Towards a simplified and generalized monaural and binaural auditory model for psychoacoustics and speech intelligibility

Topical Issue - Auditory models: from binaural processing to multimodal cognition

Open Access

Table 1

Root-mean-square errors (RMSE) and coefficients of determination (R²; squared cross-correlation coefficient) between data and model predictions for the monaural and binaural psychoacoustic experiments. The RMSE values of the time-intensity trading experiment have no units, as they are based on d′.

Monaural experiments
Experiments	BMFD		BI_L,R		mr-GPSM [26]
Experiments	RMSE	R ²	RMSE	R ²	RMSE	R ²
1. Hearing threshold	3.3 dB	0.99	3.3 dB	0.99	1.7 dB	0.99
Intensity JNDs	0.2 dB	0.66	0.2 dB	0.64	0.3 dB	0.57
2. Spectral masking	9.5 dB	0.82	9.5 dB	0.8	7.9 dB	0.9
3. Tone in noise	1.3 dB	0.99	1.3 dB	0.99	2.1 dB	0.99
4. AM detection	4.0 dB	0.71	4 dB	0.78	4.5 dB	0.68
5. AM discrimination	2.4 dB	0.94	2.4 dB	0.92	1.6 dB	0.94
6 AM masking	4.6 dB	0.77	4.7 dB	0.79	6.2 dB	0.73
Binaural experiments
Experiments	BMFD		BI_L,C,R		BI_L,R
	RMSE	R ²	RMSE	R ²	RMSE	R ²
1. ITD discrimination	0.042 ms	0.04	0.042 ms	0.1	0.041 ms	0.12
2. IID discrimination	0.4 dB	0.14	0.4 dB	0.08	0.4 dB	0.15
3. Frequency and interaural phase relationships in wideband conditions	9.1 dB	0.86	8.5 dB	0.85	6.7 dB	0.88
4. N₀S_π dependence on signal duration	2.9 dB	0.92	3.0 dB	0.92	3.2 dB	0.9
5. Temporal phase transition	2.6 dB	0.80	2.7 dB	0.8	2.7 dB	0.81
6. Time-intensity-trading	0.5	0.38	0.6	0.58	0.6	0.61
7. Spatial unmasking	2.3 dB	0.91	2.0 dB	0.94	2.0 dB	0.98

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