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. Author manuscript; available in PMC: 2014 Sep 1.
Published in final edited form as: J Am Acad Audiol. 2013 Sep;24(8):725–739. doi: 10.3766/jaaa.24.8.9

Figure 1.

Figure 1

A. Average EHF thresholds measured from current subjects at frequencies from 8–16 kHz closely matched the RETSPL sound levels identified as normal hearing threshold level in ANSI S3.6 1996 Annex C. Figure 1B. EHF thresholds measured from current subjects tested at frequencies from 8–16 kHz were consistent with those reported by Schechter et al. (1986; mean and SD for subjects ages 16–20 years old, from their Tables I and II), Green et al. (1987; mean and SD for 37 subjects ages 18–26, from their Table II), Stelmachowicz et al. (1989; mean and SD for 160 subjects ages 10–19, from their Table I), and Frank (2001; mean and SD for 100 subjects ages 18–25, from his Table I).