Evaluation of Digital Remote Microphone Wireless Systems. Jace Wolfe
|
|
- Beverley Turner
- 8 years ago
- Views:
Transcription
1 Evaluation of Digital Remote Microphone Wireless Systems Jace Wolfe
2 The Hearts for Hearing Team Audiologists Additional Team Members Jace Wolfe, Ph.D., CCC-A Kris Hopper Kerri Brumley Pati Burns Krystal Prior, AuD Sherry Edwards Susan LaFleur Megan Miller Megan Marsh, AuD Reyna Romero Kristi Murphy Christian Boone Natalie Martella, AuD Darlene Hale Tanna Zach Sara Neumann, AuD Mila Morais, B.S., AuD Intern Elizabeth Musgrave, B.S., AuD Intern Speech-Language Pathologists Joanna T. Smith, M.S., CCC-SLP, LSLS Cert. AVT Tamara Elder, M.S. CCC-SLP, LSLS Cert. AVT Darcy Stowe, M.S. CCC-SLP, LSLS Cert. AVT Lindsay Hannah, M.S., CCC-SLP, LSLS Cert. AVT Carly Graham, M.S., CCC-SLP, LSLS Cert. AVT Casey Banks, M.S., CFY-SLP Jenn Bryngelson, M.S., CFY-SLP Tessa Hixon, M.S., CFY-SLP Jenna Reese, M.S., CFY-SLP
3 How Many Educational Audiologists in Oklahoma? 1
4 Road Map Adaptive Digital Broadband Wireless Technology Introduction Study with CI Users How about Hearing Aid Users? Classroom Audio Distribution Systems
5 A Noisy World! Living Room: 42 db A (with A.C. = 52 dba) Classroom Function: 68 dba School Auditorium: 79 dba School Cafeteria: 82 dba OKC Thunder Basketball: 100 dba The SNR in these environments is typically -5 to +5 db
6 The Evolution of Technology 1996 MicroLink - the first miniaturized ear-level FM receiver 2000 MLx - the first universal ear-level FM receiver 2003 MlxS - the first frequency-flexible FM system 2008 Dynamic FM - the first adaptive FM system
7 SNR (db) What about Dynamic FM? No FM Traditional FM: Gain is fixed Dynamic FM: Gain increases as ambient noise increases Surrounding Noise (db SPL)
8 Wolfe et al. (2009), JAAA Speech Recognition in Noise Results Advanced Bionics
9 The Evolution of Technology 1996 MicroLink - the first miniaturized ear-level FM receiver 2000 MLx - the first universal ear-level FM receiver 2003 MlxS - the first frequency-flexible FM system 2008 Dynamic FM - the first adaptive FM system 2013 Adaptive Digital Broadband Wireless System
10 Roger That! Audio signals are sampled, digitized and packaged in very short (160 μs) digital bursts of codes (packets) and broadcast several times, each at different channels between and GHz The 2.4 GHz ISM (Industry, Science and Medical) band is globally license free Frequency hopping between channels, in combination with repeated broadcast, avoids interference issues The frequency hopping is adaptive, both receivers and transmitters are searching continuously to find free channels and to avoid occupied channels Digital RF may allow for better control of the transmitted signal which may result in better performance
11 Does the Roger adaptive digital wireless system offer benefit for CI users?
12 Study Objectives Evaluate speech recognition in quiet and in noise with speech (HINT) at 85 dba at transmitter and classroom noise at 50, 55, 60, 65, 70, 75, 80 dba Evaluated 3 RF remote microphone systems: Fixed-gain FM MLxS Adaptive FM MLxi Digital RF Roger Ensure consistency of signal and a lack of interference.
13 Subjects 16 Advanced Bionics Recipients Harmony sound processors 11 bilateral Mean Age: 41.9 years (9-81) Length of CI Use: 9.7 years (8-13 years) HiRes & HiRes120 with 50/50 mixing ratio 21 Cochlear Recipients Nucleus 5 sound processors 9 bilateral Mean Age: 49.8 years (8-77) Length of CI Use: 4.7 years (6 mths - 9 years) ACE (20)/SPEAK (1) with ASC+ADRO and 1:1 mixing ratio
14 Results Advanced Bionics Recipients (n = 16) Wolfe et al., in press, JAAA
15 Results Cochlear Recipients (n = 21) Wolfe et al., in press, JAAA
16 Results Adaptive Digital technology resulted in significant improvements at 70, 75, and 80 dba noise levels over Fixed-gain and Adaptive FM technology. Adaptive FM technology resulted in significant improvements at 70, 75, and 80 dba noise levels over Fixed-gain FM technology. No differences were found between CI manufacturers.
