Digital communication systems for hearing implants

COMFORT DIGISYSTEM
Digital communication systems
for hearing implants
Compatibility guide
Why Comfort Digisystem
and hearing implants?
Three factors influence the signal-to-noise-ratio (SNR):
background noise, distance to the speaker and
reverberations. Those with normal hearing are able
to understand speech, even if the noise level is around
6dB higher than the speech level. People with hearing
loss, however, have lost this ability. They struggle due
to deteriorated speech recognition performance in noise
and a reduced dynamic range. In order to obtain
acceptable speech intelligibility, people with hearing loss
need an SNR that is 5-15 dB higher than people with
normal hearing1.
How can speech intelligibility
and SNR be improved?
Why Comfort Digisystem?
Most ALDs which complement hearing aids or implants
are based on a very simple principle: the sound is
captured by a microphone that is positioned closer to the
sound source than the hearing implant. The sound is then
transmitted to a receiver worn by the user. The receiver
transmits the sound into the hearing implant.
Most ALDs use analogue transmission. Although this
technology has undoubtedly been refined since its
introduction, it still suffers from basic deficiencies, such
as hum, signal loss and restricted range.
20
Signal-to-noise ratio in dB
In order to improve speech intelligibility in noisy
environments, a hearing implant is not enough. Several
studies confirm that the use of assistive listening devices
(ALDs) as a complement to hearing implants improves
the speech recognition by up to 20 dB2.
15
10
5
0
90
80
70
60
50
40
30
Average hearing loss in dB
Necessary improvement in signal-to-noise ratio for 50 % recognition of sentences
(adults); (Killion 1997)
Killion, M. (1997). The SIN report: Circuits have not solved the hearing-in-noise problem. The Hearing Journal, Vol. 50, No10, 28-34.
Schafer, E. C., & Thibodeau, L. M. (2006). Speech recognition in noise in children with cochlear implants while listening in bilateral,
bimodal, and FM-system arrangements. American Journal of Audiology, 15(2), 114–126.
1
2
2
Comfort Audio’s technology
Comfort Audio created a completely new digital radio
technology, developed especially for hearing products
and aimed at improving the quality of life of those
suffering from hearing loss.
The technology is called SecureStream Technology
(SST) and has several advantages:
• T
he dynamic range spans over more than 60dB.
• Audio bandwidth of 100-7000 Hz.
• The transmitted sound is crystal clear, without
transmission noise or signal loss due to FSKmodulation (Frequency shift keying).
• The sound is transmitted without time lag.
• Long operating range (between 15-30 m).
• The signal is scrambled, so it is secure from
eavesdropping.
Source: Delta Teknisk-Audiologisk Laboratorium,
Denmark and internal measurement method.
Digital technology also creates new possibilities for sound
processing. Perceptual Speech Enhancement (PSE)
is a unique and extremely powerful sound processing
technology that enhances speech and reduces
background noise. The result is an improved SNR of up
to 20 dB in noisy surroundings with clear and natural
speech reproduction.
The different techniques used in PSE
SNRi
Signal to
Noise ratio
improver
RRC
Reverb
reduction
control
CNR
Constant
Noise
Remover
ABO
Adaptive
Bandwidth
Optimizer
VRC
Virtual Room
Creator
ALDSA or ASDSA
Adaptive Long or Short Distance
Speech AGC (Automatic Gain Control)
(Depending on mode used)
SSMCU
Seamless System Management Control Unit
Comfort Digisystem uses these unique technologies
to full capacity. This flexible series of microphones
and receivers enables people with hearing loss to
hear better even in the most demanding
environments, such as classrooms, workplaces and
conference rooms as well as during telephone calls.
3
Comfort Digisystem
Whatever the situation, Comfort Digisystem provides the best possible
speech reproduction. By combining different microphones and receivers,
a wide range of needs and preferences is met.
Microphones
Small yet rugged, these microphones
are perfect for school, professional
life or at home.
Microphone DM05
Microphone DM10/DM20
The handy clip-on microphone.
Perfect for lectures.
Easy to use. Push-to-talk function. DM20 also
has an integrated receiver, enabling multiple
microphones to be used simultaneously.
Microphone DM30
Microphone DM80
Conference Microphone DC10/DC20
Listen and talk with one single unit. Especially
developed for school. Free Channel Request
(FCR)-function: only one student at a time can talk.
Two different microphone modes (directional/
omni-directional). Can be connected to mobile
phones via Bluetooth.
Advanced microphones with digital sound
processing (PSE). Four different microphone
settings. Bluetooth for mobile phones.
DC20 also has an integrated receiver; can
be connected to a landline telephone via
the TeleLink accessory.
Receivers
The receivers are compatible with all
Comfort Digisystem microphones.
Receiver DT10
Programmer DT05
Receiver DH10
The world’s first digital mini receiver. Powered
by the hearing implant’s battery or an external
adapter.
For wireless configuration of the Receiver DT10.
No computer required.
