"Dual Processing" (a proposed
term): the auditory perception of a single
event or short gestural pattern that yields
complementary types of information
simultaneously, information that is
effortlessly apprehended at all levels of
listening attention, from background,
distracted listening to foreground analytical
listening
What it is not:
- separating
sound and structure (the latter occurs over
a longer time frame)
-
auditory stream segregation
- auditory
strategies for identifying pitch,
spectrum/timbre, loudness and rhythm (although
these will also be involved)
Examples:
1) the sound source and the excitation
function (e.g. a struck object and the type
of mallet, as studied by Warren &
Verbrugge, Freed, Gaver et al.)
Trevor Wishart's taxonomy
of intrinsic vs imposed morphology (unique
or continuous energy input)
2) Speech and Paralanguage:
what is said and how it is said
3) Audio reproduction; source recognition
and the 'fidelity'
or quality of reproduction
- culturally
conditioned perception that develops auditory
competence
4) Acoustic
Space: the perception of both a sound
event and the acoustical space in which it
is produced, as well as size-distance
relationships
Conclusion: these aspects of auditory
processing are the result of cognitive
learning aided by primary psychoacoustic
strategies (e.g. those that are frequency,
time and energy based)
They appear to operate at a meso level,
between the micro level of individual
auditory processing, and the macro level of
larger scale structural organization as it
functions in everyday sound perception
They are central and fundamental to all
forms of acoustic communication and sound
design.
Question: How does hearing loss
affect these auditory and cognitive
abilities?