17 MED-EL and Roger Roger MLxi MLxS 20 0 N = 7 Quiet Wolfe et al., in press, Hearing Journal
18 What about hearing aids? Speech Recognition Benefits of Digital Adaptive Broadband Wireless Transmission Technology Linda M. Thibodeau AAA, 2013 Annaheim, CA
19 Percent Correct HINT Results (N=10) Fixed FM 0.50 Adaptive FM Adaptive Digital Quiet Average Noise Level (dba) Thibodeau, 2013
20 Objective Measures Adaptive Digital technology resulted in significant improvements for 65, 70, 75, and 80 dba noise levels over Fixed and Adaptive technology. The average improvement in speech recognition at the 80dBA level by Adaptive Digital over the current Adaptive FM was 35%! And Adaptive Digital over Fixed FM technology was 42%! Thibodeau, 2013
21 Roger receivers Plug & Play No channel management Water-resistant: Integrated receivers Operating range: 20m/66ft Roger X is 35% smaller than MLxi Power consumption: 3.1 ma
22 Roger MyLink Roger MyLink is a bodyworn receiver with inductive neckloop Suitable for all hearing systems with a T-Coil Not recommended for very young children
23 How about digital RF for classroom audio distribution systems (CADS)?
24 Classroom Audio Distribution Systems Goals: Create a uniform distribution of the sound of interest across the classroom, and provide a modest improvement in the signal-to-noise ratio. May utilize: FM Infrared Digital RF
25 Study Objectives Evaluate benefits of classroom audio distribution (CAD) systems for children with hearing loss or normal hearing. Compare performance in quiet and in noise obtained with an adaptive single-loudspeaker CAD vs. a fixed-gain, CAD utilizing 4 loudspeakers strategically placed in the classroom
26 Subjects 15 Children with Hearing Loss 6-13 years old Mean Age: 9.5 years old 4FPTA Range: 35 to Children with Normal Hearing 5-12 years old Mean Age: 8 years old 10 Adults with Normal Hearing years old Mean Age: 34 years old
27 Mean Hearing Loss Subjects wore a variety of behind-the-ear hearing aids. N = 15
28 Audio Enhancement Elite II Classroom Audio Distribution System Tear Drop Infrared Mic Audio Enhancement Elite II 30 Watt Receiver/Amplifier Infrared Dome Sensor Four WS09 Wall-mounted loudspeakers
29 Audio Enhancement Elite II Classroom Audio Distribution System Tear Drop Infrared Mic Audio Enhancement Elite II 30 Watt Receiver/Amplifier Infrared Dome Sensor Four WS09 Wall-mounted loudspeakers
30 Phonak DigiMaster 5000 Classroom Audio Distribution System Phonak DigiMaster 5000 Phonak inspiro transmitter
31 Phonak DigiMaster 5000 Classroom Audio Distribution System Utilizes digitally modulated (DM) radio frequency transmission Features adaptive (Dynamic) changes in loudspeaker gain dependent upon classroom noise levels. Features an array of 12 loudspeakers Emits sound in horizontal plane, with minimal vertical spread Reduce reverberation Distributes sound across classroom Loudspeakers positioned at head level Acoustic feedback cancellation
32 Classroom Setup Nose NOISE HINT NOISE Noise 8 in L1 22 ft, 4 in NOISE LEVEL: L1 = L2 18 ft L2 NOISE NOISE 15 ft, 5 in schematic diagram
33 Background Noise Classroom noise was presented from the four loudspeakers in the corners of the room. Nose NOISE HINT NOISE Noise 22 ft, 4 in L1 8 in NOISE LEVEL: L1 = L2 18 ft Noise levels measured at FM mic and subject location Tested in: Quiet & Noise at 50 dba 55 dba 60 dba 65 dba 70 dba 75 dba L2 NOISE NOISE 15 ft, 5 in schematic diagram
34 Classroom Setup Phonak DM5000 Nose NOISE HINT NOISE Noise AE Elite II 8 in AE Elite II L1 22 ft, 4 in NOISE LEVEL: L1 = L2 18 ft AE Elite II L2 AE Elite II NOISE NOISE 15 ft, 5 in schematic diagram
35 Classroom Setup HINT Sentences presented at 85 dba to FM mic Nose NOISE HINT NOISE 8 in L1 22 ft, 4 in NOISE LEVEL: L1 = L2 18 ft L2 The HINT sentence level at the subject was 64 dba NOISE NOISE 15 ft, 5 in schematic diagram
36 Classroom Setup The output of the Phonak DigiMaster 5000 was set to the manufacturer s default setting. Nose NOISE L1 8 in HINT NOISE The gain of the Elite II was set to provide an equivalent level in quiet at the subject location. 22 ft, 4 in NOISE LEVEL: L1 = L2 This resulted in the HINT sentences being presented at 68 dba at the subject location. 18 ft L2 NOISE NOISE 15 ft, 5 in schematic diagram
37 Test Conditions No FM Phonak DM5000 alone Audio Enhancement Elite II alone Phonak DM Personal FM Inspiro to DM5000 and Personal FM Audio Enhancement Elite II + Personal FM Inspiro connected to audio output port of Elite II Personal FM alone Inspiro to personal FM
38 Results
39 % Correct Speech Recognition without FM Adults understand speech in noise better than children. Children with normal hearing understand speech in noise better than children with hearing loss. The difference between groups becomes greater at higher noise levels. Noise Level (dba) All groups experience more trouble in noise (60, 65, 70, & 75 db A). Performance became progressively poorer from 60 to 75 db A.
40 % Correct Normal Hearing Adults with CADS CADS improve adults speech recognition in noise at noise levels of 65, 70, and 75 db A. Phonak DM5000 Dynamic CADS provided better speech recognition in noise than Audio Enhancement Elite II system at 70 and 75 db A. Noise Level (dba)
41 % Correct Normal Hearing Children with CADS CADS improve speech recognition in noise of children with normal hearing at noise levels of 60, 65, 70, and 75 db A. Phonak DM5000 Dynamic CADS provided better speech recognition in noise than Audio Enhancement Elite II system at 70 and 75 db A. Noise Level (dba)
42 % Correct Children with Hearing Loss CADS Performance CADS improve speech recognition in noise of children with hearing loss at noise levels of 60, 65, 70, and 75 db A. Noise Level (dba) Phonak DM5000 Dynamic CADS provided better speech recognition in noise than Audio Enhancement Elite II system at 70 and 75 db A.