Receiver with crystal clear sound. Used with neck
loop. Can be used with all hearing implants.
4
Some situations in which Comfort Digisystem is used
Dialogue between two people
The conversation partner wears the Comfort Digisystem microphone, which transfers the sound digitally
to the Comfort Digisystem receiver worn by the person with hearing loss. The receiver transfers the
sound directly into the hearing implant.
The following products can be used: Microphone DM10, Receiver DT10 or DH10.
Conference or group work
The microphone is positioned in the middle of the conference table, picking up the voices of the people
sitting around it. The sound is processed and transmitted digitally to the receiver worn by the person with
hearing loss. Sound is sent directly from the receiver into the hearing implant.
The following products can be used: Conference Microphone DC20, Receiver DT10 or DH10.
Landline telephone
The TeleLink accessory is connected to a landline telephone and is used together with the conference
microphone. The sound from the telephone is sent to the receiver worn by the person with hearing loss
and from there directly into the hearing implant.
The following products can be used: Conference Microphone DC20, TeleLink, Receiver DT10 or DH10.
Mobile phone
During a telephone call, the sound is sent via Bluetooth from the mobile phone to the microphone and
from there to the receiver worn by the person with hearing loss. The receiver transmits the sound directly
into the hearing implant.
The following products can be used: Microphone DM80, Receiver DT10 or DH10.
Pupil with teacher
The teacher’s microphone picks up his/her voice and transmits it to the receiver worn by the pupil with
hearing loss. Natural sound, without background noise, is sent directly into the hearing implant.
The following products can be used: Microphone DM10, Receiver DT10 or DH10.
Lecture
The lecturer wears the microphone to pick up his/her voice. The sound is processed and sent digitally
to the receiver worn by the person with hearing loss and directly into the hearing implant.
The following products can be used: Microphone DM10, Receiver DT10 or DH10.
Special school
In a special school for children with hearing loss, all pupils and even some teachers suffer from hearing
loss. The Microphone DM30 can be used as a push-to-talk microphone, teacher’s microphone and
receiver. Pupils can understand what both the teacher and classmates are saying. At the
same time, they can participate actively in any classroom conversation.
The following product can be used: Microphone DM30
In the car
In a car it is usually rather noisy. Here, several microphones are used, depending on how many people
are sitting in the car. The sound is transmitted to the receiver worn by the person with hearing loss and
from there directly into the hearing implant.
The following products can be used: Microphone DM05, Microphone DM20, Receiver DT10 or DH10.
5
Compatibility Guide
Comfort Digisystem Receivers DH10 and DT10 and necessary accessories
Receiver
DH10
Advanced Bionics, CIs
Cochlear, CIs
Harmony
n
Nucleus® CP810 Ver. A
n*
n
Nucleus CP810 Ver. B
n*
n
Nucleus CP810 Ver. C
n
Nucleus Freedom Body Worn
n
Nucleus® Freedom BTE
n
ESPrit 3G
n
ESPrit
n
n
n
Spectra
n
n
n
SPrint
n
n
n
Baha® BP110
n
n
Baha BP100
n
n
Baha Compact
n
n
Baha® Divino
n
n
Baha® Intenso
n
n
OPUS1 & Tempo+
n
OPUS2
n
DUET2
n
DUET
n
Ponto
n
®
®
®
Oticon Medical, BAHA
n
n
n
* The communication between the Receiver DH10 and the Speech Processor can be performed either through the built-in T-coil or via an external audio cable.
6
External
Telecoil Baha
n
®
MED-EL, CI
External
Telecoil CI
Auria
®
Cochlears BAHA
Audio Cable
n
Receiver
DT10
Amigo FM-CI
Adaptor
Microlink CI S
iConnect
Adaptor
n
n
n
n
n
Euro Access.
Adaptor
FM Battery
Pack Cover
Angled
Battery Pack
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
7
How to fit Receiver DT10 to
Advanced Bionics Auria/Harmony
Required parts
1. The Receiver DT10
2. T he Auria/Harmony sound processor
3. iConnect Adaptor
4.A10 Zinc Air (Note: Only A10 batteries
from ZeniPower® are certified for
use with iConnect Adaptor).
5. The Programmer DT05
1
4
5
2
3
Before fitting the Receiver DT10 to the sound processor
Please ensure that each step below is carefully followed before making any attempt
to connect the Receiver DT10 to the Sound processor.
1. Preparing the Comfort Digisystem
• Use the Programmer DT05 and perform an HA scan of the sound
processor as described in the section “Programmer DT05” in
this guide.
• Attach the Receiver DT10 into the Programmer DT05.
• Choose an appropriate radio transmission channel in accordance
to the frequency scan you made in the previous step and Pair the
Receiver DT10 with the intended Comfort Digisystem microphone.
