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1 = (2 * (Kˆ2 - 1) ) / (1 + root2*sqrt(V0)*K + V0*Kˆ2);<br />
b2 = (1 - root2*K + Kˆ2) / (1 + root2*sqrt(V0)*K + V0*Kˆ2);<br />
a1 = (2 * (V0*Kˆ2 - 1) ) / (1 + root2*sqrt(V0)*K + V0*Kˆ2);<br />
a2 = (1 - root2*sqrt(V0)*K + V0*Kˆ2) / ...<br />
(1 + root2*sqrt(V0)*K + V0*Kˆ2);<br />
%%%%%%%%%%%%%%%%%%%%<br />
% TREBLE BOOST<br />
%%%%%%%%%%%%%%%%%%%%<br />
elseif (( G > 0 ) & (strcmp(type,’Treble_Shelf’)))<br />
CM0268<br />
MATLAB<br />
DSP<br />
GRAPHICS<br />
345<br />
b0 = (V0 + root2*sqrt(V0)*K + Kˆ2) / (1 + root2*K + Kˆ2);<br />
b1 = (2 * (Kˆ2 - V0) ) / (1 + root2*K + Kˆ2);<br />
b2 = (V0 - root2*sqrt(V0)*K + Kˆ2) / (1 + root2*K + Kˆ2);<br />
a1 = (2 * (Kˆ2 - 1) ) / (1 + root2*K + Kˆ2);<br />
a2 = (1 - root2*K + Kˆ2) / (1 + root2*K + Kˆ2);<br />
%%%%%%%%%%%%%%%%%%%%<br />
% TREBLE CUT<br />
%%%%%%%%%%%%%%%%%%%%<br />
elseif (( G < 0 ) & (strcmp(type,’Treble_Shelf’)))<br />
b0 = (1 + root2*K + Kˆ2) / (V0 + root2*sqrt(V0)*K + Kˆ2);<br />
b1 = (2 * (Kˆ2 - 1) ) / (V0 + root2*sqrt(V0)*K + Kˆ2);<br />
b2 = (1 - root2*K + Kˆ2) / (V0 + root2*sqrt(V0)*K + Kˆ2);<br />
a1 = (2 * ((Kˆ2)/V0 - 1) ) / (1 + root2/sqrt(V0)*K ...<br />
1<br />
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