43 % Correct CADS Performance Across Groups Noise Level (dba)
44 What about personal FM?
45 CADS vs. CADS + Personal FM Personal FM better than no FM at all noise levels. Personal FM better than CADS at 60, 65, 70, and 75 db A.
46 Phonak CADS + Personal FM vs. Personal FM alone No difference in performance between CADS + personal FM vs. personal FM alone
47 % Correct Children with Hearing Loss CADS + FM vs. Personal FM Noise Level (dba)
48 Results Phonak CADS + personal FM and personal FM alone are both better than Audio Enhancement CADS + personal FM at 60, 65, 70, and 75 db A. Possible causes? Loss of adaptive (Dynamic) FM Loss of noise pre-processing at inspiro. Insufficient input from audio output of AE Elite II to inspiro
49 % Correct Children with Hearing Loss CADS vs. CADS + Personal FM What to do? Noise Level (dba)
50 Potential Upgrade Alternative Solution: Wear two mic/transmitters Digimaster X Plugs into the audio input port of existing CADS. Inspiro delivers signal to Digimaster X and to personal FM receiver
51 % Correct Good News! Children with Hearing Loss vs. Gold Standard Adults with Dynamic SF NH Children with Dynamic SF Children with HL and Dynamic SF Children with HL and Dynamic SF+Personal FM Quiet Noise Level (dba)
52 Conclusions/Clinical Implications Speech recognition in noise: Roger Digital > Adaptive FM>Fixed FM Adults > NH Children > Children with HL CADS improve speech recognition in noise for all subjects. Dynamic CADS > Fixed-gain CADS Personal FM: largest improvement in speech recognition in noise. Phonak Dynamic DM Personal FM provides better performance in noise than AE Elite II + Personal FM. Little to no speech recognition in noise improvement with Phonak CADS + Personal FM vs. Personal FM alone. But CADS may improve classroom acoustics in real world.
53 Acknowledgments Mila Morais, B.Sc., Audiology Intern Sara Neumann, AuD, Audiology Intern Pati Burns, B.Sc., Audiology Assistant Nathan Wells, B.Sc., Au.D. Student Joanna Smith, M.S., CCC-SLP, LSLS Erin Schafer, Ph.D., Audiologist Hans Mulder, Felix Goldbeck, & Francois Marqouis
54 Thank you for your attention!
Evaluation of Classroom Audio Distribution and Personal FM Systems. Jace Wolfe
Evaluation of Classroom Audio Distribution and Personal FM Systems Jace Wolfe The Hearts for Hearing Team Audiologists Additional Team Members Jace Wolfe, Ph.D., CCC-A Kris Hopper Kerri Brumley Pati Burns
More informationEvaluation of Wireless, Digital, Audio-Streaming Accessories Designed for the Cochlear Nucleus 6 Sound Processor
Evaluation of Wireless, Digital, Audio-Streaming Accessories Designed for the Cochlear Nucleus 6 Sound Processor Jace Wolfe, Mila Morais Duke, and Erin Schafer Cochlear Ltd. and the GN Resound hearing
More informationREMOTE-MICROPHONE TECHNOLOGY!!
FITTING AND VERIFICATION OF REMOTE- MICROPHONE TECHNOLOGY IN CHILDREN WITH NORMAL HEARING, HEARING AIDS, AND COCHLEAR IMPLANTS Erin C. Schafer, Ph.D. University of North Texas Dept. of Speech & Hearing
More informationFM Solutions for Cochlear Implants. Including Dynamic FM!
FM Solutions for Cochlear Implants Including Dynamic FM! 2 Table of Contents 4 Dynamic FM 30 FAQ 5 Dynamic FM Transmitters 31 Programming a receiver with FM SuccessWare 6 FM receivers 6 MLxi/MLxi Baha
More informationLife is on. Interact freely. Communicate with confidence. Live without limit. Life is on. www.phonak.com www.dynamicsoundfield.com
Life is on We are sensitive to the needs of everyone who depends on our knowledge, ideas and care. And by creatively challenging the limits of technology, we develop innovations that help people hear,
More informationWhat you need to know about student s hearing technology for classroom listening
What you need to know about student s hearing technology for classroom listening? Presentation developed by: Gwen Severance, AuD & Patty Klein, AuD September, 2012 There s A LOT to cover! Types of Equipment
More informationExpanding Performance Leadership in Cochlear Implants. Hansjuerg Emch President, Advanced Bionics AG GVP, Sonova Medical
Expanding Performance Leadership in Cochlear Implants Hansjuerg Emch President, Advanced Bionics AG GVP, Sonova Medical Normal Acoustic Hearing High Freq Low Freq Acoustic Input via External Ear Canal
More informationRadio Aid Systems. 12 School &
Radio Aid Systems Radio Aid Systems from Connevans For children and young people with a hearing loss, listening in noisy and poor acoustic environments is particularly challenging. It is difficult, tiring
More informationBoost the performance of your hearing aids. Phonak wireless accessories
Boost the performance of your hearing aids Phonak wireless accessories Phonak hearing aids are high performance solutions aimed at reconnecting people to the beauty of sound. Although new technologies
More informationHarmony Sound Processor Product Guide
Tools for Schools Harmony Sound Processor Product Guide For Educators, Therapists, and Families Harmony Sound Processor The Harmony Sound Processor is uniquely designed to provide the latest in sound-processing
More informationTesting FM Systems on the FP35 Hearing Aid Analyzer -1-
Testing FM Systems on the FP35 Hearing Aid Analyzer -1- Testing FM Systems on the FP35 Hearing Aid Analyzer Introduction This workbook describes how to test FM systems with the FP35 Hearing Aid Analyzer
More informationSelecting the best listening system technology for the job
Selecting the best listening system technology for the job Selecting the best listening system tech nology for the job Williams Sound currently offers a choice of wireless technologies for hearing assistance
More informationhearing products and acoustic regulations in school 1+1 could equal 3, if a classroom is acoustically regulated when using hearing systems
hearing products and acoustic regulations in school 1+1 could equal 3, if a classroom is acoustically regulated when using hearing systems By Anna K Lejon, November 2014 Anna Karlsson Lejon has a master's
More informationCochlear Implant and Associated Technologies for Hearing
Cochlear Implant and Associated Technologies for Hearing Mada Assistive Technology Center Tel: 00 974 44594050 Fax: 00 974 44594051 Email: info@mada.org.qa What is a cochlear implant? Cochlear implants
More informationSamuel R. Atcherson, Ph.D.
