bramslow2004_roexfilt
Correct the power spectrum by the roex-filter shape considering signal level and hearing loss

Usage:

[Roex_SPL, E_Vector, HTLL]=bramslow2004_roexfilt(PowSpect, E_SPL, In_FrmSize, In_SampF, NoChan, Widen, AGFs_E, AGLoss, RET4153, E_Beg, E_End, E_Bin)

Input parameters:

`PowSpect`	Row vector with the power spectrum. Size: In_FrmSize/2.
`E_SPL`	SPL (in dB) in each ERB, used to adjust the roex filter slopes.
`In_FrmSize`	Input framesize (in samples).
`In_SampF`	Input sampling rate (in Hz).
`NoChan`	Number of output channels (equally distributed on the ERB scale).
`Widen`	Flag for filter widening dependent on level. If true, the filter will be widened.
`AGFs_E`	Audiogram frequencies on ERB scale (in Cams).
`AGLoss`	Audiogram (in dB HL) specified at frequencies [125 250 500 750 1000 1500 2000 3000 4000 6000 8000 10000 12500] Hz.
`RET4153`	ISO 389 thresholds (in dB SPL) as measured on the ear-simulator (4153) coupler. Specified at the same frequencies as for AGLoss.
`E_Beg`	Lowest ERB rate considered (in Cams, typically 3 Cams).
`E_End`	Highest ERB rate considered (in Cams, typically 32 Cams).
`E_Bin`	ERB rates (in Cams) of the individual bins in the frame.

Output parameters:

`Roex_SPL`	SPL (in dB) corrected by the roex-filterbank output.
`E_Vector`	Power spectrum (in dB) corrected by the roex-filterbank output.
`HTLL`	Hearing threshold levels (in dB) interpolated along the ERB scale to obtain SPL of the 4152 coupler.

Description:

See also other parameters as in arg_bramslow2004.

References:

L. Bramsløw Nielsen. An Auditory Model with Hearing Loss. Technical report, Eriksholm Research Centre, Snekkersten, 1993. [ .pdf ]

L. Bramsløw. An objective estimate of the perceived quality of reproduced sound in normal and impaired hearing. Acta Acustica united with Acustica, 90(6):1007--1018, 2004. [ http ]

L. Bramsløw. An auditory loudness model with hearing loss. In Baltic-Nordic Acoustics Meeting, pages 318--323, 2024. [ .html ]

THE AUDITORY MODELING TOOLBOX