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Audioscan RM500SL®User's Guide 3.12 March 2015

RM500SL®User's Guide Version 3.12  March 2015 EC Declaration of Conformity10

RM500SL®User's Guide Version 3.12  March 2015Test box speaker overdriven!• This message indicates that the test chamber speaker is unable to pr

RM500SL®User's Guide Version 3.12  March 2015place. Try Test box calibration using the reference microphone of the on-ear probe microphone in p

RM500SL®User's Guide Version 3.12  March 2015If your scanner has a Unitech logo, scan the following barcode to reset the scanner to its default

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RM500SL®User's Guide Version 3.12  March 201522 Technical SpecificationsSpecifications subject to change without noticeEnvironmental condition

RM500SL®User's Guide Version 3.12  March 2015Test stimulus accuracy at reference mic. for tones(2000- 8000 Hz)...

RM500SL®User's Guide Version 3.12  March 2015106

RM500SL®User's Guide Version 3.12  March 201523 GlossaryAGC, Automatic Gain Control, the means by which gain is automatically controlled by th

RM500SL®User's Guide Version 3.12  March 2015FOG, full on gain, gain for a 50 dB input SPL with the gain control set to maximum ANSI S3.22)Gain

RM500SL®User's Guide Version 3.12  March 2015MPO, Maximum Power Output, the maximum SPL that a hearing aid can deliver in response to a stea

RM500SL®User's Guide Version 3.12  March 2015 Electronic User’s GuideA printable User’s Guide is on the system USB flash drive which contains

RM500SL®User's Guide Version 3.12  March 2015REOR is used to evaluate the seal of an earmold. It is not related to the required gain of a heari

RM500SL®User's Guide Version 3.12  March 2015uncomfortable.VGA, video graphics adapter.VC, Volume Control, a user-operated gain control.Warble

RM500SL®User's Guide Version 3.12  March 201524 ReferencesAAA Clinical Practice Guidelines: Remote Microphone Hearing Assistance

RM500SL®User's Guide Version 3.12  March 2015Hawkins, D.B., Walden, B.E., Montgomery, A.A., & Prosek, R.A., (1987). Description and valid

RM500SL®User's Guide Version 3.12  March 2015characteristics for young children. Journal of the Academy of Rehabilitative Audiology, 20, 25-38

RM500SL®User's Guide Version 3.12  March 201525 Appendix 1 Manufacturer Disclosure Statement for Medical Device Security115

RM500SL®User's Guide Version 3.12  March 2015116

RM500SL®User's Guide Version 3.12  March 2015117

RM500SL®User's Guide Version 3.12  March 201526 Appendix 2 AudioNote 2.1 VERIFIT and RM500SL Test Signals and AnalysisFor additional details

1 IntroductionThe Verit and RM500SL are full-duplex dual-chan-nel audio measurement systems designed for the testing and tting of all types of hear

RM500SL®User's Guide Version 3.12  March 2015 How to Avoid Undesirable Side EffectsDuring the development of the hearing aid anal

2.1 Narrow-band signals2.1.1 Sinusoidal (pure tones)Sinusoidal signals are used in the ANSI hearing aid tests, in Multicurve 2 cm3 frequency respons

2.2.2 Dual-direction pink noise signal (Verit only)This unique test signal is available in the dual-source Verit test chamber and for on-ear measur

2.2.3 Real-speech signalsReal-speech signals are provided in Speechmap for both On-ear and Test box measurement modes. Four dierent digitized speec

Figure 3: LTASS for Speechmap speech signals at average vocal eortFigure 4: LTASS for Speech-std(1), Speech4000, Speech5000, Speech6300 for the FM

Figure 5: Loud vocal eort eect in dB re nominal band levels. Nominal band levels are band levels for an overall SPL of 65 dB. This shaping is appl

In addition to these well-controlled and repeatable signals, live speech may be used as a test signal. It will, of course, be unequalized and at an u

3.1 Pink noise signal analysisAll band levels are calculated with an averaging time of 128 ms.For a linear hearing aid, a pink noise stimulus will re

The speech-reception threshold (SRT) is attained when the LTASS is at threshold (approximately - de-pending on test material and the individual). The

Figure 10: Speech is detectable but not understandable if the 99th percentile is at thresholdFigure 11: When LTASS is at threshold, SII ≈ 33% which

Figure 12: The highest SII is obtained when the entire speech envelope is above thresholdFigure 13: Level of 99th percentile for Speechmap speech sig

