D
‐
0125127
‐
C
28
RP
is
applied
by
default.
A
new
rule
can
be
selected
from
the
list
on
the
right
side
of
the
display.
A
volume
adjustment
bar
allows
for
manual
adjustment
of
the
output
level.
The
control
panel
on
the
right
of
the
display
provides
options
for
input
signal
source
and
the
task
icons
for
Normal
and
Simulate.
The
Master
Hearing
Aid
applies
gain
separately
for
each
ear.
If
audiogram
values
are
entered
for
the
left
and
right
ear,
the
selected
fitting
rules
will
be
applied
to
each
ear
separately.
Different
rules
may
be
entered
for
each
ear
(i.e.
NAL
‐
RP
for
left
ear
and
BERGER
for
right
ear).
If
an
audiogram
is
entered
only
for
one
ear,
the
gain
will
not
be
adjusted
for
the
opposite
ear
and
the
sound
for
that
ear
will
be
normal.
If
Binaural
mode
is
selected,
the
sound
will
be
heard
from
both
channels
(left
and
right).
If
Monaural
mode
is
selected,
the
sound
will
be
heard
only
from
the
channel
corresponding
to
the
active
ear
when
the
channel
for
the
opposite
ear
will
be
muted.
Input
signal
File
allows
the
user
to
play
sound
files.
The
program
supports
MP3
and
WAV
files
and
comes
with
a
preset
MedRx
Sounds
Sensations
set
of
files.
After
the
option
is
activated,
use
the
player
panel
to
control
the
playback.
CD
allows
the
user
to
play
music
CDs.
After
the
option
is
activated,
use
the
player
panel
to
control
the
playback.
How
to
use
the
Master
Hearing
Aid:
1.
Select
the
Master
Hearing
Aid
(MHA)
icon
from
the
main
screen.
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.
4.
Select
Monaural
or
Binaural.
5.
Select
the
Simulate
icon
to
modify
the
input
signal
according
to
the
selected
rule.
This
selection
allows
the
patient
to
hear
the
benefits
of
amplification.
Deselect
the
Simulate
icon
which
will
send
the
input
signal
through
to
the
inserts
without
modification.
The
patient
is
listening
to
the
signal
without
any
amplification
benefit.
Toggle
between
these
two
selections
as
necessary.
6.
If
the
simulated
frequency
response
needs
to
be
adjusted
based
on
feedback
from
the
patient,
manually
edit
the
response
by
clicking
on
the
gain
curve
at
the
desired
frequency
and
new
gain
level.
The
gain
curve
of
the
selected
test
ear
on
the
control
panel
can
be
edited.
To
edit
the
other
ear,
click
the
appropriate
test
ear
icon
on
the
control
panel
first.
Hint:
Use
the
track
return
icon
on
the
player
control
panel
to
replay
one
track
continuously.
The
Reset
option
restores
the
rule
to
the
original
state.
Use
this
option
if
you
have
modified
the
rule
but
want
to
undo
the
changes.
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