AmpliVox 270+ - 4.10.5. PERFORMING HLS; 4.10.6. PERFORMING DECAY

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D-0126050 rev 1 - 270+ Operating Manual
detected increments accordingly. To delete the displayed score, select F3 (CLEAR). To return to the initial
SISI display, select F4.
The score is expressed as a percentage of ratio of the increments heard to the delivered increments (all
increments heard = 100% and no increments heard = 0%).
RESULT SISI TEST
CONCLUSION RECRUITMENT
70 – 100 %
Positive
35 – 65 %
Indifferent
0 – 30 %
Negative
Please note: Selecting the SPECIAL button again will stop the SISI Test and return to the Tone
Audiometry Screen.
4.10.4. PERFORMING MHA
When selecting MHA, you will be taken to the Speech Module to start the hearing aid simulation.
Select F3 to change the filter settings and to present different hearing losses to the subject. Use softkey F2 to
change the input from LINE to eMic. Use softkey F1 to start the counter function, which can be controlled with
the frequency buttons. Select F1 again to stop the counter.
SCREEN
DEFINITION
mFLAT
No filter used
MHA6
1kHz High Pass filter 6 dB/octave
MHA12
1kHz High Pass filter 12 dB/octave
MHA18
1kHz High Pass filter 18 dB/octave
MHA24
1kHz High Pass filter 24 dB/octave
MHAHFE
1kHz High Pass filter 12 dB/octave and
2kHz High pass filter 12 dB/octave
Please note: Selecting the SPECIAL button will stop the MHA Test and return to the Tone Audiometry
Screen.