lasp.lasp_weighcal.WeighCal Class Reference

Frequency weighting and calibration FIR filter. More...

Public Member Functions
	__init__ (self, fw=FreqWeighting.default, nchannels=1, fs=48000., calfile=None)
	Initialize the frequency weighting and calibration FIR filters.
	filter_ (self, data)
	Filter data using the calibration and frequency weighting filter.
	frpCalObj (self, freq_design)
	Computes the objective frequency response of the calibration filter.
	frpWeightingObj (self, freq_design)
	Computes the objective frequency response of the frequency weighting filter.
	frpObj (self, freq_design)
	Combines the frequency weighting and the calibration filter into one frequency response objective function.
	freqResponse (self, chan=0, freq=None)
	Returns the frequency response of the designed FIR filter.

Public Attributes
	nchannels
	fs
	fw
	calfile

Protected Attributes
	_firs
	_fbs
	_freq_design

Detailed Description

Frequency weighting and calibration FIR filter.

Definition at line 16 of file lasp_weighcal.py.

Constructor & Destructor Documentation

__init__()

lasp.lasp_weighcal.WeighCal.__init__	(		self,
			fw = FreqWeighting.default,
			nchannels = 1,
			fs = 48000.,
			calfile = None
	)

Initialize the frequency weighting and calibration FIR filters.

Args: fw: Frequency weighting to apply nchannels: Number of channels for the input data fs: Sampling frequency [Hz] calfile: Calibration file to load.

Definition at line 21 of file lasp_weighcal.py.

Member Function Documentation

filter_()

lasp.lasp_weighcal.WeighCal.filter_	(		self,
			data
	)

Filter data using the calibration and frequency weighting filter.

Args: data: (Weighted) raw time data that needs to be filtered, should have the same number of columns as the number of channels. First axis is assumed to be the time axis

Retuns: Filtered data for each channel

Definition at line 62 of file lasp_weighcal.py.

freqResponse()

lasp.lasp_weighcal.WeighCal.freqResponse	(		self,
			chan = 0,
			freq = None
	)

Returns the frequency response of the designed FIR filter.

Definition at line 139 of file lasp_weighcal.py.

frpCalObj()

lasp.lasp_weighcal.WeighCal.frpCalObj	(		self,
			freq_design
	)

Computes the objective frequency response of the calibration filter.

Definition at line 88 of file lasp_weighcal.py.

frpObj()

lasp.lasp_weighcal.WeighCal.frpObj	(		self,
			freq_design
	)

Combines the frequency weighting and the calibration filter into one frequency response objective function.

Definition at line 127 of file lasp_weighcal.py.

frpWeightingObj()

lasp.lasp_weighcal.WeighCal.frpWeightingObj	(		self,
			freq_design
	)

Computes the objective frequency response of the frequency weighting filter.

Definition at line 112 of file lasp_weighcal.py.

Member Data Documentation

_fbs

lasp.lasp_weighcal.WeighCal._fbs

protected

Definition at line 51 of file lasp_weighcal.py.

_firs

lasp.lasp_weighcal.WeighCal._firs

protected

Definition at line 50 of file lasp_weighcal.py.

_freq_design

lasp.lasp_weighcal.WeighCal._freq_design

protected

Definition at line 60 of file lasp_weighcal.py.

calfile

lasp.lasp_weighcal.WeighCal.calfile

Definition at line 39 of file lasp_weighcal.py.

fs

lasp.lasp_weighcal.WeighCal.fs

Definition at line 36 of file lasp_weighcal.py.

fw

lasp.lasp_weighcal.WeighCal.fw

Definition at line 37 of file lasp_weighcal.py.

nchannels

lasp.lasp_weighcal.WeighCal.nchannels

Definition at line 35 of file lasp_weighcal.py.

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The documentation for this class was generated from the following file:

• src/lasp/lasp_weighcal.py