Beyond Hearing Aids and Cochlear Implants: Helping Families Make the Most of Assistive Technology Samuel R. Atcherson, Ph.D. Assistant Professor, Clinical Audiologist, Person w/ Hearing Loss University
More informationAudiological Equipment and Services Bid # 2014-052
Bid Request Number Title Close Date 2014-052 Audiological Equipment and Services 8/12/2014 Award Info Line Items Line 1 Phonak Roger Inspiro FM transmitter, includes ilapel or EasyBoom mic, power supply,
More informationUSB 3.0* Radio Frequency Interference Impact on 2.4 GHz Wireless Devices
USB 3.0* Radio Frequency Interference Impact on 2.4 GHz Wireless Devices White Paper April 2012 Document: 327216-001 INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL PRODUCTS. NO LICENSE,
More informationPediatric Fitting Guide
Pediatric Fitting Guide October 2013 / Phonak Target 3.2 This guide aims to provide a detailed introduction to Phonak Target Junior Mode for hearing care professionals who fit children of all ages. Introduction...
More informationSafety Warnings and Guidelines
Safety Warnings and Guidelines Thank you for purchasing this Wireless Speaker Amplifier! For best results, please thoroughly read this manual and carefully follow the instructions. Please pay extra attention
More informationSmartDiagnostics Application Note Wireless Interference
SmartDiagnostics Application Note Wireless Interference Publication Date: May 27, 2015 KCF Technologies, Inc. Background The SmartDiagnostics wireless network is an easy to install, end-to-end machine
More informationBoost the performance of your hearing aids. Phonak wireless add-ons
Boost the performance of your hearing aids Phonak wireless add-ons Modern hearing aid technology makes hearing and understanding in most situations enjoyable. But when you re on the phone, watching TV
More informationSafe Listening! How I Enjoy My Music and Avoid a Silent Future (ITU and WHO) Brian Copsey
Safe Listening! How I Enjoy My Music and Avoid a Silent Future (ITU and WHO) Brian Copsey Safe Listening! How I Enjoy My Music and Avoid a Silent Future (ITU and WHO) This presentation focuses on those
More informationSearch keywords: Connect, Meeting, Collaboration, Voice over IP, VoIP, Acoustic Magic, audio, web conferencing, microphone, best practices
Title: Acoustic Magic Voice Tracker II array microphone improves operation with VoIP based Adobe Connect Meeting URL: www.acousticmagic.com By: Bob Feingold, President, Acoustic Magic Inc. Search keywords:
More informationLearning Objective. To learn about current technological interventions that allow children with hearing loss to access auditory information
Learning Objective To learn about current technological interventions that allow children with hearing loss to access auditory information in the educational environment. Module Outline Goal: To improve
More informationB. Equipment shall be furnished and installed as specified. No substitutions will be allowed.
CLASSROOM SOUNDFIELD DISTRIBUTION SYSTEM PART 1 GENERAL 1.1 RELATED DOCUMENTS: A. Drawings and general provisions of Contract, including General and Supplementary Conditions and Division-1 Specification
More informationFREQUENTLY ASKED QUESTIONS
FREQUENTLY ASKED QUESTIONS TABLE OF CONTENTS Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 Section 7 Section 8 Section 9 Section 10 Wireless Connectivity...2 Ear-to-Ear...3 Streaming...4
More informationEducational Audiology Services in the Los Angeles Public Schools
Educational Audiology Services in the Los Angeles Public Schools Gwen Severance, AuD, Educational Audiologist LAUSD Melissa Garafalo, AuD, Educational Audiologist LACOE Margaret Moretti, MA, Educational
More informationA Microphone Array for Hearing Aids
A Microphone Array for Hearing Aids by Bernard Widrow 1531-636X/06/$10.00 2001IEEE 0.00 26 Abstract A directional acoustic receiving system is constructed in the form of a necklace including an array of
More informationUnilateral (Hearing Loss in One Ear) Hearing Loss Guidance
Unilateral (Hearing Loss in One Ear) Hearing Loss Guidance Indiana s Early Hearing Detection and Intervention Program Before universal newborn hearing screening, most children with unilateral hearing loss
More informationis the power reference: Specifically, power in db is represented by the following equation, where P0 P db = 10 log 10
RF Basics - Part 1 This is the first article in the multi-part series on RF Basics. We start the series by reviewing some basic RF concepts: Decibels (db), Antenna Gain, Free-space RF Propagation, RF Attenuation,
More informationDT3: RF On/Off Remote Control Technology. Rodney Singleton Joe Larsen Luis Garcia Rafael Ocampo Mike Moulton Eric Hatch
DT3: RF On/Off Remote Control Technology Rodney Singleton Joe Larsen Luis Garcia Rafael Ocampo Mike Moulton Eric Hatch Agenda Radio Frequency Overview Frequency Selection Signals Methods Modulation Methods
More informationExample Network Design Report
Example Network Design Report This is an example report created with Ekahau Site Survey Pro. You can freely customize the MS Word Template, and ESS will generate the report based on the template. Courier
More informationGuide: Technologies for people who are Deaf or hard of hearing
Guide: Technologies for people who are Deaf or hard of hearing The following are examples of how technology can aid communication if you are Deaf or hard of hearing. These options may not suit all situations.
