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Move library tree where it belongs
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35
lib-src/libnyquist/nyquist/tran/resoncv.alg
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35
lib-src/libnyquist/nyquist/tran/resoncv.alg
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(RESONCV-ALG
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(NAME "resoncv")
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(ARGUMENTS ("sound_type" "s1") ("double" "hz") ("sound_type" "bw")
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("int" "normalization"))
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(INLINE-INTERPOLATION T)
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(INTERNAL-SCALING s1)
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(ALWAYS-SCALE bw)
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(START (MAX s1 bw))
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(TERMINATE (MIN s1 bw))
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(LOGICAL-STOP (MIN s1))
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(SAMPLE-RATE (MAX s1))
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(STEP-FUNCTION bw)
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(STATE ("double" "scale1" "s1->scale")
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("double" "c3co" "0.0")
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("double" "coshz" "cos(hz * PI2 / s1->sr)")
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("double" "c2" "0.0")
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("double" "c1" "0.0")
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("int" "normalization" "normalization")
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("double" "y1" "0.0")
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("double" "y2" "0.0;
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bw->scale = (sample_type) (bw->scale * (-PI2 / s1->sr))"))
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(DEPENDS ("c3co" "bw" "exp(bw)")
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("c3p1" "bw" "c3co + 1.0" TEMP "double")
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("c3t4" "bw" "c3co * 4.0" TEMP "double")
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("omc3" "bw" "1.0 - c3co" TEMP "double")
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("c2" "bw" "c3t4 * coshz / c3p1")
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("c1" "bw" "(normalization == 0 ? 1.0 :
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(normalization == 1 ? omc3 * sqrt(1.0 - c2 * c2 / c3t4) :
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sqrt(c3p1 * c3p1 - c2 * c2) * omc3 / c3p1)) * scale1"))
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(CONSTANT "c1" "c2" "c3co" "coshz" "normalization" "scale1")
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(FORCE-INTO-REGISTER normalization coshz scale1)
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(INNER-LOOP "{ double y0 = c1 * s1 + c2 * y1 - c3co * y2;
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output = (sample_type) y0;
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y2 = y1; y1 = y0; }")
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)
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