• Use the Programmer DT05 and configure the following settings
in the Receiver DT10 through the next step while it is attached
into the Programmer DT05
Preparing the Receiver DT10
a.S et a check mark for the “R enable”
b.S et the output level for R to 0 dB
c.S et the check mark for the “Tone
indicator”
d.S et a check mark for the “Auto Sleep”
e.S et a check mark for “Pairing”
f.Uncheck “Always On”
g.S et the Receiver DT10 to the pairing
mode
h.S end all settings to the Receiver DT10
by selecting “Send all” → Continue
i.Ensure that the Comfort Digisystem is
functioning properly by listening to the
transmitted signal through a headphone
connected to the Programmer DT05.
See the picture to the right.
j.Turn off the Comfort Digisystem
8
2.Preparing the sound processor
a.Ensure that the Sound processor is programmed for the
Audio Mixing ratio 50/50
b.Use the programme switch of the Sound processor and select
the intended programme for Audio Mixing ratio 50/50.
c.Take note of the position of the volume control and turn it
counter-clockwise to the end position in order to reduce
the volume to minimum. ( Picture )
d.Turn off the Sound processor.
3.Connecting the Receiver DT10 to the
Sound processor
a.Insert the Receiver DT10 into the three
pin socket on the iConnect Adaptor.
b.W hile keeping the sound processor
and the Comfort Digisystem turned
off, attach the iConnect Adaptor to
the Sound processor, as shown in
the picture to the right.
c.Turn on the Comfort Digisystem
Microphone and the Sound processor
in that order.
d.Gently turn the volume control back to the same position noted in
Step 2a. Note. There is no need to
turn on the Receiver DT10. It will automatically turn on after
a few seconds and a beep may be heard by the user.
e.Perform a functional listening evaluation as follows:
• Turn off the Receiver DT10. Conduct a listening test in quiet,
at a Speaker-to-Listener distance of 1 metre.
• Turn on the Receiver DT10. Repeat the same listening test in
quiet with Sound processor set to the Aux Only Option and at
a Speaker-to-Listener distance of several metres this time.
• T he user’s speech recognition performance should be
almost the same in both cases.
• If not, use the Programmer DT05 to optimize the output level
of the Receiver DT10 until almost the same performance is
obtained.
• If required, a functional listening check can be conducted in
noise with the sound processor set to the Audio Mixing ratio
30/70, to obtain an acceptable performance in noise.
How to fit Receiver DH10
to Advanced Bionics Auria
1
4
Required parts
1. The Receiver DH10
2. The Auria sound processor
3. Direct Connect Earhook
4. Auria External T-Coil
2
3
Before fitting the Receiver DH10 to the Sound Processor
Please ensure that each step below is carefully followed before making any attempt
to fit the Receiver DH10 to the CI-processor
1. Preparing the Comfort Digisystem
a.Choose a free radio transmission channel.
b.P air the Receiver DH10 with the intended Comfort Digisystem.
c.Connect a headphone to the Receiver DH10 and ensure that
the Comfort Digisystem is functioning appropriately.
d.Turn of the Receiver DH10 and hang its neck loop around
the neck of the user
2.Preparing the Sound processor
a.Ensure that the Sound processor is programmed for the
Audio Mixing ratio 50/50
b.Use the programme switch of the Sound processor and select
the intended programme for Audio Mixing ratio 50/50.
c.Take note of the position of the volume control and turn it
counter-clockwise to the end position in order to reduce
the volume to minimum.
d.Turn off the Sound processor.
3.Fitting the Receiver DH10 to the Sound processor
a.Attach the External T-Coil to the Direct Connect Earhook.
b.Connect the Direct Connect Earhook to the Sound processor.
c.Turn on the Comfort Digisystem Microphone, The Receiver DH10
and the Sound processor in that order.
d.Gently turn the volume control back to the noted position in Step 2c.
f.Perform a functional listening evaluation as follows:
• Turn off the Receiver DH10. Conduct a listening test in quiet,
at a Speaker-to-Listener distance of 1 metre.
• Turn on the Receiver DH10. Repeat the same listening test in
quiet with Sound processor set to the Aux Only Option and at
a Speaker-to-Listener distance of several metres this time.
• T he user’s speech recognition performance should be almost the
same in the both cases.
• If not, use the Volume buttons on the DH10 to optimize the output
level of the Receiver DH10 until almost the same performance is
obtained.
• If required, a functional listening check can be conducted in
noise with the sound processor set to the Audio Mixing ratio
30/70, to obtain an acceptable performance in noise.
9
How to fit Receiver DH10
to Advanced Bionics Harmony
2
1
Required parts
1. The Receiver DH10
2. The Harmony Sound processor
Before fitting the Receiver DT10 to the sound processor
Please ensure that each step below is carefully followed before making any attempt
to fit the Receiver DH10 to the sound processor.
1. Preparing the Comfort Digisystem
a.Choose a free radio transmission channel.
b.P air the Receiver DH10 with the intended Comfort Digisystem.
c.Connect a headphone to the Receiver DH10 and ensure that the
Comfort Digisystem is functioning appropriately.
d.Turn of the Receiver DH10 and hang its neck loop around the
neck of the user.