More informationHear Better With FM. Get more from everyday situations. Life is on. www.phonak.com
Hear Better With FM Get more from everyday situations Life is on We are sensitive to the needs of everyone who depends on our knowledge, ideas and care. And by creatively challenging the limits of technology,
More informationCochlear Implant Program
Cochlear Implant Program Medical Center East, South Tower 1215 21 st Avenue South, Room 9302 Nashville, TN 37232-8025 (615) 936-8623 (615) 875-1410 (fax) Thank you for your interest in the Vanderbilt Bill
More informationPosition Paper on Cochlear Implants in Children
Position Paper on Cochlear Implants in Children Position: The Canadian Association of Speech-Language Pathologists and Audiologists (CASLPA) supports cochlear implantation in children where appropriate
More informationPhonak Naída Q. Product information
Phonak Naída Q Product information Phonak Naída Q is the most complete, water resistant power portfolio covering moderate to profound hearing losses. It includes three models, available in four performance
More informationInterference to Hearing Aids by Digital Mobile Telephones Operating in the 1800 MHz Band.
Interference to Hearing Aids by Digital Mobile Telephones Operating in the 1800 MHz Band. Reference: EB968 Date: January 2008 Author: Eric Burwood (National Acoustic Laboratories) Collaborator: Walter
More informationCHAPTER 1 1 INTRODUCTION
CHAPTER 1 1 INTRODUCTION 1.1 Wireless Networks Background 1.1.1 Evolution of Wireless Networks Figure 1.1 shows a general view of the evolution of wireless networks. It is well known that the first successful
More informationWhat we re going to cover
What we re going to cover Planes, Trains and Automobiles: Travel Tips for People with Hearing Loss Tina Childress, MA, CCC-A HLAA 2011 Washington, DC Travel by Train Travel by Automobile ALDs What to Pack
More informationLogitech Advanced 2.4 GHz Technology With Unifying Technology
Logitech Advanced 2.4 GHz Technology Revision 070709 July 7, 2009 TABLE OF CONTENTS 1 INTRODUCTION: THE MOVE TO WIRELESS PERIPHERALS IN BUSINESS...3 2 SYSTEM OVERVIEW...4 2.1 NETWORK TOPOLOGY...4 2.2 MAIN
More informationFOR MORE INFORMATION CONTACT BRAD.DODSON@CLEARSOUNDS.COM
FOR MORE INFORMATION CONTACT BRAD.DODSON@CLEARSOUNDS.COM PRESENTED BY: Brad Dodson Business Development & Training Manager TOPIC: Tools for Better Hearing on a Multi line line Business Telephone OVERVIEW:
More informationControls (front) 1. Loudspeaker 2. Light button 3. Band button 4. Auto tune button 5. Alarm button 6. LCD display
GB Contents Controls... 2-4 Mains operation... 5 Operating your radio... 6 Selecting a station DAB... 7 Display modes DAB... 8 Finding new stations - DAB... 9 Secondary services DAB... 9 Manual tuning
More informationAN1200.04. Application Note: FCC Regulations for ISM Band Devices: 902-928 MHz. FCC Regulations for ISM Band Devices: 902-928 MHz
AN1200.04 Application Note: FCC Regulations for ISM Band Devices: Copyright Semtech 2006 1 of 15 www.semtech.com 1 Table of Contents 1 Table of Contents...2 1.1 Index of Figures...2 1.2 Index of Tables...2
More informationMAINTENANCE & ADJUSTMENT
MAINTENANCE & ADJUSTMENT Circuit Theory The concept of PLL system frequency synthesization is not of recent development, however, it has not been a long age since the digital theory has been couplet with
More informationCase Study THE IMPORTANCE OF ACCURATE BEHAVIOURAL TESTING IN INFANT HEARING AID FITTINGS
Case Study THE IMPORTANCE OF ACCURATE BEHAVIOURAL TESTING IN INFANT HEARING AID FITTINGS Andrea Kelly, PhD, MNZAS Auckland District Health Board Suzanne Purdy, PhD, MNZAS University of Auckland Asymmetrical
More informationC ellular telephones increasingly use digital
J Am Acad Audiol 12 : 309-314 (2001) Hearing Aid and Cellular Telephone Compatibility : Working Toward Solutions H. Stephen Berger* Abstract The ability of hearing aid wearers to use cellular telephones
More informationTV & Assistive Listening Devices
10 TV & Assistive Listening Devices TV & Assistive Listening Devices l Relaxing at the end of the day watching TV l Enjoying listening to music l Catching up with family & friends at a restaurant l Developing
More informationLBESPA s 16 th Annual Continuing Education Workshop Course Titles, Abstracts, and Bio s
LBESPA s 16 th Annual Continuing Education Workshop Course Titles, Abstracts, and Bio s Pharmacology for Speech-Language Pathologist and Audiologists Speakers: Sherry Sancibrian, M.S., CCC-SLP Increasingly,
More informationGSI AUDIOSTAR PRO CLINICAL TWO-CHANNEL AUDIOMETER. Setting The Clinical Standard
GSI AUDIOSTAR PRO CLINICAL TWO-CHANNEL AUDIOMETER Setting The Clinical Standard GSI AUDIOSTAR PRO CLINICAL TWO-CHANNEL AUDIOMETER Tradition of Excellence The GSI AudioStar Pro continues the tradition of
More informationLogitech Advanced 2.4 GHz Technology
Logitech Advanced 2.4 GHz Technology Revision 1.1H March 2, 2009 TABLE OF CONTENTS 1 INTRODUCTION... 3 2 SYSTEM OVERVIEW... 4 2.1 NETWORK TOPOLOGY...4 2.2 MAIN FEATURES...4 3 ASSOCIATION MODEL... 5 4 ENCRYPTION...
