Nice Article on Hearing Aid Technology
57
1 . Using Bluetooth® Connectivity to Enhance Hearing Aid Benefit Carol Meyers, Au.D. and Gabrielle Filips, Au.D. Siemens Hearing Instruments
-
Upload
anil-takalikar -
Category
Documents
-
view
31 -
download
0
description
Nice Article on Hearing Aid Technology
Transcript of Nice Article on Hearing Aid Technology
1 .
Using Bluetooth® Connectivity to Enhance Hearing Aid BenefitCarol Meyers, Au.D. and Gabrielle Filips, Au.D.
Siemens Hearing Instruments
2 .
Bluetooth ®
What is Bluetooth?
What are the benefits & limitations?
How does Siemens Hearing use this technology?
The Tek® experience - listen for yourself!
3
Bluetooth
Bluetooth is an industrial specification for wireless personal area networks (PANs). Technology first introduced in Sweden in the 1990’s
The Bluetooth name originally came from the Danish Viking and King, Harald Blåtand whose name translates to Bluetooth in English. He is known for uniting Denmark & Norway
Bluetooth provides a way to connect and exchange information between devices such as mobile phones, laptops, personal computers, printers, digital cameras & video game consoles over a secure, globally unlicensed short-range radio frequency ~ 30 feet for class 2 devices
The Bluetooth® word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by Siemens AG is under license. Other trademarks and trade names are those of their respective owners.
Presenter
Presentation Notes
The name "Bluetooth" is from the 10th century Danish King Harald Blatand - or Harold Bluetooth in English. King Blatand was instrumental in uniting warring factions in parts of what are now Norway, Sweden, and Denmark - just as Bluetooth technology is designed to allow collaboration between differing industries such as the computing, mobile phone, and automotive markets. The following table compares the available Bluetooth power classes:�Class�Maximum Power�Operating Range��Class 1�100mW (20dBm)�100 meters��Class 2�2.5mW (4dBm)�10 meters��Class 3�1mW (0dBm)�1 meter������ �The following table compares the available Bluetooth power classes:�����Class�Maximum Power�Operating Range��Class 1�100mW (20dBm)�100 meters��Class 2�2.5mW (4dBm)�10 meters��Class 3�1mW (0dBm)�1 meter������ �
4
Bluetooth
Bluetooth is a standard and communications protocol primarilydesigned for low power consumption, with a short range based on lowcost transceiver microchips in each device
Bluetooth is radio-based (digital FM) using the 2.4 GHz radio spectrum
Pairing of communicating Bluetooth devices is always required & thetransmission is secure due to encryption. A Personal Area Network(PAN) is created with the pairing
Bluetooth devices use a radio communications system, so they do nothave to be in line of sight of each other
5
Bluetooth benefits
Benefits
WirelessEliminates wires/connection cablesEasy to set up and improves safety and look of setupTurns hearing instruments into a wireless hands-free headset
Low interference
Doesn’t need to be line of sight (like infrared technology)
Inexpensive technologyLess than $5 for the chip
Presenter
Presentation Notes
BT uses frequency hopping and changes frequencies 1600 times per second ensuring little interference from WiFi for example and also making the transmission secure. A pseudorandom sequence is used known only to transmitter and receiver (hence pairing of devices). For eavesdropping to occur the eavesdropper would have to know the pseudorandom sequence of many different frequencies—so very difficult to do.