RM500SL®User's Guide Version 3.12  March 20152 Getting StartedThis section provides instructions for unpacking the RM500SL and

Figure 14: Level of 30th percentile for Speechmap speech signals at average vocal effortFigure 15: Dynamic range of Verit speech signals at average

RM500SL®User's Guide Version 3.12  March 2015NOTE: A microphone extension cable (VA-131, 133) is available from Audioscan. Standard audio exte

RM500SL®User's Guide Version 3.12  March 2015 Microphone careCoupler microphone:1. DO NOT twist the cable when attaching a coupler to the c

RM500SL®User's Guide Version 3.12  March 2015 Mouse, keyboard, barcode scannerThe RM500SL may be operated from the built-in keypad, a

RM500SL®User's Guide Version 3.12  March 2015WARNING: To avoid the risk of electrical shock, any line-powered peripheral equipment connected to

RM500SL®User's Guide Version 3.12  March 20153 General OperationThis section describes the use of the built-in keypad, a QWERTY keyboard (not

RM500SL®User's Guide Version 3.12  March 20152. Hold the printout so that the barcode is flat. With the scanner 6 – 8 in. (15 – 20 cm) from the

Table of Contents1 About RM500SL...

RM500SL®User's Guide Version 3.12  March 2015Keypad ButtonFunction<Help> Summon context-sensitive Help Screen.<Setup> Summon Setup

RM500SL®User's Guide Version 3.12  March 2015a highlighted square at the right-hand end of a white window. A screen button with a down arrow in

RM500SL®User's Guide Version 3.12  March 20154 General SetupThis section covers Date and Time setup, Display settings (including mouse pointer

RM500SL®User's Guide Version 3.12  March 20152. Highlight and <PICK> [Save test setups on power off] to toggle between Yes and No.To enab

RM500SL®User's Guide Version 3.12  March 20155 NetworkingConnection to a computer network allows screen images to be printed on a network prin

RM500SL®User's Guide Version 3.12  March 2015Note for network administrators: To manually change networking settings, uncheck Auto and click th

RM500SL®User's Guide Version 3.12  March 20153. Select <Continue>.4. You will be prompted to restart the equipment. Select <Continue&

RM500SL®User's Guide Version 3.12  March 20156 Single computer connectionMost office computers today are already connected to a ne

RM500SL®User's Guide Version 3.12  March 2015255.255.255.0 in the Subnet mask box.6. On the RM500SL, un-check Auto (use DHCP) on the Setup net

RM500SL®User's Guide Version 3.12  March 20157 Printing and Storing ResultsPressing <Print> will cause the current screen image to be pr

RM500SL®User's Guide Version 3.12  March 2015Calibrating test box reference microphone...

RM500SL®User's Guide Version 3.12  March 20157. Place the roll in the paper tray and advance another 10 in. (25 cm) of paper.8. Lower the print

RM500SL®User's Guide Version 3.12  March 20151000, D2680, D4160, 6940 and 460.Failure to follow operating instructions could place the user or

RM500SL®User's Guide Version 3.12  March 2015Network printer setupTo print to a network printer or to a Windows-shared printer on the network,

RM500SL®User's Guide Version 3.12  March 20157. Press <Continue> to save the settings and exit the setup menu.8. To save a screen image t

RM500SL®User's Guide Version 3.12  March 2015store features saves this database in xml format which may be viewed with a web browser or importe

RM500SL®User's Guide Version 3.12  March 20152. Highlight and <PICK> [Restore session from file].3. Highlight and <PICK> the Client

RM500SL®User's Guide Version 3.12  March 20158 Test Box Measures - SetupThe appearance of Test box measures screens may be changed in several

RM500SL®User's Guide Version 3.12  March 20153. Press <Continue> to return to the test screen.Hiding a curve does not erase it. To erase

RM500SL®User's Guide Version 3.12  March 2015 Calibrating test box reference microphoneRemove any coupler from the coupler microphone before c

RM500SL®User's Guide Version 3.12  March 2015 Calibration check for coupler microphoneAccuracy of test box measurements depends on

RM500SL®User's Guide Version 3.12  March 2015RECD protocols...

