BISCHOF2023 - binaural masking level differences moving sound sources

Usage

[DynBU_OUT,BMLD_pred,BE_pred] = bischof2023(INtarget,INinterf,params)

Input parameters

INtarget

2-channel waveform of target signal in columns

INinterf

2-channel waveform of interferer signal in columns

params

parameter structure with the following fields

'.fs' sampling frequency [Hz] (default: 44.1e3)

'.f_range' 1x2 vector defining the frequency range in [Hz] for auditory filters (default: [10 15.5e3])

'.Bark_ord' filter order for Bark filters (default: 4)

'.Bark_len' filter length for Bark filters (default: 512)

'.t_st' short time evaluation window [sec] (default: 0.012)

'.t_SLUGGint' time constant for binaural sluggishness integration [sec] (default: 0.225)

'.t_INTint' time constant for intensity integration of better-ear SNR [sec] (default: 0.090)

Output parameters

`DynBU_OUT`	overall binaural unmasking to detect the given target signal in the given noise signal [in dB]
`BMLD_pred`	predicted binaural masking level difference [in dB]
`BE_pred`	predicted better-ear SNR [in dB]

Description

BISCHOF2023 DynBU_fast: DYNamic Binaural Unmasking model with "fast" cue extraction. Calculates the better ear and binaural benefit for detecting a dynamic sound source in noise.

Target and interferer must be binaural signals (two channels only)

References:

J. F. Culling, M. L. Hawley, and R. Y. Litovsky. The role of head-induced interaural time and level differences in the speech reception threshold for multiple interfering sound sources. J. Acoust. Soc. Am., 116(2):1057--1065, august 2004.

N. Bischof, P. Aublin, and B. Seeber. Fast processing models effects of reflections on binaural unmasking. Acta Acustica, 2023.