6
Bluetooth limitations
Limitations
Power consumptionConsidered low for some applications but in hearing aid industryconsidered to be highDraws approximately 8 mA from a 1.8 volt power source*Hearing instrument example: Super Power BTE draws approximately 2 mA from a 1.3 volt power source (675 battery)
Size of componentsBlueCore 7 chip approximately 4 x 4 mm; similar in size to typical hearing instrument chip*Antenna is required to pick up signal
Size of antenna dictates efficiencyTypical size may be 12.8 x 3.6 x 3.3 mm (.51 inch x .15 inch x .13 inch)
*J. Yanz and D. Preves, The Hearing Journal, 2007
Presenter
Presentation Notes
BlueCore 7 is the latest BlueTooth chip
7
Bluetooth limitations
Limitations
High transmission delay> 100 ms (typically ~200 ms)Degraded lip synchrony if audio paired to visual stimulus (non-issue with cell phones)
Limited audio signal bandwidth: 7.5 K Hz
*J. Yanz and D. Preves, The Hearing Journal, 2007
Presenter
Presentation Notes
BlueCore 7 is the latest BlueTooth chip
8
Bluetooth limitations with hearing aids & Siemens Solutions
Limited audio signal bandwidth: 7.5 KHzSoundBrilliance in high tech hearing instruments extendbandwidth to 12 KHz
High transmission delay: >100 ms (typically ~200ms)degraded lip synchrony (TV)degraded sound quality for open fittings
Tek Transmitter with proprietary Bluetooth implementationusing much shorter delays already paired with Tek Connect
High power consumption and large size of components Bluetooth implemented in remote control (Tek Connect)e2e wireless 2.0 for transmission from Tek Connect to hearinginstrument (magnetic transmission)
Presenter
Presentation Notes
Tek wireless enhancement mitigates each of these limitations and provides a superior solution for patients seeking wireless connectivity to their world. Proprietary Bluetooth implementation offers delay of only 65 ms!
9
Tek Wireless Enhancement System
10
Programming with CONNEXX 6.4
11
Life fitting range for mild to moderate hearing loss
Life output/gain124/40 dB SPL
Presenter
Presentation Notes
Life covers a HL from mild to moderate. With the LifeTube, it has a gain of 40dB with an OSPL of 124dB; with the earhook we can achieve a gain of 51dB.
12
Siemens Life 700
16 channel DSP
e2e wireless 2.0
Multichannel AGC-I & Multichannel AGC-O
Environmental Classification System
Speech & Noise Management System: 16 channels, 7 steps + OFF
SoundSmoothing® (3 settings + off)
Multichannel adaptive directional microphone system
13
Siemens Life 700
TruEar™
SoundBrilliance™
FeedbackBlocker™
SoundLearning®
ProPocket™, ePen® & Tek® compatible
Moisture resistant technology
14
Let’s start programming the hearinginstruments and the Tek Connect
with CONNEXX 6.4
15
Tek Wireless Enhancement System
16
Tek Wireless Enhancement System
Tek now comes in new, smaller packaging
Compatible with all e2e wireless 2.0 products:701, 501 & 301 700, 500 & 300
Car charging adapter for Tek is an optional accessory
Presenter
Presentation Notes
Note: Car charger is a separate accessory like Tek holster. Not part of the initial package.
17
Tek Connect & Tek Transmitter are pre-paired and share the same serial #
Serial #s are located on the back of the Tek Transmitter & inside the battery compartment of the Tek Connect
Tek Connect
Tek Transmitter
Tek Wireless Enhancement
Presenter
Presentation Notes
18
Tek + e2e wireless 2.0
e2e wireless 2.0
Short range magnetic transmission system
New technology for optimum stereo sound
Operates at 3.28 MHz, in accordance with the ITU (International Telecommunication Union) which recommends 3.155 MHz to 3.400 MHz operating range for low power wireless hearinginstruments
Presenter
Presentation Notes
e2e wireless was the first generation (and first in the industry) to allow synchronization of signal processing information and controls. e2e wireless 2.0 is the next generation of wireless communication, which not only allows high level synchronization of signal processing information and controls in an even faster manner, it also allows hearing instruments to be wirelessly compatible with Bluetooth enabled and other devices for the purposes of streaming complete audio signals in stereo (such as mobile phone, TV, stereo . . . ). ITU is the leading United Nations agency for information and communication technologies. As the global focal point for governments and the private sector, ITU's role in helping the world communicate spans 3 core sectors: radiocommunication, standardization and development. ITU also organizes TELECOM events and was the lead organizing agency of the World Summit on the Information Society. ITU is based in Geneva, Switzerland, and its membership includes 191 Member States and more than 700 Sector Members and Associates.
19
Tek Wireless Enhancement
Tek Connect
Display
Presenter
Presentation Notes
Here is what the Tek Connect remote control looks like.
20
Tek Wireless Enhancement
Tek Connect
Display
Direct access to programs (P1–P5)
Presenter
Presentation Notes
Here is what the Tek Connect remote control looks like.
21
Tek Wireless Enhancement
Tek Connect
Display
Direct access to programs (P1–P5)
Volume + / -
Presenter
Presentation Notes
Here is what the Tek Connect remote control looks like.
