Table 1. Parameter estimates and SEM for power law fits to the multiband peaky speech auditory brainstem response wave V data in the three experiments*.

Type	Narrator	High-pass cutoff	a	b	d
Norms†			4.70–5.00 ms	3.46–5.39 ms	0.22–0.50
A. Experiment 1
Diotic four-bands	Male	30 Hz	5.13 ± 0.08 ms	3.95 ± 1.03 ms	0.41 ± 0.02
		150 Hz	4.80 ± 0.08 ms	3.95 ± 1.03 ms	0.37 ± 0.02
B. Experiment 2
Diotic four-bands	Male	30 Hz	5.06 ± 0.14 ms	4.42 ± 1.04 ms	0.45 ± 0.03
	Female	30 Hz	5.58 ± 0.12 ms	3.94 ± 1.08 ms	0.44 ± 0.05
C. Experiment 3
Dichotic five-bands	Male	30 Hz	5.06 ± 0.14 ms‡	4.13 ± 1.04 ms§	0.36 ± 0.02
	Female	30 Hz	5.58 ± 0.12 ms‡	3.75 ± 1.07 ms§	0.41 ± 0.03

*Power model: $\tau \left(f\right)= a+b{f}^{-d}$ where $a= {\tau }_{synaptic}+ {\tau }_{I-V}$ and ${\tau }_{synaptic}$ = 0.8 ms. See 'Statistical analyses' section in 'Materials and methods' for more detail.

^†Norms for tone pips and derived bands were calculated for 65 dBppeSPL using the model's level-dependent parameter when appropriate (Neely et al., 1988; Rasetshwane et al., 2013; Strelcyk et al., 2009).

^‡Estimates from experiment 2 were used.

^§Estimates given for the left ear; there was not a significant difference for the right ear.