audio_filters.show_response

Classes

FilterType

Base class for protocol classes.

Functions

get_bounds(→ tuple[int | float, int | float])	Get bounds for printing fft results
show_frequency_response(→ None)	Show frequency response of a filter
show_phase_response(→ None)	Show phase response of a filter

Module Contents

class audio_filters.show_response.FilterType

Bases: Protocol

Base class for protocol classes.

Protocol classes are defined as:

class Proto(Protocol):
    def meth(self) -> int:
        ...

Such classes are primarily used with static type checkers that recognize structural subtyping (static duck-typing).

For example:

class C:
    def meth(self) -> int:
        return 0

def func(x: Proto) -> int:
    return x.meth()

func(C())  # Passes static type check

See PEP 544 for details. Protocol classes decorated with @typing.runtime_checkable act as simple-minded runtime protocols that check only the presence of given attributes, ignoring their type signatures. Protocol classes can be generic, they are defined as:

class GenProto[T](Protocol):
    def meth(self) -> T:
        ...

abstract process(sample: float) → float

Calculate y[n]

>>> issubclass(FilterType, Protocol)
True

audio_filters.show_response.get_bounds(fft_results: numpy.ndarray, samplerate: int) → tuple[int | float, int | float]

Get bounds for printing fft results

>>> import numpy
>>> array = numpy.linspace(-20.0, 20.0, 1000)
>>> get_bounds(array, 1000)
(-20, 20)

audio_filters.show_response.show_frequency_response(filter_type: FilterType, samplerate: int) → None

Show frequency response of a filter

>>> from audio_filters.iir_filter import IIRFilter
>>> filt = IIRFilter(4)
>>> show_frequency_response(filt, 48000)

audio_filters.show_response.show_phase_response(filter_type: FilterType, samplerate: int) → None

Show phase response of a filter

>>> from audio_filters.iir_filter import IIRFilter
>>> filt = IIRFilter(4)
>>> show_phase_response(filt, 48000)