diff options
Diffstat (limited to 'tran/areson.alg')
| -rw-r--r-- | tran/areson.alg | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/tran/areson.alg b/tran/areson.alg new file mode 100644 index 0000000..a26287e --- /dev/null +++ b/tran/areson.alg @@ -0,0 +1,24 @@ +(ARESON-ALG +(NAME "areson") +(ARGUMENTS ("sound_type" "input") ("double" "hz") ("double" "bw") + ("int" "normalization")) +(START (MIN input)) +(TERMINATE (MIN input)) +(LOGICAL-STOP (MIN input)) +(LINEAR input) +(STATE ("double" "c3" "exp(bw * -PI2 / input->sr)") + ("double" "c3p1" "susp->c3 + 1.0" TEMP) + ("double" "c3t4" "susp->c3 * 4.0" TEMP) + ("double" "omc3" "1.0 - susp->c3" TEMP) + ("double" "c2" "c3t4 * cos(hz * PI2 / input->sr) / c3p1") + ("double" "c1" "(normalization == 0 ? 0.0 : + (normalization == 1 ? 1.0 - omc3 * sqrt(1.0 - susp->c2 * susp->c2 / c3t4) : + 1.0 - sqrt(c3p1 * c3p1 - susp->c2 * susp->c2) * omc3 / c3p1))") + ("double" "y1" "0.0") + ("double" "y2" "0.0")) +(CONSTANT "c1" "c2" "c3") +(INNER-LOOP-LOCALS " register double y0, current;") +(INNER-LOOP "current = input; + output = (sample_type) (y0 = c1 * current + c2 * y1 - c3 * y2); + y2 = y1; y1 = y0 - current") +) |