Spectral analysis in multicurve, Battery drain test – Audioscan Verifit 2 User Manual

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Verifit

®

User's Guide Version 4.2 © June 2015

Spectral analysis in Multicurve

Selecting a stimulus level of 0 dB (off) in [Multicurve] presents a spectral analysis of the coupler microphone
signal (Scale = dB SPL) or the difference between the coupler and reference microphone spectra (Scale = dB
Gain).

If the stimulus type is [Pink noise], the analysis is performed in 1/12th octave bands and displayed in real time.
Pressing [Continue] captures the displayed spectrum.

If the stimulus type is [Swept], a swept filter analysis is performed in 1/12th octave bands and displayed at 1/3rd
octave frequencies. Pressing [Continue] causes the swept filter analysis to be performed in 1/12th octave bands
and displayed at 1/12th octave frequencies.

Battery drain test

The battery drain test automatically measures the battery current when there is no input signal (quiescent), when
the input signal is a 1 kHz tone at 65 dB SPL and the average of the currents when the input signal is 90 dB SPL
at the HFA or SPA frequencies (Avg @ 90 dB). Battery life is estimated assuming 80% quiescent and 20% Avg
@ 90 dB use. With the hearing instrument set as normally used:

1. Right-click mouse to raise home menu and select [Battery drain] under Test box.

2. Install and connect the proper battery pill. See Battery pill use and care.

3. Click [Battery type] and select the installed battery pill.

4. Click [Hours per day] and select from the drop-down list.

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