More informationHCS-3600MB2 Conference Main Unit
HCS-3600MB2 Conference Main Unit Features TCP/IP communication protocol in PC control Remote control, remote diagnosis and remote update Parallel redundancy & multi-room configuration Excellent immunity
More informationRECOMMENDATION ITU-R F.1113. (Question ITU-R 157/9) b) that systems using this mode of propagation are already in service for burst data transmission,
Rec. ITU-R F.1113 1 RECOMMENDATION ITU-R F.1113 RADIO SYSTEMS EMPLOYING METEOR-BURST PROPAGATION (Question ITU-R 157/9) (1994) Rec. ITU-R F.1113 The ITU Radiocommunication Assembly, considering a) that
More informationACOUSTICAL CONSIDERATIONS FOR EFFECTIVE EMERGENCY ALARM SYSTEMS IN AN INDUSTRIAL SETTING
ACOUSTICAL CONSIDERATIONS FOR EFFECTIVE EMERGENCY ALARM SYSTEMS IN AN INDUSTRIAL SETTING Dennis P. Driscoll, P.E. and David C. Byrne, CCC-A Associates in Acoustics, Inc. Evergreen, Colorado Telephone (303)
More informationDX 2517. AM FM SSB CW PA Amateur Base Station Transceiver OWNER S MANUAL RX / TX 2 4 POWER NF CHANNEL MODE RF POWER OFF CAL OFF OFF CALIBRATE
1 2 3 6 4050 ULA 6070 TI 80 90 100 9 DX 2517 2517 RX / TX 0 2 4 SWR WATTS SET 81012 22 1 010 3 2030 5 MOD 7 ON dbover 9 SIGNAL +20 +40+60 PA FM AM USB LSB CW POWER ON SWR NB / ANL R.BEEP +10KHz NF CHANNEL
More informationTCB Workshop. Unlicensed National Information Infrastructure Devices (U-NII)/Dynamic Frequency Selection (DFS)
1 TCB Workshop Unlicensed National Information Infrastructure Devices (U-NII)/Dynamic Frequency Selection (DFS) Andrew Leimer Office of Engineering and Technology/Equipment Authorization Branch FCC Laboratory
More informationTX GSM SMS Auto-dial Alarm System. Installation and User Manual
TX GSM SMS Auto-dial Alarm System Installation and User Manual Product Features: 1. 16 wireless zones, 3 wired zones alarm system, suitable for small to medium size offices and homes. 2. The system uses
More informationWireless that works. How to interview potential suppliers. Vantage Point Network Systems
Wireless that works How to interview potential suppliers Vantage Point Network Systems How to use this document If you re implementing a wireless network, chances are you will interview more than one supplier
More informationwww.fmtalkinghouse.com
www.fmtalkinghouse.com 24x7 FM Announcement System (Talking Sign) 2009 FM TALKING HOUSE All rights reserved Talking Sign 24x7 FM Announcement System Description: The 24x7 FM Announcement System or Talking
More informationBluetooth voice and data performance in 802.11 DS WLAN environment
1 (1) Bluetooth voice and data performance in 802.11 DS WLAN environment Abstract In this document, the impact of a 20dBm 802.11 Direct-Sequence WLAN system on a 0dBm Bluetooth link is studied. A typical
More informationHearing Loss and Older Adults
Hearing Loss and Older Adults Hearing loss is one of the most common conditions affecting older adults. One in three people older than 60 and half of those older than 85 have hearing loss. Hearing problems
More informationAdvanced Speech-Audio Processing in Mobile Phones and Hearing Aids
Advanced Speech-Audio Processing in Mobile Phones and Hearing Aids Synergies and Distinctions Peter Vary RWTH Aachen University Institute of Communication Systems WASPAA, October 23, 2013 Mohonk Mountain
More informationWidex Dex FAQ. General
Widex Dex FAQ General Q: What is WidexLink Technology? A: WidexLink is the proprietary digital wireless transmission technology for hearing aids and external devices like cell phones, TV etc Q: What is
More informationAcoustical Design of Rooms for Speech
Construction Technology Update No. 51 Acoustical Design of Rooms for Speech by J.S. Bradley This Update explains the acoustical requirements conducive to relaxed and accurate speech communication in rooms
More informationDemonstration of the presentation and access technology in classrooms, conference rooms and labs at NTID
Demonstration of the presentation and access technology in classrooms, conference rooms and labs at NTID Chas Johnstone Technology and Information Services department National Technical Institute for the
More informationTurbo X. www.smartwireless.co.uk. 594 channel UHF true diversity
Turbo X 594 channel UHF true diversity The new Turbo X series from Smart Wireless is the culmination of two years of research and development into advanced wireless technology. Using sophisticated RF design
More informationImplementing Voice Over Wireless Networks: Realities and Challenges
WHITE PAPER Implementing Voice Over Wireless Networks: Realities and Challenges August 2006 CONTENTS 1 Implementing Voice Over Wireless Networks 2 The Physical Environment and VoWi-Fi 2 Capacity and VoWi-Fi
