SPHR 4/588 - Advanced Audiology
dB HL Tutorial

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Perform each of the five following conversion problems. The ANSI reference values for Audiometric Zero (i.e., dB HL) are shown below.

2. If we measure a threshold of 13 dB SPL at 8000 Hz we could express it as   dB HL on the audiogram.


 

Frequency (Hz.)
125
250
500
1000
2000
3000
4000
6000
8000
TDH 49,59
47.5
26.5
13.5
7.5
11.0
9.5
10.5
13.5
13.0