RM500SL®User's Guide Version 3.12  March 2015When threading the couplers onto the coupler microphone, it is very important that they be firmly

RM500SL®User's Guide Version 3.12  March 2015 Positioning the hearing instrument1. The hearing instrument should be coupled to the appropriate

RM500SL®User's Guide Version 3.12  March 20159 ANSI Hearing Aid TestsThese tests follow the procedures of ANSI S3.22-1996 or ANSI S3.22-2003 a

RM500SL®User's Guide Version 3.12  March 2015The OSPL90 curve, the HFA (or SPA) and peak value of this curve, the frequency of the peak, the HF

RM500SL®User's Guide Version 3.12  March 2015settings that result in the highest gain for soft sounds and the lowest gain for loud sounds. This

RM500SL®User's Guide Version 3.12  March 2015used. See ANSI S3.22-1996 facts and ANSI S3.22-2003 facts. The [Input/Output] test allows you to g

RM500SL®User's Guide Version 3.12  March 20151. First, complete an ANSI [Linear] or [AGC] test, then press <Tests>.2. Highlight & <

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RM500SL®User's Guide Version 3.12  March 201510 Other Test Box MeasuresIn addition to the tests of ANSI S3.22, the RM500SL also provides the f

RM500SL®User's Guide Version 3.12  March 2015responded. Multicurve procedureMulticurve generates 1 to 4 output or gain response curves using e

RM500SL®User's Guide Version 3.12  March 2015General...

RM500SL®User's Guide Version 3.12  March 2015and displayed at 1/12th octave frequencies. Battery drain testThe battery drain test automaticall

RM500SL®User's Guide Version 3.12  March 20152. Highlight and <PICK> the Level window, then highlight and <PICK> the desired stimul

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RM500SL®User's Guide Version 3.12  March 201511 Sensory loss simulator Sensory loss simulator descriptionA pure conductive loss attenuates lo

RM500SL®User's Guide Version 3.12  March 201512 On-Ear Measures - SetupFor accurate, repeatable measurements, the RM500SL must be properly set

RM500SL®User's Guide Version 3.12  March 20154. Hold the probe module 15 - 90 cm (6 – 36 inches) away from and directly in

RM500SL®User's Guide Version 3.12  March 20155. Hold the probe module about 18 in. (0.5 m) in front of the sound-field speaker.6. Hold the micr

RM500SL®User's Guide Version 3.12  March 2015To choose a different Max TM SPL setting:1. Press <Setup>, then highlight and <PICK> [

RM500SL®User's Guide Version 3.12  March 20151. Choose a quiet location and position the client and the sound-field speaker at least 1.5 m (5 f

RM500SL®User's Guide Version 3.12  March 2015Probe tube insertion: The blue lanyard holds the tube in place and the depth marker is at the int

RM500SL®User's Guide Version 3.12  March 20151 About RM500SLThis section describes the Audioscan RM500SL, provides contact, warranty and trade

RM500SL®User's Guide Version 3.12  March 201513 On-Ear Measures Screen SetupTo accommodate your working preferences, the appearance of On-ear

RM500SL®User's Guide Version 3.12  March 2015To change the scale:Highlight and <PICK> [Scale] to toggle between a dB SPL and dB HL scale.

RM500SL®User's Guide Version 3.12  March 201514 On-Ear Instrument MeasuresA number of the tests covered in Test box measures can also be perfo

RM500SL®User's Guide Version 3.12  March 20154. Highlight and <PICK> a stimulus level from the list box.5. Highlight and <PICK> [St

RM500SL®User's Guide Version 3.12  March 20155. Highlight and <PICK> [Start test] to start the test. [Start test] c

RM500SL®User's Guide Version 3.12  March 201515 Occlusion Effect TestThe occlusion effect refers to the unnatural sound of one’s own voice tha

RM500SL®User's Guide Version 3.12  March 201516 RECD measurementThe RECD (real-ear to coupler difference) may be individually measured to impr

RM500SL®User's Guide Version 3.12  March 2015 Measure RECD Connect the RECD transducer to the RECD jack on the front of the test chamber.Prepa

RM500SL®User's Guide Version 3.12  March 20152. Select the RECD coupling method that will be used on the ear. Audioscan software suppor

RM500SL®User's Guide Version 3.12  March 2015 ANSI S3.46(2013) RECD The ANSI S3.46(2013) Real Ear standard advises RECD measurement protocols

RM500SL®User's Guide Version 3.12  March 2015VA-131 Microphone extension cable (3') for use with Audioscan analyzersVA-133 Microphone ex

RM500SL®User's Guide Version 3.12  March 2015and the implications of each. ANSI S3.46 method:RECD On-ear measurement: Audioscan RECD transduce

RM500SL®User's Guide Version 3.12  March 2015hearing aids and is approximately true for insert earphones with the supplied foam tips. The acous

