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RM500SL
®
User's Guide Version 3.12
March 2015
It is assumed that the hearing aid has been set up for optimal audibility and maximum output. See other sections
of Speechmap Fitting Procedures.
1. Before attaching the FM receiver, couple the hearing aid to the 2cc coupler in the test box and select
Speechmap from the Test box measures menu. Select the appropriate hearing Instrument type (typically
BTE).
2. Highlight and <Pick> Test 1 and choose Speech-std(1), (2) or the ISTS at a Level of 65 dB. Press
<Continue> to run and record the speech passage.
3. Attach the FM receiver to the hearing aid and set the FM receiver to the default setting. The FM transmitter
should be ON and set to MUTE. Repeat step 2 but use Test 2 instead of Test 1. If the results of Test 1 & Test
2 are not similar, the presence of the FM receiver has changed the intended performance of the hearing aid.
Where possible, make programming adjustments to compensate -being careful not to make adjustments that
will change Test 1 results.
4. Move the hearing aid, attached to the coupler and microphone, outside the test box at least 12 in. (30 cm)
away from the FM transmitter*. Put FM transmitter microphone, set to Omni, within 2mm of the reference
microphone in the test box.
5. With the FM transmitter unmuted, repeat step 2. Note that the hearing aid is outside the test box during this
test - Quiet please! The results should be within +/- 2 dB of the results from step 3. If not, change FM settings
and repeat.
* A coupler mic. extension cable is available. See Microphone connection.
Real-ear verification of FM-only open fittings in Speechmap (based on AAA Clinical Practice Guidelines:
Remote Microphone Hearing Assistance Technologies for Children and Youth from Birth to 21 Years. April
2008)
Open fittings must be verified in On-ear mode.
1. Enter Audiometry data and select FM from the Instrument list box.
2. Position the transmitter microphone as in step 4 above. Place the probe tube in the ear canal and couple the
FM-only device to the ear canal as in normal use.
3. At maximum volume setting, select the MPO stimulus. Adjust the receiver settings to meet targets. See
Fitting to targets for loud sounds.
4. At use volume setting, select Speech-std(1), (2) or the ISTS and choose FM chest (84 dB SPL) or FM boom
(93 dB SPL) for the level. Adjust the FM receiver gain/volume settings to meet targets in the 1000 – 4000 Hz
range.
5. Repeat step 3 at use volume setting.
94
- Audioscan RM500SL 1
- User's Guide 3.12 1
- Table of Contents 2
- 1 About RM500SL 6
- SAFETY WARNINGS and NOTICES 7
- Environmental safety 7
- March 2015 10
- Electronic User’s Guide 11
- 2 Getting Started 13
- General care instructions 14
- Microphone care 15
- Battery pill use and care 15
- 3 General Operation 18
- Keypad keys 19
- Menus, lists and buttons 20
- Screen messages and Help 21
- Software updating 21
- 4 General Setup 22
- 5 Networking 24
- NOAH Service Port 25
- Testing the NOAH service port 26
- 6 Single computer connection 27
- Local printer setup 30
- Printing to USB memory 31
- Network printer setup 32
- Printing to a network file 32
- Storing and restoring data 33
- Data storage using NOAH 35
- 8 Test Box Measures - Setup 36
- 1996 or 2003 ANSI standard 37
- ANSI test frequencies 37
- Test box calibration facts 37
- 9 ANSI Hearing Aid Tests 42
- ANSI test results 44
- ANSI input-output curves 44
- ANSI telecoil terminology 45
- Telecoil test results 46
- 10 Other Test Box Measures 48
- Multicurve procedure 49
- Multicurve results 49
- Battery drain test 50
- Manual control procedure 50
- 11 Sensory loss simulator 53
- 12 On-Ear Measures - Setup 54
- Max TM SPL setup 56
- ABR nHL to eHL setup 57
- Positioning the client 57
- Positioning the probe tube 58
- SPL or HL scale 60
- Hide or show on-ear curves 61
- On-ear feedback test 62
- On-ear noise reduction test 62
- On-ear manual control 63
- 15 Occlusion Effect Test 65
- 16 RECD measurement 66
- Measure RECD 67
- RECD results 68
- ANSI S3.46(2013) RECD 69
- RECD protocols 69
- RECD facts 70
- 17 Insertion Gain 72
- Insertion gain in HL 73
- Audiometric data entry 73
- REUR measurement procedure 74
- REAR measurement procedure 75
- 18 Speechmap 77
- DSL 5.0 changes 78
- NAL-NL1 in Speechmap 78
- NAL-NL2 in Speechmap 78
- Camfit in Speechmap 79
- Using Speechmap 79
- Speechmap Setup 80
- Screen tour - aided screen 82
- On-ear or Test box mode 82
- Assessment data entry 87
- Assessment data choices 88
- Open fittings in Speechmap 91
- FM fitting and verification 93
- Speechmap stimuli 95
- Stimulus levels 95
- Microphone location effects 96
- Deep insertion compensation 97
- Speech signal analysis 97
- 21 Troubleshooting 98
- Test box speaker overdriven 99
- Invalid on-ear calibration 101
- Barcode scanner malfunction 101
- 22 Technical 104
- Specifications 104
- Sensory Loss Simulator 105
- 23 Glossary 107
- 24 References 112
- 25 Appendix 1 115
- 26 Appendix 2 118
- 1 Introduction 119
- 2 The test signals 119
- 2.1 Narrow-band signals 120
- 2.2 Broad-band signals 120
- 2.2.3 Real-speech signals 122
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