2.Preparing the Sound processor
a.Ensure that the T-Coil Feature is enabled in the sound processor.
b.Take note of the position of the volume control and turn it
counter-clockwise to the end position in order to reduce the
volume to minimum.
c.Turn off the Sound processor.
10
3.Fitting the Receiver DH10 to the Sound processor
a.Turn on the Comfort Digisystem Microphone, The Receiver DH10
and the Sound processor in that order.
b.Gently turn the volume control back to the noted position in Step 2b.
c.Perform a functional listening evaluation as follows:
• Turn off the Receiver DH10. Conduct a listening test in quiet,
at a Speaker-to-Listener distance of 1 metre.
• Turn on the Receiver DH10. Repeat the same listening test in
quiet with Sound processor set to the programme intended for
using built in T-coil and at a Speaker-to-Listener distance
of several metres this time.
• T he user’s speech recognition performance should be almost the
same in the both cases.
• If not, use the Volume buttons on the DH10 to optimize the output
level of the Receiver DH10 until almost the same performance is
obtained.
• If required, a functional listening check can be conducted in
noise with the sound processor set to the Audio Mixing ratio
30/70, to obtain an acceptable performance in noise.
How to fit Receiver DT10 to
Cochlear Nucleus CP800 Series
Cochlear Nucleus® CP810 is built in three different versions: A, B and C. Only
Cochlear Nucleus® CP810 Version C supports the use of the Receiver DT10.
The version of the CP810 is identified by the last letter in the serial number
on the sound processor. The serial number is located in the curved inside
edge of the CP810. See the pictures on the right hand side. Cochlear
Nucleus® CP810 versions A and B only support the Receiver DH10.
Required Parts
1. The Receiver DT10
2. Euro Accessory Adaptor
3. The Programmer DT05
4. Monitor Headphones for Cochlear
Nucleus®CP800 series
2
3
4
1
Before fitting the Receiver DT10 to Cochlear
Recommended channel list
Please ensure that each step below is carefully followed
before making any attempt to connect the Receiver DT10
to the Sound processor.
To avoid radio interference, the following radio transmission channels
are recommended for use with the Receiver DT10 and CP810 ver. C in
Europe. Open channels: O1, O2 and O3.
B Band: B1, B3, B5, B7 – B11, B17 – B23.
F Band: F2 – F5, F7 – F9, F13 – F15.
Nucleus® 810 Ver. C
1.Preparing the Receiver DT10
Please use the Programmer DT05 in order
to change the settings of the Receiver DT10
in this step.
a.Attach the Receiver DT10 into the
Programmer DT05
b.Choose an appropriate radio
transmission channel in accordance to
the “Recommended Channel List” above
and pair the Receiver DT10 with the
intended Comfort Digisystem
Transmitter.
c.S et a check mark for the “R+M enable”
d.S et the output level for R+M to +4 dB
e.S et the check mark for the “Tone
indicator”
f.Set a check mark for the “Auto Sleep”
g.S et a check mark for “Pairing”
h.Uncheck “Always On”
i.Set the Receiver DT10 to the pairing
mode
j.Send all settings to the Receiver DT10
by selecting “Send all” → “Continue”
k.Ensure that the Comfort Digisystem is
functioning properly by listening with
headphones through the Programmer
DT05 while someone speaks into the
Comfort Digisystem Microphone. See
the picture to the right.
2.Preparing the Sound processor
Ensure that the processor is programmed with the following
settings for the intended programme used with the Receiver DT10:
a.Mixing Ratio = 1:1
b.Auto Telecoil = Off
c.SmartSound Environment = ASC+ADRO (Use default Everyday
Environment setting the default sensitivity setting of 12).
3.Connecting the Receiver DT10 to Cochlear Nucleus® 810 Ver. C
a.Insert the Receiver DT10 into the Euro Accessory Adaptor. Insert
the Euro Accessory Adaptor into the sound processor´s
accessory socket while the sound processor is still switched on.
b.CP810 will automatically detect the Receiver DT10 and the
Receiver DT10 switches on after a few seconds.
c.Perform a functional listening evaluation as follows:
• Turn off the Receiver DT10. Conduct a listening test in quiet,
at a Speaker-to-Listener distance of 1 metre.
• Turn on the Receiver DT10. Using the Remote Assistant CR110
change the Mixing Ratio to 6:0. Repeat the same listening test
in quiet, at a Speaker-to-Listener distance of several metres
this time.
• T he user’s speech recognition performance should be
almost the same in the both cases.
• If not, use the Programmer DT05 to optimize the output level of
the Receiver DT10 until almost the same performance is obtained.
• Note: A mixing ratio of 1:1 is recommended for a good
compromise between the DT10 input and the sound processor
microphone input in quiet. A mixing ratio of 2:1 or 3:1 can give
a good speech recognition performance in noise.
11
How to fit Receiver DH10 to
Cochlear Nucleus® CP810 ver. A, B, C
through telecoil
1
2
Required parts
1. The Receiver DH10
2. The Cochlear Nucleus® CP810
Before fitting the Receiver DT10 to Cochlear Nucleus® CP810
Please ensure that each step below is carefully followed before making any attempt
to fit the receiver DH10 to the CI-processor.
