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Up: Obtaining candidate values
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As described by equation 116, the LP polynomial may be
factored and therefore the method of partial fractions may be used to
express the transfer function as:
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The roots occur in complex conjugate pairs (as the polynomial in
is real)
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The angle defines the formant frequency
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As with the LP spectrum, can choose all peaks or those closest to the
unit circle.
Speech Vision Robotics group/Tony Robinson