuation, and closure
Draw us to a satisfying conclusion.
Good
continuation
Relates to the principle that changes in
the frequency, intensity, location, or spectrum of a single sound source tend
to be smooth and continuous rather than abrupt. If the change is smooth, then
this indicates a single source; if abrupt, then a new source has been
activated.
The law of closure states that the mind will tend to unite two disconnected
lines lying along the same trajectory.
Proximity and similarity
The law of proximity explains how the brain tends to group nearby objects.
When this rule is applied to audio, where
proximity means nearness in time, adjacent sound elements tend to be grouped as
a single sound object.
Common
fate and belongingness
Common
fate refers to the phenomenon of two or more
components in a complex sound undergoing the same kinds of changes at the same
time, which then become grouped and perceived as part of the same source.
Illusion
While understanding how to produce some
really fascinating acoustic illusions is essential to
mastering from content.
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