1. Preparing the Comfort Digiystem
a.Choose a free radio transmission channel.
b.P air the Receiver DH10 with the intended Comfort Digisystem.
c.Ensure that the Comfort Digisystem is functioning properly by
listening with headphones through the Receiver DH10 while
someone speaks into the Comfort Digisystem Microphone.
d.Hang the neck loop of the Receiver DH10 around the neck of
the user.
2.Preparing the Cochlear Nucleus® CP810
Ensure that the processor is programmed with the following settings:
a.Telecoil = On
b.Auto Telecoil = Off
c.Mixing ratio = 1:1
d.SmartSound Environment = ASC+ADRO (Use default Everyday
Environment setting the default sensitivity setting of 12).
12
3.Fitting the Receiver DH10 to Cochlear Nucleus® CP810
a.S elect the Telecoil programme manually on the sound processor
and confirm that the user can hear the transmitted signal from
the Comfort Digisytem Microphone.
b.Perform a functional listening evaluation as follows:
• Turn off the Receiver DH10. Conduct a listening test in quiet,
at a Speaker-to-Listener distance of 1 metre.
• Turn on the Receiver DH10. Using the Remote Assistant CR110
change the Mixing Ratio to 6:0. Repeat the same listening test in
quiet, at a Speaker-to-Listener distance of several metres this
time. The user´s speech recognition performance should be
almost the same in the both cases.
• If not, use the Volume buttons on the DH10 to optimize the output
level of the Receiver DH10 until almost the same performance is
obtained.
• Note: A mixing ratio of 1:1 is recommended for a good
compromise between the DT10 input and the sound processor
microphone input in quiet. A mixing ratio of 2:1 or 3:1 can give
a good speech recognition performance in noise.
How to fit Receiver DH10 to
Cochlear Nucleus® CP810 ver. A, B, C
through the Accessory Socket
1
2
3
Required parts
1. The Receiver DH10
2. The Cochlear Nucleus® CP810
3. Cochlear Personal Audio Cable Before fitting the Receiver DT10 to Cochlear Nucleus® CP810
Please ensure that each step below is carefully followed before making any attempt
to fit the receiver DH10 to the sound processor.
1. Preparing the Comfort Digiystem
a.Choose a free radio transmission channel.
b.P air the Receiver DH10 with the intended Comfort Digisystem.
c.Ensure that the Comfort Digisystem is functioning properly by
listening with headphones through the Receiver DH10 while
someone speaks into the Comfort Digisystem Microphone.
d.W hile being used, the Receiver DH10 can be kept in one of the
user’s pockets.
2.Preparing the Sound processor
Ensure that the sound processor is programmed with the
following settings:
a.Auto Telecoil = Off
b.Mixing ratio = 1:1
c.SmartSound Environment = ASC+ADRO (Use default Everyday
Environment setting the default sensitivity setting of 12).
3.Fitting the Receiver DH10 to the Sound Processor
a.Insert the processor end of the
Personal Audio Cable into the
accessory socket of the sound
processor and plug the 3.5 mm
end into the DH10 Headphones
socket . The sound processor will
automatically detect the Receiver
DH10.
b.Confirm that the user can hear the transmitted signal from the
Comfort Digisytem Microphone.
c.Perform a functional listening evaluation as follows:
• Turn off the Receiver DH10. Conduct a listening test in quiet,
at a Speaker-to-Listener distance of 1 metre.
• Turn on the Receiver DH10. Using the Remote Assistant CR110
change the Mixing Ratio to 6:0. Repeat the same listening test in
quiet, at a Speaker-to-Listener distance of several metres this
time. The user’s speech recognition performance should be
almost the same in the both cases.
• If not, use the Volume buttons on the DH10 to optimize the output
level of the Receiver DH10 until almost the same performance is
obtained.
• Note: A mixing ratio of 1:1 is recommended for a good
compromise between the DT10 input and the sound processor
microphone input in quiet. A mixing ratio of 2:1 or 3:1 can give
a good speech recognition performance in noise.
13
How to fit Receiver DT10 to
MED-EL OPUS 2 sound processor
Required parts
1. The Receiver DT10
2. The OPUS 2 sound processor
3. OPUS2 FM battery pack cover
4. FineTuner™ Remote Control
5. The Programmer DT05
The Receiver DT10 can be connected directly
to the OPUS 2 FM battery pack cover as
shown in the picture on the right.
2
5
4
3
1
Before fitting the Receiver DT10 to MED-EL OPUS 2
Please ensure that each step below is carefully followed before making any attempt to connect the
Receiver DT10 to the Sound processor. Note: No HA Scan of the OPUS2 is required. All radio transmission
channels within 850,000 – 872,000 MHz may be used when fitting the Receiver DT10 to the OPUS 2.
