Editing Of Abr Threshold Recordings; Interpretation And Use Of Abr Threshold Results - Interacoustics Eclipse Instructions For Use Manual

Eclipse Instructions for Use - US

3.7.3 Editing of ABR threshold recordings

A typical ABR threshold recording is using NB CE-chirp
Above is an example of a threshold recording using 2kHz Tone Burst. Note the large PAM response from the
right side caused by the loud stimulus of 80dBnHL. The ABR threshold at 20dB nHL at 2kHz found here
would be well within the range of normal hearing.

3.7.4 Interpretation and use of ABR threshold results

The ABR threshold measurement is used in fitting hearing aids instruments to infants. The
correction factors is available in some fitting software such as DSL v5.0a and Oticon's fitting software. These
offer a solution for the audiologist when the hearing thresholds supplied to them are not corrected.
® LS
or Tone Burst for threshold evaluation
500Hz
Stimuli dB nHL 50
Correction (dB)* -20
dB estimated
30
hearing level
eHL
Page 41
.
ABR to behavioral
1kHz 2kHz 4kHz
60 65 65
-15 -10 -5
45 55 60