. 2015 Jun 24;9:353. doi: 10.3389/fnhum.2015.00353

Table 3.

Definition for effective thresholds λ_d; tested variation ranges, optimal values according to our investigations, and previously suggested values in the literature for common thresholds λ_c.

Detector	Threshold definition for λ_d	Tested range for λ_c	Optimal value for λ_c	Suggested in literature for λ_c
RSP	λ_{c_RSP}	[0.1, 0.5]	0.3	0.22
RMS	percentile(λ_c, f_{d_RMS})	[0.7, 0.995]	0.92	0.95
Sigma	λ_{c_SIGMA}	[1.0, 8.0]	4.0	4.5
Teager	λ_{c_TEAGER}^* $\bar{f_{d_T E A G E R}}$	[0.5, 8.0]	3.0	0.6

All effective decision thresholds are applied directly to the corresponding detection functions f_d. The percentile(p, s) function computes the percentile p of the distribution of a signal s. $\bar{f_{d_T E A G E R}}$ stands for the average value of f_{d_TEAGER}.