More informationHomePlug adapters for transferring music and speech over your household power circuit
HomePlug adapters for transferring music and speech over your household power circuit Build up your own audio network. Simply use your household power circuit no need to drill or lay new cables. Connect
More informationTecEar s Top Ten ALD Picks
Assistive listening devices compliment the capabilities of digital hearing aids and cochlear implants, significantly enhancing the user's ability to use phones, cell phones, TV/DVD, and audio devices such
More informationOmni Antenna vs. Directional Antenna
Omni Antenna vs. Directional Antenna Document ID: 82068 Contents Introduction Prerequisites Requirements Components Used Conventions Basic Definitions and Antenna Concepts Indoor Effects Omni Antenna Pros
More informationManufacturer: Phonak AG Laubisrütistrasse 28 CH-8712 Stäfa Switzerland. www.phonak.com. 029-1004-02/V1.00/2009-12/A+W Printed in Switzerland
Manufacturer: Phonak AG Laubisrütistrasse 28 CH-8712 Stäfa Switzerland www.phonak.com! 029-1004-02/V1.00/2009-12/A+W Printed in Switzerland Phonak AG All rights reserved User Guide Contents 1. Welcome
More informationInterpreting the Information Element C/I
Prepared Date Rev Document no pproved File/reference 1(17) 2000-04-11 Interpreting the Information Element C/I This document primarily addresses users of TEMS Investigation. 2(17) 1 Introduction Why is
More informationTri-Band RF Transceivers for Dynamic Spectrum Access. By Nishant Kumar and Yu-Dong Yao
Tri-Band RF Transceivers for Dynamic Spectrum Access By Nishant Kumar and Yu-Dong Yao Presentation outline Introduction to WISELAB Active work at WISELAB Tri-band test bed Elements of the test bed Experimentation
More information1. What is the main difference between the X3 micro and other Bluetooth headsets? 3. How does the X3 micro use the Bluetooth technology?
X3 Micro FAQ X3 Micro General 1. What is the main difference between the X3 micro and other Bluetooth headsets? 2. What is included in the X3 micro package? 3. How does the X3 micro use the Bluetooth technology?
More informationUser Manual Wireless HD AV Transmitter & Receiver Kit
Ma User Manual REV.1.0 Thank you for purchasing this. Please read the following instructions carefully for your safety and prevention of property damage. Do not use the product in the extreme hot, cold,
More informationIRA 568. All in One. Infrared Column Soundfield System. www.linkx.com.tw. Features: Recommend Applications: LINKX ELECTRONICS CO., LTD.
IRA 568 All in One Infrared Column Soundfield System E n j o y B e tt e r L e a r n i n g & C o m m u n i c a t i o n An extraordinary unique front panel control designed for small presentation environments,
More informationConference Equipment Rental
Conference Equipment Rental - Simultaneous Interpretation System - Tour Guide System - Sound & Lighting System - Conference Microphone - Projector and Screen - Digital Video Camera - Office Automation
More informationDepartment of Electrical and Computer Engineering Ben-Gurion University of the Negev. LAB 1 - Introduction to USRP
Department of Electrical and Computer Engineering Ben-Gurion University of the Negev LAB 1 - Introduction to USRP - 1-1 Introduction In this lab you will use software reconfigurable RF hardware from National
More informationHearing Aid Compatibility With Digital Wireless Cell Phones:
Hearing Aid Compatibility With Digital Wireless Cell Phones: PHOTO: Oticon An Update for Audiologists, Physicians, and Hearing Instrument Specialists What you Need to Know about Cell Phones and Hearing
More informationThe Audiology and Vocational Rehabilitation partnership
Audiology on the Job The Audiology and Vocational Rehabilitation partnership Nancy Mascia, Au.D.,CCC-A Alabama Dept of Rehabilitation Dr. Nancy Mascia is an employee of the above organization that provides
More informationChildren Hear Better with FM. A starter guide for parents and teachers
Children Hear Better with FM A starter guide for parents and teachers 2 Children hear better with FM This guide explains how and when FM can help Many children who wear hearing aids still have difficulty
More informationWireless. with Personal Mix Control and EP3 Dynamic Earphones
Wireless In-Ear Monitor Systems with Personal Mix Control and EP3 Dynamic Earphones Why In-Ear Monitors? Clarity is first among the many reasons to make the switch from traditional floor monitors to wireless
More informationRECOMMENDATION ITU-R BS.704 *, ** Characteristics of FM sound broadcasting reference receivers for planning purposes
Rec. ITU-R BS.704 1 RECOMMENDATION ITU-R BS.704 *, ** Characteristics of FM sound broadcasting reference receivers for planning purposes (1990) The ITU Radiocommunication Assembly, considering a) that
