HP RM500SL manual FastFacts 16.5 Reur measurement procedure

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16.5 REUR measurement procedure

Performing a REUR test erases all existing REAR and REIG data for the current test ear. REUR should be measured only if Transducer = Soundfield. Otherwise it is more accurate to use average. See 16.4: Audiometric data entry.

1)Press <Tests>, then highlight and <PICK> [Insertion gain] from the REM list.

2)Referring to 10: Real-Ear Measurement Setup and 11: REM Screen Setup, prepare the system, position the patient and insert the probe tube.

3)If REUR is set to Average, highlight and <PICK> [Audiometry] then highlight and <PICK> [REUR] to toggle to [Measure]. Press <Continue> to advance to the Threshold entry poster. You may enter threshold data at this time (see 16.4: Audiometric data entry) or press <Continue> to proceed with the measurement.

4)Highlight and <PICK> REUR (below REAR/REIG test 3).

5)Press <Continue> to accept the default 55 dB SPL Pink noise stimulus and capture the REUR curve OR highlight and <PICK> [Stimulus] and [Level] to select other values. These choices have no impact on the resulting REIG.

6)If there is a notch in the 4000 to 8000 Hz region, try advancing the probe tube 2 mm and repeating step 3. If the notch moves to a higher frequency, repeat this step until the notch moves beyond the highest frequency of interest.

Because it is analyzed in 1/3 octave bands, the Noise stimulus produces a REUR 12 dB below that produced by the Swept stimulus at the same overall level.

The Average REUR used is shown at right. Measured REUR will vary from this.

For small children the peak may shift to the right and become sharper. Drainage tubes and perforated ear drums will cause large differences - usually around 1 kHz.

FastFacts 16.5: REUR measurement procedure

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RM500SL User’s Guide Version 2.8