RM500SL®User's Guide Version 3.12  March 201517 Insertion GainInsertion gain is the difference between aided and unaided ear canal SPL (REIG =

RM500SL®User's Guide Version 3.12  March 2015 Insertion gain in HLRefer to On-Ear Measures - Setup and On-Ear Measures Screen Setup

RM500SL®User's Guide Version 3.12  March 2015manually using a mouse, the keypad or the numeric keypad on an external keyboard. See Mouse, keyb

RM500SL®User's Guide Version 3.12  March 2015data at this time (see Audiometric data entry) or press <Continue> to proceed with the measu

RM500SL®User's Guide Version 3.12  March 2015Insertion gainNOTE: Because it is analyzed in 1/3 octave bands, the Noise stimulus produces a REAR

RM500SL®User's Guide Version 3.12  March 201518 SpeechmapSpeechmap presents hearing threshold, UCL and amplified speech spectra as SPL in the

RM500SL®User's Guide Version 3.12  March 20153. There is no provision to input the number of compression channels. This may be useful when the

RM500SL®User's Guide Version 3.12  March 2015are of little value in estimating amplified speech levels. Matching amplified speech to the LTASS

RM500SL®User's Guide Version 3.12  March 2015 Declaration of Electromagnetic Compatibility (EMC)Medical electrical equipment needs special pre

RM500SL®User's Guide Version 3.12  March 2015• To access Speechmap: press <Tests>, then highlight and <PICK> [On-e

RM500SL®User's Guide Version 3.12  March 20152. To remove a checked stimulus from the list, highlight and <PICK> the stimulus you want to

RM500SL®User's Guide Version 3.12  March 2015 Screen tour - aided screen On-ear or Test box modeThe Speechmap environment provides two hearin

RM500SL®User's Guide Version 3.12  March 2015the hearing aid settings and cannot be reliably predicted from 2cc coupler measurements. SII calc

RM500SL®User's Guide Version 3.12  March 20152. Format the USB stick for data using the Audioscan Updater.3. Create digital sound files that ar

RM500SL®User's Guide Version 3.12  March 2015• Removing the USB stick while a Test post is open may cause unexpected behavior. Close the Test p

RM500SL®User's Guide Version 3.12  March 2015Example of user-supplied files, “user.wav”, “user_-4.wav” and “user_+2.5.wav”.86

RM500SL®User's Guide Version 3.12  March 201519 Speechmap Fitting ProceduresThe Speechmap fitting screen provides a number of choices for inpu

RM500SL®User's Guide Version 3.12  March 2015 Assessment data choicesThe following audiometric assessment parameters can be specified in the S

RM500SL®User's Guide Version 3.12  March 2015Enter, Measure] if the target rule is NAL-NL2 or [Average, Enter, Measure] otherwise. The RECD is

RM500SL®User's Guide Version 3.12  March 2015to misuse, or unauthorized alteration or repair.This warranty does not apply to battery substitute

RM500SL®User's Guide Version 3.12  March 2015 Fitting to targets for loud sounds4. Select Test 2 & set stimulus to [MPO]. In test box mod

RM500SL®User's Guide Version 3.12  March 2015<Continue> to run the complete passage. Repeat as necessary. Achieving this goal may require

RM500SL®User's Guide Version 3.12  March 2015 Verifying Frequency Compression/ Frequency-Lowering Hearing Instruments in SpeechmapFrequency

RM500SL®User's Guide Version 3.12  March 2015appear in the Test 1 curve, it may indicate that the hearing aid has no gain at the selected band

RM500SL®User's Guide Version 3.12  March 2015It is assumed that the hearing aid has been set up for optimal audibility and maximum output. See

RM500SL®User's Guide Version 3.12  March 201520 Speechmap Technical DetailsSpeechmap provides a variety of stimuli for the testing

RM500SL®User's Guide Version 3.12  March 2015spectrum is from Cornelisse et al (1991) adjusted to a 1 m reference.1/3 octave band SPL Add to ba

RM500SL®User's Guide Version 3.12  March 20151600 2.5 -0.3 -1.9 2.0 -4.0 6.12000 4.1 3.8 2.1 3.3 -4.0 6.12500 3.5 5.0 4.8 5.0 -3.0 6.43150 2.8

RM500SL®User's Guide Version 3.12  March 201521 TroubleshootingThis section covers common problems encountered when using the RM500SL. If you

RM500SL®User's Guide Version 3.12  March 2015 Test box high distortion or noiseHigh distortion and/or noise numbers in an ANSI test• There may