mirror of
https://github.com/cookiengineer/audacity
synced 2025-05-04 09:39:42 +02:00
52 lines
1.7 KiB
Plaintext
52 lines
1.7 KiB
Plaintext
(ARESONVV-ALG
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(NAME "aresonvv")
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(ARGUMENTS ("sound_type" "s1") ("sound_type" "hz1") ("sound_type" "bw")
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("int" "normalization"))
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(ALWAYS-SCALE hz1 bw)
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(START (MAX s1 hz1 bw))
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(TERMINATE (MIN s1 hz1 bw))
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(LOGICAL-STOP (MIN s1))
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(SAMPLE-RATE (MAX s1))
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(STEP-FUNCTION hz1 bw)
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(LINEAR s1)
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(STATE ("double" "scale1" "s1->scale")
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("double" "c3co" "0.0")
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("double" "c3p1" "0.0")
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("double" "c3t4" "0.0")
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("double" "omc3" "0.0")
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("double" "coshz" "0.0")
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("double" "c2" "0.0")
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("double" "c1" "0.0")
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("boolean" "recompute" "false")
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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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hz1->scale = (sample_type) (hz1->scale * (PI2 / s1->sr));
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bw->scale = (sample_type) (bw->scale * (-PI2 / s1->sr));"))
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(DEPENDS ("coshz" "hz1" "cos(hz1)")
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("recompute" "hz1" "true")
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("c3co" "bw" "exp(bw)")
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("c3p1" "bw" "c3co + 1.0")
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("c3t4" "bw" "c3co * 4.0")
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("omc3" "bw" "1.0 - c3co")
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("recompute" "bw" "true"))
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(JOINT-DEPENDENCY (("hz1" "bw")
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"if (recompute) {"
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" recompute = false;"
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" c2 = c3t4 * coshz / c3p1;"
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" c1 = (normalization == 0 ? 0.0 :"
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" (normalization == 1 ? "
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" 1.0 - omc3 * sqrt(1.0 - c2 * c2 / c3t4) :"
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" 1.0 - sqrt(c3p1 * c3p1 - c2 * c2) * "
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" omc3 / c3p1));"
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"}"))
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(CONSTANT "c1" "c2" "c3co" "coshz" "c3p1" "c3t4" "omc3"
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"normalization" "scale1")
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(FORCE-INTO-REGISTER recompute) ;c3t4 c3p1 normalization omc3 scale1
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(INNER-LOOP-LOCALS " register double y0, current;\n")
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(INNER-LOOP "current = s1;
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y0 = c1 * current + c2 * y1 - c3co * y2;
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output = (sample_type) y0;
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y2 = y1; y1 = y0 - current")
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)
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