apollon.signal.filter module

apollon.signal.filter.bandpass_filter(x: numpy.ndarray, fs: int, low: int, high: int, order: int = 4) → numpy.ndarray

Apply a Butterworth bandpass filter to input signal x.

Parameters

• x (np.ndarray) –

• fs (int) –

• low (int) –

• high (int) –

• order (int) –

Returns

(np.ndarray) Filtered input signal.

apollon.signal.filter.coef_bw_bandpass(low: int, high: int, fs: int, order: int = 4) → tuple

Return coefficients for a Butterworth bandpass filter.

Parameters

• low (int) –

• high (int) –

• fs (int) –

• order (int) –

Returns

(tuple) (b, a) Filter coefficients.