calculate_loudness_bramslow2004: Calculate Loudness for Cochlear Hearing Loss

In SII: Calculate ANSI/ASA S3.5-1997 (R2024) Speech Intelligibility Index

Calculate Loudness for Cochlear Hearing Loss

Description

Fast excitation pattern estimation based on Chen et al. 2011 (JASA) "A new model for calculating auditory excitation patterns and loudness for cases of cochlear hearing loss." This implements the Moore & Glasberg (2004) excitation model.

Usage

calculate_loudness_bramslow2004(
  inputF,
  inputLdB,
  HLcf = NULL,
  HLohcdB0 = NULL,
  HLihcdB0 = NULL,
  cambin = 0.1,
  flow = 50,
  fhigh = 15000,
  outerearcorrection = "FreeField"
)

Arguments

inputF	Vector of dense input frequency values (Hz, typically 1 Hz spaced)
inputLdB	Vector of input spectrum levels (dB/Hz)
HLcf	Audiogram frequencies
HLohcdB0	OHC loss at audiogram frequencies
HLihcdB0	IHC loss at audiogram frequencies
cambin	Spacing [ERB] between successive auditory filter CFs
flow	Lowest center frequency of an auditory filter
fhigh	Highest center frequency of an auditory filter
outerearcorrection	"FreeField", "PDR10", or "Eardrum"

Value

A list containing Loudness (sones), Excitation, Cams, and CFs.

SII documentation built on Sept. 12, 2026, 5:08 p.m.