RM500SL
®
User's Guide Version 3.4
June 2011
12 On-Ear Measures Screen Setup
Section overview
To accommodate your working preferences, the appearance of On-ear measurement
screens may be changed in several ways.
On-ear right or left display
The RM500SL can retain and display On-ear test results for two ears. To switch between
left and right test results, press the <Left/Right> key.
Graph, table or 2cc target format
Most on-ear test screens may be viewed in graphic or tabular format.
•
In RECD and Directional tests, highlight and <PICK> [Format] to toggle between
[Graph] and [Table] views.
•
In Speechmap and Insertion gain, highlight and <PICK> [Format], then highlight and
<PICK> [Graph], [Table] or [2cc targets] from the drop-down list.
•
In [2cc targets] format, reserve gain and fitting formula may be changed. Highlight &
<PICK> the appropriate window, then highlight & <PICK> the reserve gain or fitting
formula from the drop-down list.
In Speechmap, if DSL or NAL-NL1 has been selected as a target method, then 2cc coupler
targets for user gain, full-on gain and OSPL90 are provided. The full-on gain is just the user
gain plus the reserve gain. If no target method has been selected, only 2cc OSPL90 values
are indicated.
Target gains are for speech-like signals at a 70 dB input SPL; OSPL90
targets are for 90 dB pure tones.
On-ear targets are converted to 2cc coupler values by using age-appropriate average or
measured (if available) RECD values and the appropriate microphone location effects for
the desired style of hearing instrument.
The gain values given assume the hearing instrument is linear for a 70 dB speech input.
This assumption is necessary to allow the microphone location effects to be incorporated.
For BTE and body aids, the 2cc coupler values provided assume a fully-occluding earmold
with #13 tubing extending to the medial tip of the earmold. If a different type of mold is
used, alterations to these values should be made to account for the different acoustic
characteristics. For CIC instruments, the 2cc values take into account that the instrument,
when deeply inserted into the ear canal, will produce a greater SPL in the ear than that
measured in the ITE coupler.
SPL or HL scale
In Speechmap and Insertion gain tests you may view results in either dB HL or dB SPL.
Insertion gain tests
view the hearing aid as improving the sound-field threshold. In
Insertion gain, the HL scale presents aided results as improved sound-field thresholds while
the speech region remains fixed.
58
Summary of Contents for RM500SL
Page 1: ...RM500SL User s Guide Version 3 4 March 2010...
Page 9: ...RM500SL User s Guide Version 3 4 June 2011 EC Declaration of Conformity 9...
Page 10: ...RM500SL User s Guide Version 3 4 June 2011 10...
Page 37: ...RM500SL User s Guide Version 3 4 June 2011 37...
Page 43: ...RM500SL User s Guide Version 3 4 June 2011 telecoil test 43...
Page 51: ...RM500SL User s Guide Version 3 4 June 2011 51...
Page 57: ...RM500SL User s Guide Version 3 4 June 2011 57...
Page 64: ...RM500SL User s Guide Version 3 4 June 2011 64...
Page 78: ...RM500SL User s Guide Version 3 4 June 2011 Screen tour unaided screen 78...
Page 97: ...RM500SL User s Guide Version 3 4 June 2011 97...
Page 98: ...RM500SL User s Guide Version 3 4 June 2011 98...
Page 99: ...RM500SL User s Guide Version 3 4 June 2011 99...
Page 102: ...RM500SL User s Guide Version 3 4 June 2011 102...
Page 112: ...RM500SL User s Guide Version 3 4 June 2011 112...
Page 113: ...RM500SL User s Guide Version 3 4 June 2011 113...