22
Tek Wireless Enhancement
Tek Connect
Display
Direct access to programs (P1–P5)
Volume + / -
Accept / End phone calls On / Off Tek Connect
Presenter
Presentation Notes
Here is what the Tek Connect remote control looks like.
23
Tek Wireless Enhancement
Tek Connect
Display
Direct access to programs (P1–P5)
Volume + / -
Accept/ End phone calls On / Off Tek Connect
Microphone for phone application
Presenter
Presentation Notes
Here is what the Tek Connect remote control looks like.
24
Tek Wireless Enhancement
Tek Connect
Presenter
Presentation Notes
As you can see, Tek Connect is able to carry out all the functions of a remote control, even assisting in the learning features of our high-end hearing aids as well as the functions of the bluetooth receiver and transmitter. In competitive products, the remote control has either very limited function or an additional device is necessary for the bluetooth transmission and receipt. In addition, competitive devices (remote control or otherwise) must be worn around the neck, as the lanyard also functions as the antenna for the system. This is not the case with Tek Connect – everything is enclosed within the remote control and no other devices are needed, and Tek Connect does not need to be worn around the neck. An optional lanyard is available if patients would like to use this for convenience while on the phone to allow hands-free operation (remember the patient is also speaking into the microphone on Tek Connect while on the phone, so they need to keep it closer to their head than while they are using it for other purposes).
25
Tek Wireless Enhancement
Lock switch: Locks the Tek ConnectTek Connect
Presenter
Presentation Notes
As you can see, Tek Connect is able to carry out all the functions of a remote control, even assisting in the learning features of our high-end hearing aids as well as the functions of the bluetooth receiver and transmitter. In competitive products, the remote control has either very limited function or an additional device is necessary for the bluetooth transmission and receipt. In addition, competitive devices (remote control or otherwise) must be worn around the neck, as the lanyard also functions as the antenna for the system. This is not the case with Tek Connect – everything is enclosed within the remote control and no other devices are needed, and Tek Connect does not need to be worn around the neck. An optional lanyard is available if patients would like to use this for convenience while on the phone to allow hands-free operation (remember the patient is also speaking into the microphone on Tek Connect while on the phone, so they need to keep it closer to their head than while they are using it for other purposes).
26
Tek Wireless Enhancement
Lock switch: Locks the Tek ConnectTek Connect
Instrument power: Power down/Readout
Presenter
Presentation Notes
As you can see, Tek Connect is able to carry out all the functions of a remote control, even assisting in the learning features of our high-end hearing aids as well as the functions of the bluetooth receiver and transmitter. In competitive products, the remote control has either very limited function or an additional device is necessary for the bluetooth transmission and receipt. In addition, competitive devices (remote control or otherwise) must be worn around the neck, as the lanyard also functions as the antenna for the system. This is not the case with Tek Connect – everything is enclosed within the remote control and no other devices are needed, and Tek Connect does not need to be worn around the neck. An optional lanyard is available if patients would like to use this for convenience while on the phone to allow hands-free operation (remember the patient is also speaking into the microphone on Tek Connect while on the phone, so they need to keep it closer to their head than while they are using it for other purposes).
27
Tek Wireless Enhancement
Treble/Bass* control: Change tone
Lock switch: Locks the Tek ConnectTek Connect
Instrument power: Power down/Readout
*Bass for Nitro SP BTEs
Presenter
Presentation Notes
As you can see, Tek Connect is able to carry out all the functions of a remote control, even assisting in the learning features of our high-end hearing aids as well as the functions of the bluetooth receiver and transmitter. In competitive products, the remote control has either very limited function or an additional device is necessary for the bluetooth transmission and receipt. In addition, competitive devices (remote control or otherwise) must be worn around the neck, as the lanyard also functions as the antenna for the system. This is not the case with Tek Connect – everything is enclosed within the remote control and no other devices are needed, and Tek Connect does not need to be worn around the neck. An optional lanyard is available if patients would like to use this for convenience while on the phone to allow hands-free operation (remember the patient is also speaking into the microphone on Tek Connect while on the phone, so they need to keep it closer to their head than while they are using it for other purposes).
