Upload File

technology transmission rangeinstrument fitting system. •electroacoustic measures using the...

  • Home
  • Documents
  • Technology Transmission RangeInstrument Fitting System. •Electroacoustic measures using the Verifit confirmed HAs within expectations for normal function based on ANSI S3.22 measurements
1
• Antenna transmission range was evaluated indoors and outdoors with two researchers (R1 and R2) and Phonak wireless technology. • As shown in Figure 2, R1 wore HAs paired with a Phonak ComPilot II and a Roger X (02) receiver. • R2 wore the transmitters and walked backwards facing R1 as she delivered cold running speech. • Three sets of two microphone types, Roger Pen and Roger Clip-On, were each evaluated on three trials for a total of 18 measurements in each condition. • R2 stopped walking backwards when R1 indicated the sound transmission changed. The criteria for determining range was when the sound transmission quality changed from continuous and clear to interrupted and distorted. • The distance between R1 and R2 when sound quality changed was recorded as the transmission range. Audrey Taylor, B.A., Virginia E. Land, B.S., & Linda Thibodeau, Ph.D. The University of Texas at Dallas, Callier Center for Communication Disorders RESULTS INTRODUCTION Technology Transmission Range SUMMARY AND DISCUSSION HEARING AID FITTING REFERENCES PURPOSE PROCEDURES The purpose of this study was to evaluate the transmission range of the Roger Pen and the Roger Clip-On Microphones in two conditions: inside and outside. Figure 1. Hearing Aid, Streamer/Receiver, and Transmitters. Hearing Aid Streamer/Receiver Phonak Audeo V90 Receiver-in- the-Ear Roger Pen ComPilot II & Roger receiver Researcher 1 wore HAs Wireless Assistive Listening Devices (ALDs) have helped individuals improve word recognition by increasing the signal-to-noise ratio (SNR). 1 However, the sound transmission can be dependent on variables affecting antenna strength. The Phonak digital wireless transmitters known as the Roger Pen and Roger Clip- On Mic have sensitive microphone arrays that are designed to improve the SNR in noisy environments. Manufacturer specifications state that the typical transmission range for a Roger Pen and a Roger Clip-On Mic is 10 meters/33 feet. However, if the Roger microphone and receivers are in a direct line of sight, the range may be up to 20 meters/66 feet. 2 Verification of the ranges can help improve functionality of the devices in many settings, including restaurants and classrooms. EQUIPMENT • A participant with normal hearing was fit with a pair of Phonak Audeo V90 receiver-in-the-ear hearing aid (RITE HAs) with local microphones disabled for streaming. • NAL-NL1 gain and output targets were met within 3 dB of a flat 10-dB HL representation of normal hearing as verified with a Verifit Audioscan Hearing Instrument Fitting System. • Electroacoustic measures using the Verifit confirmed HAs within expectations for normal function based on ANSI S3.22 measurements. RESULTS Transmission range for the Roger Pen and Roger Clip-On Microphones for indoor and outdoor conditions is shown in Figure 3. The average transmission range was greater for the Roger Pens compared to the Clip-On Microphones by factor of 2.36 (outside) and 1.94 (inside). Within each microphone type, the transmission range was greater inside compared to outside for the Pen (1.51 times) and Clip-On (1.82 times). Clinically significant differences in transmission range were found as a function of microphone type and the test environment (inside or outside). The greatest transmission range (234 feet) was obtained with the Roger Pen in the inside measurement condition. For comparison, the reported transmission range for a Roger inspiro is approximately 15 meters/50 feet for indoors and 50 meters/170 feet for outdoors. 3 It is possible that the transmission range is impacted by obstructions between the transmitter and receiver when separated by more than approximately 20 feet. According to Phonak, this may be the result of their proprietary 2.4GHz protocol which affects transmission through human bodies or other obstacles. 4 It was observed that obstructions between the transmitter and receiver, such as a hand or having one’s back turned, impacted the transmission range of the Clip-On Mic more than the Pen. Figure 3. Average transmission range for Roger technology for inside and outside trials. Transmitters Roger Clip-On Mic Researcher 2 wore transmitters Figure 2. Set up for testing Roger technology transmission range. ACKNOWLEDGEMENTS Special thanks to Phonak for providing the equipment for this research project. 1. Spangler, C. (2014). Benefits of integrating wireless technology with hearing instruments. Seminars in Hearing, 35 (3), 246-256. DOI: http://dx.doi.org/10.1055/s-0034-1383509. ISSN 0734-0451 2. Phonak Communications. (2014). Roger Pen User Guide (Pamphlet). Murten, Switzerland: Phonak Communications. 3. Phonak Communications. (2014). Roger inspiro User Guide (Pamphlet). Murten, Switzerland: Phonak Communications. 4. Phonak Communications. Roger TM Pen Support. Retrieved October 13, 2017 from https://www.phonakpro.com/us/en/support/product-support/wireless-accessories/roger- pen/faqs-roger-pen.html Figure 4. Variability in transmission range across three trials for three Clip-On and three Pen microphones for inside trials. As shown in Figure 4, transmission range measured indoors varied across three trials for the wireless technology. The transmission range for the Clip-On Mic ranged from 101 feet to 137 feet and the Pen varied from 210 feet to 234 feet. The variability trends were similar for the outside condition.

