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Merge 9977d00baf12229ba04e90b9b2de494f0002cef5 into 338cbafe0d5b07d57f83060ea0f9ba3a6c1155e7

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Anan 2025-02-09 20:52:22 +03:00 committed by GitHub
commit a6eb3954f5
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1 changed files with 23 additions and 0 deletions
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23
audio_filters/butterworth_filter.py
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@ -10,6 +10,23 @@ Alternatively you can use scipy.signal.butter, which should yield the same resul
"""
# All calls to filter creators must have keyword arguments
def safe_checks(filter_creator):
def safe_filter_creator(**kwargs):
if not isinstance(kwargs["frequency"], int) or kwargs["frequency"] <= 0:
raise ValueError("Frequency must be a positive integer.")
if not isinstance(kwargs["samplerate"], int) or kwargs["samplerate"] <= 0:
raise ValueError("Samplerate must be a positive integer.")
if not (0 < kwargs["frequency"] < kwargs["samplerate"] / 2):
raise ValueError("Frequency must be less than half of the samplerate.")
if kwargs["q_factor"] <= 0:
raise ValueError("Q factor must be positive.")
return filter_creator(**kwargs)
return safe_filter_creator
@safe_checks
def make_lowpass(
frequency: int,
samplerate: int,
@ -40,6 +57,7 @@ def make_lowpass(
return filt
@safe_checks
def make_highpass(
frequency: int,
samplerate: int,
@ -70,6 +88,7 @@ def make_highpass(
return filt
@safe_checks
def make_bandpass(
frequency: int,
samplerate: int,
@ -101,6 +120,7 @@ def make_bandpass(
return filt
@safe_checks
def make_allpass(
frequency: int,
samplerate: int,
@ -128,6 +148,7 @@ def make_allpass(
return filt
@safe_checks
def make_peak(
frequency: int,
samplerate: int,
@ -160,6 +181,7 @@ def make_peak(
return filt
@safe_checks
def make_lowshelf(
frequency: int,
samplerate: int,
@ -197,6 +219,7 @@ def make_lowshelf(
return filt
@safe_checks
def make_highshelf(
frequency: int,
samplerate: int,