Sound
Structure Description for speech recognition
< Sound
Structure Description >
one of structure
formula, exp*sin try to fit a part of sound wave to
structure formula which is simple but reasonable ,not directly solve
very complex differential equation of sound generation
mechanism.
principle of vowel (a
hypothesis)
find local maximum, local minimal, and station in sound
generator's physical motion space, which might be the
center
of territory of phonemes.
Simultaneous Existence (a
hypothesis) Physical motion space of sound generator yields
opposite states or relative concepts. They are center of pattern
territory and compose ambiguous border each other.
No. 8, 7 February
2009
previous
pages
Complete sound structure description is that describe
history
from the origin of the sound, all transformation process
to the finish of the sound, including sound effects towards our ears.
But, this history description method is not so useful, because in
actual fact it's hard to get whole history. Other useful
alternative method development is necessary. An idea of sound
structure description method is that decompose a
sound into combinations of characteristic features which
have relation to each other. Past transformation process
reflects relation. Characteristic features consist of two or more
different kinds of type.
For example, when mouth works as like a resonance tube, each
relative waves are generated simultaneously. Analysis how
to relate each waves. Using some generator model which simulates,
by mathematical optimize method fitting to the
generator model , and statistics analysis about model's variables
in order to make use of pattern recognition method on probability. Due
to movement limitation of mouth, some pole points are brought
about and they may be center points in statistics.
Maybe, methods to detect these characteristics based on
non-linear, should be discovered by human, not by machine. Once, these
methods are well understood, then they will be able to be
transformed systematic method, that is like logical
synthesis method.