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If
a
more
specific
frequency
analysis
of
the
feedback
is
desired,
change
the
resolution
of
the
system
to
1/24
octave
and
adjust
the
smoothing
in
the
General
LSM
or
REM
settings
menu.
This
image
shows
the
similar
feedback
as
above
at
1/24
octave,
smoothing
1.
Using
this
information,
make
any
necessary
adjustments
to
the
hearing
instrument
to
reduce
or
remove
the
feedback.
Hearing
Loss
Simulator
The
Hearing
Loss
Simulator
demonstrates
the
effect
of
the
client’s
hearing
loss
for
the
significant
third
party.
The
program
attenuates
an
input
signal
to
simulate
the
audiogram.
The
third
party
listens
to
the
free
field
speakers.
The
Hearing
Loss
Simulator
requires
the
client’s
Audiogram
data.
This
data
can
be
manually
entered
in
the
Audio
screen
of
this
or
any
other
task.
How
to
use
the
Hearing
Loss
Simulator
1.
Select
the
Hearing
Loss
Simulator
tab
on
the
toolbar.
2.
Enter
the
Audiogram
values
manually
if
the
data
is
not
automatically
imported
to
this
screen.
3.
Select
the
input
signal
type:
File
or
CD.
Select
the
track
and
the
Play
button
on
the
control
panel.
The
HLS
output
is
directed
to
the
free
field
loudspeakers.
4.
Select
Simulate
to
turn
on
the
simulation
of
the
client's
hearing
loss.
Deselect
Simulate
to
present
the
stimulus
as
a
normal
hearing
person
would
perceive
the
sound.
Toggle
between
these
selections
as
necessary.
5.
The
Reset
option
restores
the
audiogram
to
the
original
state.
Use
this
option
if
you
have
modified
the
audiogram
while
in
the
simulate
mode
but
want
to
undo
the
changes.
The
changes
to
the
Audiogram
that
are
made
on
the
HLS
screen
are
temporary
and
will
not
affect
the
client's
original
audiometry
record.
6.
A
volume
control
adjustment
bar
allows
modifying
the
audio
for
manual
adjustment
of
the
output
level
of
the
free
field
speakers.
This
allows
the
practitioner
to
demonstrate
improvements
to
hearing
loss
with
amplification
or
what
happens
when
further
hearing
loss
occurs.
7.
To
stop
the
playback,
select
the
Stop
button
on
the
player.
Note:
It
is
recommended
you
use
a
variety
of
tracks
from
the
list
to
demonstrate
the
hearing
loss.
Master
Hearing
Aid
Master
Hearing
Aid
is
an
alternative
to
using
a
stock
hearing
aid
to
demonstrate
the
benefits
of
amplification
to
an
inexperienced
user.
The
system
applies
the
fitting
rules
by
default
to
the
patient's
audiogram
and
simulates
a
hearing
aid.
The
patient
listens
to
this
signal
through
the
headphones.
Options
for
editing
the
gain
applied
to
the
audiogram
are
provided.
About
the
Master
Hearing
Aid
Display
The
Master
Hearing
Aid
screen
displays
a
graph
with
dB
Gain
on
the
vertical
axis
and
Frequency
in
Hz
on
the
horizontal
axis.
The
plot
on
the
graph
represents
the
gain
applied
to
the
patient’s
Audiogram.
The
NAL
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