28
Tek Wireless Enhancement
Treble/Bass* control: Change tone
Audio input: 2.5 mm stereo connector
Lock switch: Locks the Tek ConnectTek Connect
Instrument power: Power down/Readout
*Bass for Nitro SP BTEs
Presenter
Presentation Notes
As you can see, Tek Connect is able to carry out all the functions of a remote control, even assisting in the learning features of our high-end hearing aids as well as the functions of the bluetooth receiver and transmitter. In competitive products, the remote control has either very limited function or an additional device is necessary for the bluetooth transmission and receipt. In addition, competitive devices (remote control or otherwise) must be worn around the neck, as the lanyard also functions as the antenna for the system. This is not the case with Tek Connect – everything is enclosed within the remote control and no other devices are needed, and Tek Connect does not need to be worn around the neck. An optional lanyard is available if patients would like to use this for convenience while on the phone to allow hands-free operation (remember the patient is also speaking into the microphone on Tek Connect while on the phone, so they need to keep it closer to their head than while they are using it for other purposes).
29
Tek Wireless Enhancement
Treble/Bass* control: Change tone
Audio input: 2.5mm stereo connector
Mini USB connector:connects to charger or toprogram the Tek Connect
Lock switch: Locks the Tek ConnectTek Connect
Instrument power: Power down/Readout
*Bass for Nitro SP BTEs
Presenter
Presentation Notes
As you can see, Tek Connect is able to carry out all the functions of a remote control, even assisting in the learning features of our high-end hearing aids as well as the functions of the bluetooth receiver and transmitter. In competitive products, the remote control has either very limited function or an additional device is necessary for the bluetooth transmission and receipt. In addition, competitive devices (remote control or otherwise) must be worn around the neck, as the lanyard also functions as the antenna for the system. This is not the case with Tek Connect – everything is enclosed within the remote control and no other devices are needed, and Tek Connect does not need to be worn around the neck. An optional lanyard is available if patients would like to use this for convenience while on the phone to allow hands-free operation (remember the patient is also speaking into the microphone on Tek Connect while on the phone, so they need to keep it closer to their head than while they are using it for other purposes).
31
Tek Wireless Enhancement
Tek Transmitter
Presenter
Presentation Notes
The Tek Transmitter can be connected to the TV. It comes in the Tek wireless enhancement package already paired with the Tek Connect in the box, so the patient just has to plug and play.
32
Tek Wireless Enhancement
Audio Input: 2.5 mm stereo connector
Tek Transmitter
Presenter
Presentation Notes
The Tek Transmitter can be connected to the TV. It comes in the Tek wireless enhancement package already paired with the Tek Connect in the box, so the patient just has to plug and play.
33
Tek Wireless Enhancement
Audio Input: 2.5 mm stereo connector
Tek Transmitter
Power-in
Presenter
Presentation Notes
The Tek Transmitter can be connected to the TV. It comes in the Tek wireless enhancement package already paired with the Tek Connect in the box, so the patient just has to plug and play.
34
Master volume
Tek Wireless Enhancement
Audio Input: 2.5 mm stereo connector
Tek Transmitter
Power-in
Presenter
Presentation Notes
The Tek Transmitter can be connected to the TV. It comes in the Tek wireless enhancement package already paired with the Tek Connect in the box, so the patient just has to plug and play.
35
Master volume
On / Off switch
Tek Wireless Enhancement
Audio Input: 2.5 mm stereo connector
Tek Transmitter
Power-in
Presenter
Presentation Notes
The Tek Transmitter can be connected to the TV. It comes in the Tek wireless enhancement package already paired with the Tek Connect in the box, so the patient just has to plug and play.
36
Master volume
On / Off switch
LED shows status:Blinking: Looking for
Tek ConnectConstant: Established
connection with Tek Connect
Tek Wireless Enhancement
Audio Input: 2.5 mm stereo connector
Tek Transmitter
Power-in
Presenter
Presentation Notes
The Tek Transmitter can be connected to the TV. It comes in the Tek wireless enhancement package already paired with the Tek Connect in the box, so the patient just has to plug and play.