Upload: others

Post on 14-Sep-2020

1 views

Category:

Documents


0 download

Report

TRANSCRIPT

Page 1: Technology Transmission RangeInstrument Fitting System. •Electroacoustic measures using the Verifit confirmed HAs within expectations for normal function based on ANSI S3.22 measurements

• Antennatransmissionrangewasevaluatedindoorsandoutdoorswithtworesearchers(R1andR2)andPhonakwirelesstechnology.

• AsshowninFigure2,R1woreHAspairedwithaPhonakComPilotIIandaRogerX(02)receiver.

• R2worethetransmittersandwalkedbackwardsfacingR1asshedeliveredcoldrunningspeech.

• Threesetsoftwomicrophonetypes,RogerPenandRogerClip-On,wereeachevaluatedonthreetrialsforatotalof18measurementsineachcondition.

• R2stoppedwalkingbackwardswhenR1indicatedthesoundtransmissionchanged.Thecriteriafordeterminingrangewaswhenthesoundtransmissionqualitychangedfromcontinuousandcleartointerruptedanddistorted.

• ThedistancebetweenR1andR2whensoundqualitychangedwasrecorded asthetransmissionrange.

AudreyTaylor,B.A.,VirginiaE.Land,B.S.,&LindaThibodeau,Ph.D.TheUniversityofTexasatDallas,CallierCenterforCommunicationDisorders

RESULTSINTRODUCTION

TechnologyTransmissionRange

SUMMARYANDDISCUSSION

HEARINGAIDFITTING

REFERENCES

PURPOSE

PROCEDURES

ThepurposeofthisstudywastoevaluatethetransmissionrangeoftheRogerPenandtheRogerClip-OnMicrophonesintwoconditions:insideandoutside.

Figure 1.HearingAid,Streamer/Receiver,andTransmitters.

HearingAid Streamer/Receiver

PhonakAudeoV90Receiver-in-the-Ear

RogerPen

ComPilotII&

Rogerreceiver

Researcher1woreHAs

WirelessAssistiveListeningDevices(ALDs)havehelpedindividualsimprovewordrecognitionbyincreasingthesignal-to-noiseratio(SNR).1 However,thesoundtransmissioncanbedependentonvariablesaffectingantennastrength.ThePhonakdigitalwirelesstransmittersknownastheRogerPenandRogerClip-OnMichavesensitivemicrophonearraysthataredesignedtoimprovetheSNRinnoisyenvironments.ManufacturerspecificationsstatethatthetypicaltransmissionrangeforaRogerPenandaRogerClip-OnMicis10meters/33feet.However,iftheRogermicrophoneandreceiversareinadirectlineofsight,therangemaybeupto20meters/66feet.2 Verificationoftherangescanhelpimprovefunctionalityofthedevicesinmanysettings,includingrestaurantsandclassrooms.

EQUIPMENT

• AparticipantwithnormalhearingwasfitwithapairofPhonakAudeoV90receiver-in-the-earhearingaid (RITEHAs)withlocalmicrophonesdisabledforstreaming.

• NAL-NL1gainandoutputtargetsweremetwithin3dBofaflat10-dBHLrepresentationofnormalhearingasverifiedwithaVerifitAudioscan HearingInstrumentFittingSystem.

• ElectroacousticmeasuresusingtheVerifitconfirmedHAswithinexpectationsfornormalfunctionbasedonANSIS3.22measurements.

RESULTSTransmissionrangefortheRogerPenandRogerClip-OnMicrophonesforindoorandoutdoorconditionsisshowninFigure3.TheaveragetransmissionrangewasgreaterfortheRogerPenscomparedtotheClip-OnMicrophonesbyfactorof2.36(outside)and1.94(inside).Withineachmicrophonetype,thetransmissionrangewasgreaterinsidecomparedtooutsideforthePen(1.51times)andClip-On(1.82times).

