LUTEar 2.0.9 Manual - PreEmphasis_BandPass: Outer-/Middle-Ear Filtering

PreEmphasis_BandPass: Outer-/Middle-Ear Filtering

Generic Module Routines
The RunModel_PreEmphasis_BandPass(...) Process Routine
The SetLowerCutOffFreq_PreEmphasis_BandPass(...) Routine
The SetOrder_PreEmphasis_BandPass(...) Routine
The SetPreAttenuation_PreEmphasis_BandPass(...) Routine
The SetPars_PreEmphasis_BandPass(...) Routine
The SetUpperCutOffFreq_PreEmphasis_BandPass(...) Routine
Example: Tests/SSPrograms/FilterShape.c
- Parameter file:FilterShape.par:
- Output

File name	MoPreEmphasis.[ch]

Description	This is the outer-/middle-ear filter model. It uses a first order band pass filter, capable of being applied order times, to model the effects of this section of the auditory periphery.

Example parameter file format	2 Filter order. 0.0 Pre-attenuation for filter (dB). 450.0 Lower, 3 dB down cut-off frequency (Hz). 8500.0 Upper, 3 dB down cut-off frequency (Hz).

Test program directory	Tests/SSPrograms

Generic Module Routines

This module has the standard Generic Module Routines (see Basic Module Routines used in Generic Programming, page 52).

The RunModel_PreEmphasis_BandPass(...) Process Routine

Syntax	BOOLN RunModel_PreEmphasis_BandPass(EarObjectPtr data);

Returns	TRUE if the process is successful, otherwise it returns FALSE.

The SetLowerCutOffFreq_PreEmphasis_BandPass(...) Routine

Syntax	BOOLN SetLowerCutOffFreq_PreEmphasis_BandPass(double theLowerCutOffFreq);

Returns	TRUE if the function is successful, otherwise it returns FALSE.

The SetOrder_PreEmphasis_BandPass(...) Routine

Syntax	BOOLN SetOrder_PreEmphasis_BandPass(int theOrder);

Returns	TRUE if the function is successful, otherwise it returns FALSE.

The SetPreAttenuation_PreEmphasis_BandPass(...) Routine

Syntax	BOOLN SetPreAttenuation_PreEmphasis_BandPass(double thePreAttenuation);

Returns	TRUE if the function is successful, otherwise it returns FALSE.

The SetPars_PreEmphasis_BandPass(...) Routine

Syntax	BOOLN SetPars_PreEmphasis_BandPass(int theOrder, double theLowerCutOffFreq, double theUpperCutOffFreq, double preAttenuation);

Returns	TRUE if the function is successful, otherwise it returns FALSE.

The SetUpperCutOffFreq_PreEmphasis_BandPass(...) Routine

Syntax	BOOLN SetUpperCutOffFreq_PreEmphasis_BandPass(double theUpperCutOffFreq);

Returns	TRUE if the function is successful, otherwise it returns FALSE.

Example: Tests/SSPrograms/FilterShape.c

Parameter file:FilterShape.par:

#
# Main Parameter file
#

output.dat		Name of output file.

# Module specifications.

#Par. file				Name			Description
#---------				-----			-------------
ParFiles/St/PTone5.par		PureTone		Stimulus generation paradigm.
SimSpecs/PE/BPassInt.sim	Utility_SimulationSpec	Simulation
specification.

# Miscellaneous parameters

100.0		Lowest frequency for pure tone probe stimulus (Hz).
20000.0		Highest frequency for pure tone probe stimulus (Hz).
40			No. of frequencies within range (logarithmic).
2.5e-3		Ramp up rise time for signal (s).




Output

Figure [131] Filter shape for the outer-/middle-ear pre-emphasis band pass model.