37
Tek Wireless Enhancement
link to your TV
38
Tek Wireless Enhancement System
e2e wireless 2.0
Link to your TV (DVD, PC, Stereo)
Wired connection between the computer and Tek Transmitter
Turn on the Tek Transmitter
Switch to audio program i.e. P3
The audio signal of the video istransmitted in stereo to the hearing instruments
Tek Transmitter uses a unique Bluetooth protocol to ensure insignificant delay of the audiosignal, unlike competitive devices
39
Linking Tek to TV, DVD, PC, stereo
30 ft
3 ft
30 ft
3 ft
40
The Tek experience…
… listen for yourself with the Siemens Life 700s
Presenter
Presentation Notes
42
Listening demo
Power hearing instruments on
Start listening in P1
Tek Transmitter is connected to computer via cable
Turn Tek Transmitter “ON”Blue light on Tek Transmitter is blinking
Press P3 to access Tek programNote blue light changes from blinking to solid
Start video on computer and enjoy the Tek experience
43
Let’s explore other listening possibilities
44
Tek Wireless Enhancement
link to your MP3
Presenter
Presentation Notes
It is also possible to link to your iPod or other MP3 player or other devices by manually connecting a cord to the Tek Connect remote control.
45
e2e wireless 2.0Link to your world
Connect your external devicesdirectly to Tek Connect via acable (e.g. MP3 player)
Select your audio program i.e. P3
Enjoy the sound in stereo
A connected external device (e.g. MP3 player) has a higher priority than a device transmitting via the Tek Transmitter. An incoming phone call has the highest priority
Tek Wireless Enhancement
46
Tek Wireless Enhancement
link to your phone
Presenter
Presentation Notes
Let’s look at a few use cases where Tek can really enhance life for patients who use Tek compatible hearing instruments. First, cell phones. As we know, cell phone use has expanded into almost every group of patients – older, younger and everyone in between.
47
Tek Wireless Enhancement System
e2e wireless 2.0 Link to your Bluetooth phone
Phone rings & ring tone is generated in both instruments
Accept phone call by pressing greenbutton on Tek Connect
Wearer’s voice is transmitted viaTek Connect to the phone
The incoming call is transmittedvia Tek Connect to both instruments
End the phone call automatically, or by pressing red button
48
How to pair – Tek Connect to Bluetooth enabled phone
Press the green phone button of the Tek Connect for approximately 7 seconds. The Tek Connect will display the pairing information as shown.
Place Bluetooth enabled phone in discovery mode of Bluetooth enabled phone as indicated in phone manual.
When the Bluetooth enabled phone detects Tek Connect, the phone will display the name “Tek Connect”.
Select “Tek Connect” as the device to be paired with the phone and enter the Pin Code “0000” if asked.
The The Tek Connect and the Bluetoothenabled phone are now paired.
49
Tek Wireless Enhancement System
Phone Adapter brings Bluetooth functionality to standard landline phones
The package contains: Power supply set Telephone cable (RJ11), standard telephone plug Multi language user guide (26 languages)
Presenter
Presentation Notes
Need to confirm transmission range Need to confirm if it can only be programmed into P2 Need to confirm if more than 1 device can be used simultaneously in single household.
50
How to connect – Phone Adapter
51
How to pair – Tek Connect to Phone Adapter
52
How to use – Tek Connect with land line phone
53
Proven Benefits of Tek + Bluetooth Phone
0
1
2
3
4
5
6
Tek Only Tek + Mic
Binaural Benefit/dB SNR
Source: Ricketts & Picou, 2008
Presenter
Presentation Notes
Study conducted at Vanderbilt University shows that this binaural wireless phone transmission improves signal-to-noise ratio by up to 5.7 dB over monaural transmission (Ricketts & Picou, 2008). This translates to significantly better speech understanding on the phone – a use case for which many hearing instrument wearers are seeking improvement.
54
Bluetooth functionality in hearing aids
Study shows that binaural wireless phone transmission improves signal-to-noise ratio by up to 5.7 dB over monaural transmission.
1 dB SNR = ~8 -10% intelligibility for some listening situations
This translates to significantly better speech understanding on the phone – a use case for which many hearing instrument wearers are seeking improvement.
Proven Benefits of Tek + Bluetooth Phone
Presenter
Presentation Notes
Short range = less than 2 meters
55
Tek Wireless Enhancement System
Best wireless option for your patients!
Easy-to-use plug and play solution
Automatic operation – Tek Transmitter comes pre-paired with Tek Connect
All-in-one remote/receiver not only functions as remote, but wirelessly streams Bluetoothsignals in stereo
Offers wearers the automatic ability to learn gain, frequency & intensity preferences in every listening program!
No lanyard required & twice the streaming distance of competitors
Compatible with custom CICs!
56
Additional Tek information on public website
57
Additional Tek information on Siemens website
58
Tek video series
59
Thank You!