1. Preparing the Comfort Digisystem
Please use the Programmer DT05 in order
to change the settings of the Receiver DT10
in this step.
a.Attach the Receiver DT10 into the
Programmer DT05.
b.Choose an appropriate radio transmission
channel and pair the Receiver DT10 with
the intended Comfort Digisystem
Microphone.
c.S et a check mark for the “R enable”
d.S et the output level for R to 0 dB
e.S et a check mark for the “R+M enable”
f.Set the output level for R+M to 0 dB
g.S et a check mark for the “Tone indicator”
h.Uncheck “Auto Sleep”. Note: Please
recommend that the user turns off the
Receiver DT10 when the transmitter is
switched off in order to reduce battery
consumption.
i.Set a check mark for “Pairing”
j.Uncheck “Always On”
k.S et the Receiver DT10 to the pairing mode
l.Send all settings to the Receiver DT10 by
selecting “Send all” → “Continue”
m.Ensure that the Comfort Digisystem is
functioning properly by listening with
headphones through the Programmer
DT05 while someone speaks into the
Comfort Digisystem Microphone.See
the picture to the right.
14
2.Preparing the Sound processor
a.Turn off the Speech Processor.
b.Replace the standard battery cover with the OPUS2 FM
battery pack cover.
c.Insert the Receiver DT10 into the bottom of the FM
battery pack cover.
3.Connecting the Receiver DT10 to MED-El OPUS 2
a.Turn on the sound processor
b.T he sound processor will automatically detect the Receiver DT10
and it turns on after a few seconds.
c.Perform a functional listening evaluation as follows:
• Turn off the Receiver DT10. Conduct a listening test in quiet, at a
Speaker-to-Listener distance of 1 metre.
• Turn on the Receiver DT10. It automatically turns on in the R-only
mode. Repeat the same listening test in quiet, at a Speaker-toListener distance of several metres this time. The user’s speech
recognition performance should be almost the same in both cases.
• If not, use the Programmer DT05 to optimize the output level of
the Receiver DT10 until almost the same performance is
obtained.
• Note: The R+M mode is recommended for use in quiet. The R
mode provides the user with a good speech recognition
performance in noise.
How to fit Receiver DH10
to MED-EL OPUS 2
1
Required parts
1. The Receiver DH10
2. The MED-EL OPUS 2
3. FineTuner™ Remote Control
3
2
1. Preparing the Comfort Digiystem
a.Choose a free radio transmission channel.
b.P air the Receiver DH10 with the intended Comfort Digisystem
Microphone.
c.Ensure that the Comfort Digisystem is functioning properly by
listening with headphones through the Receiver DH10 while
someone speaks into the Comfort Digisystem Microphone.
d.Turn off the Receiver DH10 and hang its neck loop around the
neck of the user.
2.Preparing the MED-EL OPUS 2
Select Telecoil using the FineTuner™
Remote Control.
3.Fitting the Receiver DH10 to the
MED-EL OPUS2
a.Turn on the Comfort Digisystem and
confirm that the user can hear the
transmitted signal from the Comfort
Digisytem Microphone.
b.Perform a functional listening evaluation
as follows:
• S elect the M-mode on the sound
processor using the FineTuner™ Remote
Control and conduct a listening test in
quiet, at a Speaker-to-Listener distance
of 1 metre.
• S elect the T-mode on the sound
processor using the FineTuner™ Remote
Control and conduct a listening test in
quiet, at a Speaker-to-Listener distance
of several metres this time. The user´s
speech recognition performance should
be almost the same in both cases.
• If not, use the Volume buttons on the
DH10 to optimize the output level of the
Receiver DH10 until almost the same
performance is obtained.
• N
ote: MT-mode provides a good
compromise between the DH10 input
and the sound processor microphone
input in quiet. T-mode is recommended
to be used in noise.
15
How to fit Receiver DT10 to
MED-EL DUETT 1/ DUETT2/
OPUS1/ TEMPO+
Required parts
1. The Receiver DT10
2. The MED-EL Sound Processor with Angled Battery Pack
3. Oticon Amigo FM-CI adaptor
4. Adaptor Cord CI-40
5. The FineTuner™ Remote Control
6. The Programmer DT05
5
The Receiver DT10 is connected to these sound processors
through an Oticon Amigo FM-CI Adaptor. See the picture on
the right.
1
4
2
6
4
Before fitting the Receiver DT10 to MED-EL DUETT 1/
DUETT2/OPUS!/TEMPO*
Please ensure that each step below is carefully followed before
making any attempt to connect the Receiver DT10 to the Sound
processors. Note: No HA Scanning of these processors is required.
All radio transmission channels within 850,000 – 872,000 MHz can
be used when fitting the Receiver DT10 to these sound processors.
For Europe.
n.Detach the Receiver DT10 from the Programmer DT05 and connect
it into the Oticon Amigo FM-CI adaptor.
o.Open the battery compartment of the Oticon Amigo FM-CI adaptor.
