Fitting guide
1.
ReSound LiNX TS™ instruments default to the
following program configuration:
• P1— Binaural Directionality™ II (binaural fittings, LiNX TS 9 only), or
Basic + SoftSwitching™ (monaural fittings)
• P2 - Restaurant
• P3 - Acoustic Phone
Notes:
• For LiNX TS 7 products, Natural Directionality II is the default for P1.
• The Tinnitus Sound Generator (TSG) can be activated in any program, but Telecoil.
• The TSG can be turned ‘On’ in combination with the hearing instrument amplification or activated in isolation as TSG only.
• The TSG volume slider is in dB SPL. The TSG settings and audiogram can visually be displayed in dB SPL or dB HL.
• The binaural link option is not available in the TSG setup, therefore
programming changes for Range, Sound Preset and Volume need
to be applied to the right and left sides separately. Features in the
synchronization box will be linked.
• To fit LiNX TS you will need to be using Aventa 3.7 or newer.
1a.
Follow the steps listed below to activate the TSG
1. Activate the TSG (two options)
Option 1a
• Activate the TSG in combination with Binaural Directionality.
• Click on the “Binaural Directionality” program tab
• Click on the “Tinnitus Sound Generator” tab on the left side of the
screen.
• Select the ‘On’ option to activate the TSG in combination with Binaural
Directionality. (Figure 1.)
Option 1b
• Configure a combination program (other than Binaural Directionality)
for “TSG + Amplification”, or a TSG only program.
• Click on the down arrow below the label on the program tab to
display a drop-down menu. Select the program desired.
• Click on the “Tinnitus Sound Generator” tab on
the left side of the screen. Select the “On” option to activate the
sound generator in that program. (Figure 1a)
TSG.
For TSG only
While in the ‘Tinnitus Sound Generator’ screen, select the “On” option
to activate the TSG, and select ‘Off’ for HI Microphone to deactivate
amplification. (Figure TSG.)
2. Set the TSG volume
The volume of TSG is set using the volume slider. It should be set to a
level that provides relief from tinnitus, but does not completely mask it.
(Figure 2)
Below is a suggestion on how to first fit the TSG. It uses the threshold
of audibility as a starting point.
2.
Find the TSG threshold of audibility (3 steps)
Select a Sound Preset:
• LiNX TS offers 4 sound presets: White Noise, High Frequency Noise,
Speech Noise and Pink Noise. Whitenoise is the default setting. (Figure
3a)
• Any adjustments made to the either the Frequency Range or Volume,
will default the Sound Preset to a ‘Custom’ setting. (Figure 3b)
• If the Sound Preset chosen is already audible to the user, continue to
the next step. If it is not audible, using the volume slider, turn up the
volume until the patient reports that they can just barely hear the TSG
whitenoise. This is the TSG threshold of audibility.
• Increase the volume slider until the patient reports they can no longer
hear their tinnitus. This is the level at which their tinnitus is completely
masked. This is the minimum masking level (MML).
• Set the volume 5-10dB above the threshold level obtained in Step
1, or the sound preset default level. Can go higher than the 10dB if
necessary, but do not completely mask the tinnitus signal. Completely
masking the tinnitus will prohibit habituation. This is where the MML is
important.
3. Set the TSG bandwidth
• Research indicates that broadband signals are very effective when
using sound generators in tinnitus management; because of this, we
recommend that you set the bandwidth at the maximum low- and highcut settings to start with. Frequency shaping can be applied according
to user preference by adjusting the Range section of the TSG. If the
frequency bandwidth is modified, the Sound Preset will result to a
‘Custom’ setting. (Figure 4)
4. Customize the TSG features according to patient preference
• “Amplitude Modulation” can be activated if the patient finds it to be
comfortable. (Figure 5)
• “Amplitude Modulation” causes the TSG to fluctuate in volume, creating
an “ocean-like” noise sequence. A “Mild” setting offers less fluctuation,
whereas a “Strong” setting offers stronger fluctuation.
• “Modulation Speed” controls how quickly the volume fluctuations occur.
A “Slow” setting allows more time between fluctuations, whereas a
“Fast” setting allows less time between fluctuations.
• Selecting ‘Synchronize’ will enable device to device communication
for all features within the outlined ‘Synchronize’ box, resulting in these
features functioning symmetrically. (Figure 5a)
5. Customize the Sound Level Adjustment options
• The “Sound Level Adjustment” options determine how the volume of
the TSG will be controlled. (Figure 6)
• Selecting “Volume Control” will reassign the function of the manual VC
to the TSG only.
• Selecting “Environmental Steering” will allow the volume of the sound
generator to automatically adapt to the listening environment, ensuring
comfort in all situations. When selected, the manual volume control
will control the amplification volume of the hearing instrument.
• Selecting Environmental Steering + VC will combine the use of these
two features. It allows manual VC adjustments while the Environmental
Steering feature is also active.
3.
3a.
4.
5.
5a.
6.
7.
6. Program and save
• To program the instruments and save to NOAH®, click “Save” in the
lower right corner of the screen. This action can be done from within
the “Fit” screen or the “Summary” screen. (Figure 7)
Tinnitus patients have great variance in their needs and preferences for
successful tinnitus management. The information in this fitting guide is
designed to serve as suggested starting points, and can be modified as
needed for individual patients.
MK604143 REV. A