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Contents USER’S Guide General Operation Table of ContentsGeneral Setup Getting StartedAnsi S3.22 Hearing Aid Tests Hearing Instrument Tests SetupOther Hearing Instrument Tests REM Manual Control Troubleshooting Speechmap Fitting ProceduresSpeechmap Technical Details Section overview About RM500SLHelp is available on the following topics by pressing Help FastFacts 1.3 Electronic users guide FastFacts 1.4 Warranty, trademarks, acknowledgements Warranty, Trademarks, AcknowledgementsCispr Electromagnetic Compatability EMCFollowing topics are covered in this section FastFacts 2.1 Getting started Unpacking and connectingFastFacts 2.2 Unpacking and connecting Getting StartedFastFacts 2.3 Microphone connection Microphone connectionProbe microphone FastFacts 2.4 Microphone care Battery pill use and careFastFacts 2.5 Battery pill use and care Microphone care Coupler microphoneFastFacts 2.6 Mouse, keyboard, barcode scanner Mouse, keyboard, barcode scannerSection overview This section covers the following topics General OperationExternal printer, auxiliary audio outputs FastFacts 2.7 External printer, auxiliary audio outputsFunction Keypad Input device operationFastFacts 3.2 Input device operation FastFacts 3.3 Barcode data input Barcode data inputFastFacts 3.4 Keypad keys Keypad keys Function ButtonFastFacts 3.5 Menus, lists and buttons Menus, lists and buttons Setup Box List BoxScreen messages FastFacts 3.7 Program memory removal and replacementSoftware updating General SetupFastFacts 4.1 General setup Date and time setup FastFacts 4.2 Date and time setupFastFacts 4.3 Display settings Saving test setup Display settingsFastFacts 4.4 Saving test setup FastFacts 5.1 Networking Networking requirements NetworkingFastFacts 5.2 Networking requirements FastFacts 5.3 Networking setup Networking setupOn the RM500SL, see Single computer connectionFastFacts 5.4 Single computer connection FastFacts 6.1 Printing and storing results Printing and Storing ResultsTo load a new roll of paper Internal printer paper loadingFastFacts 6.2 Internal printer paper loading Barcodes, headers and comments on printouts FastFacts 6.4 Local printer setupFastFacts 6.5 Printing to a USB memory stick Printing to a USB memory stickFastFacts 6.6 Network printer setup Network printer setupFastFacts 6.8 Data storage to a network file Printing to a network fileFastFacts 7.4 Output or gain scale Hearing Instrument Tests SetupFastFacts 7.2 HIT a or B display Graph or table format FastFacts 7.3 Graph or table format Output or gain scaleTo change the averaging frequencies Hide or Show HIT curvesFastFacts 7.7 Ansi test frequencies FastFacts 7.8 HIT calibration facts HIT calibration factsFastFacts 7.9 Calibration of HIT reference microphone FastFacts 7.10 Calibration check for coupler microphone Calibration check for coupler microphoneCoupling the hearing instrument FastFacts 7.12 Positioning the hearing instrument Positioning the hearing instrumentFastFacts 8.2 Ansi S3.22-1996 facts Ansi S3.22 Hearing Aid TestsTurn the instrument on Ansi S3.22-2003 factsFastFacts 8.4 Ansi 1996 Linear and AGC tests FastFacts 8.5 Ansi 2003 Linear and AGC tests Ansi 2003 Linear and AGC testsFastFacts 8.6 Ansi test results Ansi test resultsFastFacts 8.7 Ansi input-output curves Ansi input-output curvesFastFacts 8.8 Ansi telecoil terminology Ansi telecoil terminologyFastFacts 8.9 Ansi telephone simulator Tmfs test Ansi telephone simulator Tmfs testFastFacts 8.10 Telecoil test results Telecoil test resultsTurn the hearing instrument on Other Hearing Instrument TestsFastFacts 9.2 Harmonic distortion FastFacts 9.3 Multicurve procedure Multicurve results Multicurve procedureFastFacts 9.4 Multicurve results Spectral analysis in Multicurve FastFacts 9.6 Battery drain testFastFacts 9.8 Sound level meter using manual control Manual control procedureFastFacts 10.2 REM calibration facts Real-Ear Measurement SetupFastFacts 10.3 Calibration of REM probe microphone Calibration of REM probe microphoneCalibration check for probe module FastFacts 10.5 Max TM SPL setup 10.6 ABR nHL to eHL setup Max TM SPL setupFastFacts 10.6 ABR nHL to eHL setup FastFacts 10.8 Positioning the probe tube Positioning the clientFastFacts 11.3 Graph, table or 2cc target format REM Screen SetupFastFacts 11.5 Hide or show REM curves REM Manual ControlSPL or HL scale FastFacts 11.4 SPL or HL scale Hide or show REM curvesManual control measurements FastFacts 12.3 Sound level meter using REM probeSensory loss simulator description Sensory Loss SimulatorFastFacts 13.2 Sensory loss simulator operation FastFacts 14.1 Occlusion effect measurement Occlusion Effect TestOcclussion effect measurement Turn the hearing aid OFFFastFacts 15.2 Recd facts Recd real-ear to coupler differenceFastFacts 15.3 Recd coupler response Recd coupler responseAllow the foam tip to fully expand in the ear Recd real-ear responseFastFacts 15.4 Recd real-ear response FastFacts 15.5 Recd results Recd resultsFastFacts 16.1 Insertion gain Insertion gain in SPL Insertion GainFastFacts 16.2 Insertion gain in SPL FastFacts 16.3 Insertion gain in HL Insertion gain in HLFastFacts 16.4 Audiometric data entry Audiometric data entryTo enter data from a barcode see 3.3 Barcode data input To enter assessment data and parameters manuallyFastFacts 16.5 Reur measurement procedure Reur measurement procedureFastFacts 16.6 Rear measurement procedure Rear measurement procedureFastFacts 16.7 SII calculation in Insertion gain SII calculation in Insertion gainFastFacts 17.1 Speechmap 17.2 Speechmap facts SpeechmapFastFacts 17.2 Speechmap facts FastFacts 17.3 DSL 5.0 in Speechmap DSL 5.0 in SpeechmapFastFacts 17.4 DSL 5.0 changes NAL-NL1 in Speechmap DSL 5.0 changesFastFacts 17.5 NAL-NL1 in Speechmap FastFacts 17.6 Using Speechmap Using SpeechmapTo enter audiometric data, see 18.2 Assessment data entry 0611 RM500SL User’s Guide Version FastFacts 17.9 REM or S-REM mode REM or S-REM modeFastFacts 17.10 SII calculation in Speechmap 17.10SII calculation in SpeechmapTo enter assessment data manually Speechmap Fitting ProceduresFastFacts 18.2 Assessment data entry FastFacts 18.3 Assessment data choices Assessment data choicesFastFacts 18.4 Assessment data choices From 18.3 Assessment data choicesFastFacts 18.5 Fitting to targets for soft speech Fitting to targets for soft speechFastFacts 18.6 Fitting to targets for loud sounds Fitting to targets for loud soundsFastFacts 18.8 Open fittings in Speechmap Fitting to targets for mid-level speechFastFacts 18.9 FM fitting and verification FM fitting and verificationFastFacts 19.2 Speechmap stimuli Speechmap Technical DetailsFastFacts 19.3 Stimulus levels Stimulus levelsFastFacts 19.4 Microphone location effects Microphone location effects Microphone Location EffectsFastFacts 19.5 Speech signal analysis Speech signal analysisFastFacts 20.1 Troubleshooting Self test failures TroubleshootingFastFacts 20.2 Self test failures FastFacts 20.4 HIT curves inconsistent FastFacts 20.7 No HIT reference mic. detected No HIT reference mic. detectedFastFacts 20.10 Invalid REM calibration Invalid HIT calibration Invalid HIT CalibrationFastFacts 20.12 Barcode scanner malfunction 20.11REM speaker overdrivenHIT Chamber Technical SpecificationsStorage & Transportation GeneralGlossary Page Page Page References Page Page 0611 RM500SL User’s Guide Version Test signals Verifit and RM500SL Test Signals and AnalysisIntroduction Broad-band signals Loud Vocal Effort Effect re nominal band SPL Pink noise signal analysis Analysis of broad-band signalsVerifit / RM500SL Speechmap 07/05/06 Example of speech envelope and Ltass 07/05/06 Ltass for Speechmap speech signals at average vocal effort Ltass Dynamic