Insert a P13 Zinc Air battery in the battery compartment and close it.
p.Connect the Adaptor cord CI-40 to the Oticon Amigo FM-CI adaptor.
q.Turn the Gain Control of the Oticon Amigo FM-CI adaptor to the “1”
position.
2.Preparing the Sound Processor
a.Turn off the Sound Processor
b.Open the cover of the Angled Battery Pack by pulling it straight
back and lifting upwards
c.C arefully insert the Adaptor cord CI-40 into the CS 44 socket on
the sound processor and close the cover
d.Take note of the position of the sound processor sensitivity control
and turn it to the halfway point. The red dot on the control dial
should be at approximately 2 or 3 o´clock
1.Preparing the Comfort Digisystem and the
Oticon Amigo FM-CI adaptor
Please use the Programmer DT05 in order to
change the settings of the Receiver DT10 in
this step.
a.Attach the Receiver DT10 into the
Programmer DT05.
b.Choose an appropriate radio transmission
channel and pair the Receiver DT10 with the
intended Comfort Digisystem Microphone.
c.S et a check mark for the “R enable”
d.S et the output level for R to 0 dB
e.S et a check mark for the “R+M enable”
f.Set the output level for R+M to 0 dB
g.S et a check mark for the “Tone indicator”
h.Uncheck “Auto Sleep”. Note: Please
recommend the user to turn the Receiver
DT10 off when the Comfort Digisystem is
switched off in order to reduce the battery
consumption.
i.Set a check mark for “Pairing”
j.Uncheck “Always On”
k.S et the Receiver DT10 to the pairing mode
l.Send all settings to the receiver DT10 by
selecting
“Send all” → “Continue”
m. E
nsure that the Comfort Digisystem is
functioning properly by listening with
headphones through the Programmer
DT05 while someone speaks into the
Comfort Digisystem Microphone. See
the picture to the right.
16
N
O
Q
P
3.Fitting the Receiver DT10 to the Sound processor and
performing functional listening evaluation
a.Turn on the sound processor.
b.Gently turn the sound processor sensitivity control back to the
same position noted in step 2d.
c.Gradually increase the Gain Control of the Oticon Amigo FM-CI
adaptor until a comfortable volume level is achieved.
d.Perform a functional listening evaluation as follows:
• Turn off the Receiver DT10. Conduct a listening test in quiet, at a
Speaker-to-Listener distance of 1 metre.
• Turn on the Receiver DT10. It automatically turns on in the R-only
mode. Repeat the same listening test in quiet, at a Speaker-toListener distance of several metres this time. The user´s speech
recognition performance should be almost the same in both cases.
• If not, use either the Programmer DT05 or the Gain Control of the
Oticon Amigo FM-CI adaptor to optimize the output level of the
FM-CI adaptor until almost the same performance is obtained.
• Note: The R+M mode is recommended for use in quiet. The R mode
provides the user with a good speech recognition performance in
noise.
How to fit Receiver DH10
to MED-EL DUET 2
Required parts
• The Receiver DH10
• The MED-EL DUET 2
• FineTuner™ Remote Control
5
4
2
1. Preparing the Comfort Digisystem
a.Choose an appropriate radio transmission channel.
b.P air the Receiver DH10 with the intended Comfort Digisystem
Microphone.
c.Ensure that the Comfort Digisystem is functioning properly by
listening with headphones through the Receiver DH10 while
someone speaks into the Comfort Digisystem Microphone.
d.Turn off the Receiver DH10 and hang its neck loop around the
neck of the user.
2.Preparing the MED-EL DUET 2
Select Telecoil using the FineTuner™
Remote Control.
3. Fitting the Receiver DH10 to the
MED-EL DUET2 and performing
functional listening evaluation
a.Turn on the Receiver DH10 and confirm
that the user can hear the transmitted
signal from the Comfort Digisytem
Microphone.
b.Perform a functional listening evaluation
as follows:
• S elect the M-mode on the sound
processor using the FineTuner™ Remote
Control and conduct a listening test in
quiet, at a Speaker-to-Listener distance
of 1 metre.
• S elect the T-mode on the sound
processor using the FineTuner™ Remote
Control and conduct a listening test in
quiet, at a Speaker-to-Listener distance
of several metres this time. The user´s
speech recognition performance should
be almost the same in both cases.
• If not, use the Volume buttons on the
DH10 to optimize the output level of the
Receiver DH10 until almost the same
performance is obtained.
• Note: MT-mode provides a good
compromise between the DH10 input and
the sound processor microphone input in
quiet. T-mode is recommended in noise.
