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Different aspects of sound become relevant at different time frames.
The audio signal ranges from 20-20,000Hz; the duration for
one note ranges from a fraction of a second to over 1 second,
whereas a bar typically last from one to a few seconds. Different
graphical forms are used to tackle the different facets of
music and language which are shown in the following table:
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|
Time frame
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<0.05 sec.
|
0.01-1 sec.
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>0.1 sec.
|
|
Aspect
|
Basic wave form
Sound texture
Mixing of sound
|
Note profile
Blending of sound
Beating effect
|
Sequence of notes
Melody
|
|
Phonature type
|
Sound texture diagram
Musical kaleidoscope
|
Mathematical cochlea
|
Circular score
|
|
Features detected
|
Sound texture
Voice signature
Phonemes
Tonal scale effects
Note mixing effects
|
Harmonics
Words
Attack & decay profile
Tonal accuracy and stability
Transitional sound effects
Instrument mixing effects
|
Beats
Note timing accuracy
Melody pattern
Intonation
|
Technology
