Difference between revisions of "Gesture Signal Processing"

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== Filtering ==
 
== Filtering ==
  
While studying sensors, we discovered that often a particular sensor will measure the position '''x''', velocity '''v''', or acceleration '''a''' of an object.  However,  
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While studying sensors, we discovered that often a particular sensor will measure the position '''x''', velocity '''v''', or acceleration '''a''' of an object.  However, we might like to use a different variable to control the way we synthesize sound.  Ideally, integration and differentiation can be applied to convert between variables.
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Simple integrator:
 
Simple integrator:

Revision as of 17:28, 10 October 2008

Interpolation

Filtering

While studying sensors, we discovered that often a particular sensor will measure the position x, velocity v, or acceleration a of an object. However, we might like to use a different variable to control the way we synthesize sound. Ideally, integration and differentiation can be applied to convert between variables.


Simple integrator:

y[n] = 0.1*x[n] + 0.9*y[n-1]

example of lp filter

Simple differentiator:

y[n] = x[n] - x[n-1]

example of hp filter

book on simple filter design


Thresholding