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update 16

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This commit is contained in:
Connor Olding 2015-10-29 04:04:31 -07:00
parent 0dffcc35ed
commit a37bfd0db8
1 changed files with 4 additions and 3 deletions
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7
lib/__init__.py
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@ -52,8 +52,9 @@ def c_render2(xs, cascade, phase=False):
"""c_render optimized and specifically for first/second-order filters""" """c_render optimized and specifically for first/second-order filters"""
import numexpr as ne import numexpr as ne
j = np.complex(0, 1) j = np.complex(0, 1)
eq2 = '(b0 + j*b1*ws - b2*ws**2)/(a0 + j*a1*ws - a2*ws**2)' # obviously this could be extended to higher orders
eq1 = '(b0 + j*b1*ws)/(a0 + j*a1*ws)' eq2 = '(b0 + b1*s + b2*s**2)/(a0 + a1*s + a2*s**2)'
eq1 = '(b0 + b1*s)/(a0 + a1*s)'
if not phase: if not phase:
fmt = 'real(log10(abs({})**2)*10 + gain)' fmt = 'real(log10(abs({})**2)*10 + gain)'
else: else:
@ -72,7 +73,7 @@ def c_render2(xs, cascade, phase=False):
a1, a0 = a a1, a0 = a
else: else:
raise Exception("incompatible cascade; consider using c_render instead") raise Exception("incompatible cascade; consider using c_render instead")
ws = xs/w0 s = xs/w0*j
ys += ne.evaluate(eq) ys += ne.evaluate(eq)
if phase: if phase:
ys = degrees_clamped(ys) ys = degrees_clamped(ys)