THE AUDITORY MODELING TOOLBOX

This documentation applies to the most recent AMT version (1.6.0).

View the code

Go to function

bramslow2004_erbenergy
ERB SPL and total power of a power spectrum

Usage:

[ERB_SPL, ERB_Power]=bramslow2004_erbenergy(PowSpect, NoChan, In_FrmSize, In_SampF, Widen, AGLoss, RET4153, AGFs_E,  E_Beg, E_End)

Input parameters:

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

Output parameters:

ERB_SPL SPL (in dB) in each ERB band, restricted to be between 20 and 130 dB.
ERB_Power Total power (in dB) across all ERB bands.

Description:

bramslow2004_erbenergy(..) calculates the energy (in dB SPL) in each EEB band. Further, it returns the total power of the signal (in dB).

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 ]