17
How to fit Receiver DH10 to
MED-EL TEMPO+ and OPUS 1
Required parts
1. The Receiver DH10
2. MED-EL TEMPO + / OPUS 1
3. Angled Battery Pack
4. For FM use T+ AudioExt (Red)
5. For FM + M use T+ AudioMix (Yellow)
1
2
4
3
1. Preparing the Comfort Digisystem
a.Choose a free radio transmission channel.
b.P air the Receiver DH10 with the intended Comfort Digisystem
Microphone.
c.Ensure that the Comfort Digisystem is functioning properly by
listening with headphones through the Receiver DH10 while
someone speaks into the Comfort Digisystem Microphone.
d.Decrease the volume on the Receiver DH10 to the minimum level
and turn it off. Insert the 3.5 mm end of the intended audio cable
into the Receiver DH10 headphones socket. The audio cable type
can be selected depending on the type of the listening
environment. The Non-mixing cable (T+ AudioExt (Red)) generally
is used in noise and the Mixing cable (T+ AudioMix (Yellow)) is
used in quiet.
Fitting the Receiver DH10 to the Sound Processor and performing
functional listening evaluation when using the T+ AudioExt cable
(Red)
a.Turn on the Sound Processor and gently turn the sound
processor sensitivity control back to the same position noted in
step 2d.
b.Gradually increase the volume of the Receiver DH10 until a
comfortable volume is achieved.
c.Conduct a functional listening test in quiet, at a Speaker-toListener distance of several metres. The user should show a
good speech recognition performance in this condition. If not,
use the volume buttons on the Receiver DH10 to optimize the
output level of the Receiver DH10 until almost the same
performance is obtained.
2.Preparing the Sound processor
a.Turn off the Sound Processor
b.Open the cover of the Angled Battery Pack by pulling it straight
back and lifting upwards
c.C arefully insert the audio cable into the CS 44 socket on the
sound processor and close the cover.
d.Take note of the position of the sound processor sensitivity
control and turn it to the halfway point. The red dot on the
control dial should be at approximately 2 or 3 o´clock.
Fitting the Receiver DH10 to the Sound Processor and performing
functional listening evaluation when using the T+ AudioMix cable
(Yellow)
a.Turn on the Sound Processor and gently turn the sound
processor sensitivity control back to the same position noted in
step 2d.
b.Make sure that the output level of the Receiver DH10 is set to the
minimum and conduct a listening test in quiet, at a Speaker-toListener distance of 1 metre.
c.Gradually increase the volume of the Receiver DT10 until a
comfortable volume level is achieved. Conduct a listening test in
quiet, at a Speaker-to-Listener of several metres this time.
d.T he speech recognition performance in these two conditions
should be almost the same.
e.If not, use the volume buttons on the Receiver DH10 to optimize
the output level of the Receiver DH10 until almost the same
performance is obtained.
18
5
How to fit Receiver DH10
to MED-EL DUET
Required parts
1. The Receiver DH10
2. MED-EL DUET
3. Audio mixing cable T+ AudioMix (Yellow)
1. Preparing the Comfort Digisystem
a.Choose an appropriate radio transmission channel.
b.P air the Receiver DH10 with the intended Comfort Digisystem
Microphone.
c.Ensure that the Comfort Digisystem is functioning properly by
listening with headphones through the Receiver DH10 while
someone speaks into the Comfort Digisystem Microphone.
d.Decrease the volume on the Receiver DH10 to the minimum level
and turn it off. Insert the 3.5 mm end of the audio Mixing cable
(T+ AudioMix (Yellow)) into the Receiver DH10 headphones socket
2.Preparing the Sound processor
a.Turn off the Sound Processor (picture)
b.Open the battery cover by pulling it straight back and lifting
upwards (picture)
c.C arefully insert the audio cable into the CS 44 socket on the
sound processor and close the cover.
d.Take note of the position of the sound processor sensitivity
control and turn it to the halfway point. The red dot on the
control dial should be at approximately 2 or 3 o´clock (picture)
1
2
3
3.Fitting the Receiver DH10 to the Sound Processor and
performing functional listening evaluation
a.Turn on the Sound Processor and gently turn the sound
processor sensitivity control back to the same position noted
in step 2d.
b.Ensure that the output level of the Receiver DH10 is set to the
minimum and conduct a listening test in quiet, at a Speaker-toListener distance of 1 metre.
c.Gradually increase the volume of the Receiver DT10 until a
comfortable volume level is achieved. Conduct a listening test
in quiet, at a Speaker-to-Listener of several metres this time.
d.T he speech recognition performance in these two conditions
should be almost the same.
e.If not, use the volume buttons on the Receiver DH10 to optimize
the output level of the Receiver DH10 until almost the same
performance is obtained.
19
120229
Hearing loss should not stop anyone from sharing thoughts and ideas with others.
Since 1994, Swedish company Comfort Audio has developed and manufactured products for
people with hearing loss. With leading technology and innovative solutions, we have a mission
to make people with hearing loss feel comfortable interacting in all situations through all
stages of life.
We are dedicated, curious, highly technically motivated and are driven by passion and joy. This
has made us one of the leading companies in hearing product technology. Our products have
been developed for working life, school, public places and private life. The needs of the
individual are always in focus and we have a genuine desire to improve the quality of life for
people with a hearing loss.
Comfort Audio AB | Box 154 | SE-301 05 Halmstad | Tel: +46 35 260 16 00
info@comfortaudio.com | www.comfortaudio.com