More informationGuidelines for Fitting and Monitoring FM Systems
Guidelines Fitting and Monitoring FM Systems Guidelines 1999 / II - 151 Guidelines for Fitting and Monitoring FM Systems ASHA Ad Hoc Committee on FM Systems This document is a revision of the Guidelines
More informationWireless Medical Telemetry Laboratory
Wireless Medical Telemetry Laboratory 0 Introduction The development of wireless medical telemetry has become an increasingly popular application in recent years. As the elderly population continues to
More informationSavia ArtTM. Product Line. Product information
Product information avia ArtTM Product Line avia Art is a complete new product line with a broad spectrum of innovations. The authentic sound quality is possible due to an intelligent combination of two
More informationTour Guide System. 2014, E-Top Technologies. All Right Reserved
1 Tour Guide System WT-500 International Travel Tour System... 2 DGT-2400 2.4GHz Digital Tour Guide System... 4 WT-480 Classic Outdoor Tour Guide System... 6 2 WT-500 International Travel Tour System OKAYO
More informationAFFORDABLE, FLEXIBLE, PERFORMANCE, FREEDOM CONTROL. speaker systems
AFFORDABLE, FLEXIBLE, PERFORMANCE, FREEDOM CONTROL speaker systems BRILLIANTLY CLEAN JBL CONTROL NOW JBL CONTROL NOW JBL CONTROL NOW AW Description Bookshelf/on-wall/corner-mount All-weather loudspeaker
More informationPhonak Wireless Communication Portfolio
Phonak Wireless Communication Portfolio Product information The accessories of the Phonak Wireless Communication Portfolio offer great benefits in difficult listening situations and unparalleled speech
More informationEN 301 489-17 v1.2.1 TEST REPORT FOR. 802.11ag/Draft 802.11n WLAN PCI-E Mini Card MODEL NUMBER: BCM94322MC REPORT NUMBER: 07U11529-5
EN 301 489-17 v1.2.1 TEST REPORT FOR 802.11ag/Draft 802.11n WLAN PCI-E Mini Card MODEL NUMBER: BCM94322MC REPORT NUMBER: 07U11529-5 ISSUE DATE: JANUARY 29, 2008 Prepared for BROADCOM CORPORATION 190 MATHILDA
More informationMy child has a hearing loss
My child has a hearing loss A guide for parents Content You are not alone 3 Hearing impairment 5 Methods of testing hearing 6 Audiogram 7 Types and causes of hearing loss 8 Degree of hearing loss 10 Where
More informationUNIVERSITY OF CALICUT
UNIVERSITY OF CALICUT SCHOOL OF DISTANCE EDUCATION BMMC (2011 Admission) V SEMESTER CORE COURSE AUDIO RECORDING & EDITING QUESTION BANK 1. Sound measurement a) Decibel b) frequency c) Wave 2. Acoustics
More informationPersonal Stage Monitoring Selection & Operation. John Born Shure Inc.
Personal Stage Monitoring Selection & Operation John Born Shure Inc. What is a Personal Monitor System? Closed Monitor System Does not affect the performance environment Does not depend on the performance
More informationEvaluating Real-World Hearing Aid Performance in a Laboratory
Evaluating Real-World Hearing Aid Performance in a Laboratory Mead C. Killion principal investigator* Lawrence J. Revit research assistant and presenter** Ruth A. Bentler research audiologist Mary Meskan
More informationProduct Information S N O. Portable VIP protection CCTV & Alarm System 2
Product Information S N O Portable VIP protection CCTV & Alarm System 2 G O V E R N M E N T A L S E C U R I T Y S O L U T I VIP KIT Rapid Deployment VIP Protection Kit The VIP KIT has been designed to
More informationINTRODUCTION TO COMMUNICATION SYSTEMS AND TRANSMISSION MEDIA
COMM.ENG INTRODUCTION TO COMMUNICATION SYSTEMS AND TRANSMISSION MEDIA 9/6/2014 LECTURES 1 Objectives To give a background on Communication system components and channels (media) A distinction between analogue
More informationSpectrum Analysis How-To Guide
Spectrum Analysis How-To Guide MOTOROLA SOLUTIONS and the Stylized M Logo are registered in the US Patent & Trademark Office. Motorola Solutions, Inc. 2012. All rights reserved. Spectrum Analysis 3 Contents
More informationCochlear Implant Rehabilitation It s Not Just for Kids!
Cochlear Implant Rehabilitation It s Not Just for Kids! Donna L. Sorkin, M.A. and Nancy Caleffe-Schenck, M.Ed., CCC-A, LSLS Cert. AVT How do you know if you might benefit from rehabilitation? What sort
More informationNucleus CP810 Sound Processor and Nucleus CR110 Remote Assistant Troubleshooting Guide
Nucleus CP810 Sound Processor and Nucleus CR110 Remote Assistant Troubleshooting Guide Symbols Contents Note Important information or advice. Can save inconvenience. Tip Time saving hint or saves inconvenience.
More informationIsumaTV. Media Player Setup Manual COOP Cable System. Media Player
IsumaTV Media Player Setup Manual COOP Cable System Visual Setup Front: Router Scan Converter Media Player Video Modulator Equipment: Media Player: Router: Scan Converter: Video Modulator: This computer
More information