otometrics Aurical Hit User Manual (English)

Other manuals for otometrics Aurical Hit

Questions and Answers:

Steven SpenceAug 1, 2025

What to do if test results seem incorrect on otometrics Measuring Instruments?

I
isaiahdavisAug 1, 2025
If your test results seem incorrect, follow these steps: 1. Open AURICAL HIT and remove the hearing instrument and the coupler microphone. 2. Point the reference microphone towards the area of the coupler microphone socket in AURICAL HIT. 3. Close the lid. 4. Run the test. 5. Look at the curve at 90 dB SLP. It must be as flat as possible. 6. If it is not, make a Validation Report, recalibrate, and repeat the sequence above. 7. If test results still seem incorrect, replace the relevant microphone and calibrate the new microphone.

Barry WilliamsAug 15, 2025

How to reduce ambient noise in otometrics Aurical Hit Measuring Instruments?

R
Ryan MooreAug 15, 2025
To exclude ambient noise and comply with the ANSI S3.22 standard, place the system in a moderately quiet room. Additionally: * If noise enters the test chamber, try slightly moving the device, as this can significantly alter the noise level at certain frequencies. * If noise enters the test chamber via the table or stand, try adding a heavy-duty mounting mat or replacing the table or stand with a more suitable support. * If needed, place the PC and any other equipment on a separate table to prevent noise and vibrations from influencing sensitive tests.

Brand	otometrics
Model	Aurical Hit
Category	Measuring Instruments
Language	English

Brand

otometrics

Model

Aurical Hit

1 Introduction

1.1 Intended use

Details the purpose of AURICAL HIT for testing programmable hearing instruments.

1.2 Typographical conventions

Explains the meaning of Warning, Caution, and Note symbols used in the manual.

3 Installation

3.1 Connecting the device

Instructions on connecting AURICAL HIT to a computer via USB and installing OTOsuite.

4 The test chamber

4.1 The coupler assembly

Details the components of the coupler assembly and their functions.

Coupler adapter

Explains the use of adapters for easy positioning of different hearing instruments.

2 cc coupler cavity

Describes the 2 cc coupler cavity used for hearing instrument testing according to ANSI standard.

Coupler microphone

Details the coupler microphone's location and usage in AURICAL HIT or Accessory Box.

4.2 Cable groove

Explains how to use the cable groove to secure the hearing instrument's programming cable.

4.3 Elevation plate

Describes the use of the elevation plate for positioning wireless/body-worn hearing instruments.

4.4 The AURICAL HIT handle

Provides instructions and safety notes for carrying AURICAL HIT using its handle.

5 Testing hearing instruments

5.1 Calibrating the reference microphone

Step-by-step guide for calibrating the reference microphone for accurate measurements.

5.2 Positioning the hearing instrument for testing

Guidelines for positioning hearing instruments for acoustic, telecoil, and directional tests.

5.3 Using the battery simulator

Instructions on using battery simulators for powering and measuring hearing instruments.

5.4 Coupler adapters

Describes adapters for use with the 2 cc coupler for BTE and ITE/RIE/thin-tube instruments.

5.5 Traditional BTE hearing instruments

Procedure for testing standard BTE hearing instruments using the HA-2 adapter.

5.6 Thin-tube hearing instruments

Procedure for testing thin-tube, RIE, and RIC hearing instruments using the HA-1 adapter.

5.7 ITE hearing instruments

Procedure for testing custom ITE, ITC, and CIC hearing instruments using the HA-1 adapter.

5.8 Telecoil testing

Steps for performing telecoil testing on hearing instruments in AURICAL HIT.

5.9 Hearing instruments with wireless transmitters (e.g. FM)

Guidance for testing hearing instruments with wireless sound transmission, including FM.

5.10 How to perform a standard test

Detailed procedure for conducting standard hearing instrument tests using OTOsuite.

5.11 How to test the directional microphone

Explains functional testing of directional microphones in AURICAL HIT due to chamber limitations.

6 Maintenance and Calibration

Maintenance

States that AURICAL HIT requires no preventive maintenance other than cleaning and calibration.

Repair

Instructs users to contact their supplier for any repair needs and safety precautions.

7 Other references

6.1 Cleaning

Provides instructions for cleaning the AURICAL HIT device and its adapters.

Adapters

Instructions for cleaning adapters, including removal of acoustic putty residue.

10 Transport and storage

Temperature

Specifies the temperature range for transport and storage of the AURICAL HIT device.

Air humidity

Specifies the air humidity limits for transport and storage, including non-condensing.

13 Manufacturer

13.1 Responsibility of the manufacturer

Outlines the conditions under which the manufacturer is responsible for the equipment's safety and performance.

otometrics Aurical Hit User Manual

Table of Contents