Clinicallysignificantdifferencesintransmissionrangewerefoundasafunctionofmicrophonetypeandthetestenvironment(insideoroutside).Thegreatesttransmissionrange(234feet)wasobtainedwiththeRogerPenintheinsidemeasurementcondition.Forcomparison,thereportedtransmissionrangeforaRogerinspiroisapproximately15meters/50feetforindoorsand50meters/170feetforoutdoors.3 Itispossiblethatthetransmissionrangeisimpactedbyobstructionsbetweenthetransmitterandreceiverwhenseparatedbymorethanapproximately20feet.AccordingtoPhonak,thismaybetheresultoftheirproprietary2.4GHzprotocolwhichaffectstransmissionthroughhumanbodiesorotherobstacles.4 Itwasobservedthatobstructionsbetweenthetransmitterandreceiver,suchasahandorhavingone’sbackturned,impactedthetransmissionrangeoftheClip-OnMicmorethanthePen.

Figure3.AveragetransmissionrangeforRogertechnology forinsideandoutsidetrials.

Transmitters

RogerClip-OnMic

Researcher2woretransmitters

Figure2.SetupfortestingRogertechnologytransmissionrange.

ACKNOWLEDGEMENTSSpecialthankstoPhonakforprovidingtheequipmentforthisresearchproject.

1. Spangler,C.(2014).Benefitsofintegratingwirelesstechnologywithhearinginstruments.SeminarsinHearing,35(3),246-256.DOI:http://dx.doi.org/10.1055/s-0034-1383509.ISSN0734-0451

2. PhonakCommunications.(2014).RogerPenUserGuide(Pamphlet).Murten,Switzerland:PhonakCommunications.

3. PhonakCommunications.(2014).Rogerinspiro UserGuide(Pamphlet).Murten,Switzerland:PhonakCommunications.

4. PhonakCommunications.RogerTM PenSupport.RetrievedOctober13,2017fromhttps://www.phonakpro.com/us/en/support/product-support/wireless-accessories/roger-pen/faqs-roger-pen.html

Figure4. VariabilityintransmissionrangeacrossthreetrialsforthreeClip-OnandthreePenmicrophonesforinsidetrials.

AsshowninFigure4,transmissionrangemeasuredindoorsvariedacrossthreetrialsforthewirelesstechnology.ThetransmissionrangefortheClip-OnMicrangedfrom101feetto137feetandthePenvariedfrom210feetto234feet.Thevariabilitytrendsweresimilarfortheoutsidecondition.

Audioscan Verifit User's Guide 3

An electroacoustic sound transmission system that is

Ekeberg, Space in Electroacoustic Music (Diss)

Towards a Taxonomy of Electroacoustic Music: Dialectic

DPM Overview of Electroacoustic Transducers 120615€¦ · An Overview of Electroacoustic Transducers By Donald P. Massa DPM Overview of Electroacoustic Transducers 120615.doc Following

Audioscan Verifit User's Guide 4

Electroacoustic Performance Practice - Karlheinz Stockhausen

The ANALYSIS of Electroacoustic Music

Technical data sheet · REM AutoFit Verifit®LINK, IMC2 Verifit®LINK, IMC2 Paediatric Fitting Mode • DSL Fitting Range • • VC range and step size • • Fitting Formulas DSL

Monitor1 1 - Giuliano Nicoletti - electroacoustic designer

BRÜEL &KJÆR Electroacoustic Solutions - B&K

Musical signification in acousmatic works: the case of ... · Proceedings of the Electroacoustic Music Studies Network Conference Electroacoustic Music in the context of interactive

Participation Over Belonging: Analysing Microsound Using ... · Proceedings of the Electroacoustic Music Studies Network Conference The Art of Electroacoustic Music, Sheffield, June

MUS421–571.1 Electroacoustic Music Composition

The audible and the physical: a gestural typology for ... · Proceedings of the Electroacoustic Music Studies Network Conference Meaning and Meaningfulness in Electroacoustic Music,

Source-bonding as a Variable in Electroacoustic .../67531/metadc33198/m2/1/high... · THEORIES AND AESTHETICS OF ELECTROACOUSTIC COMPOSITION ... important part of the electroacoustic

Electroacoustic Testing of DSP Hearing Aids

REM AutoFit with Verifit

Latin American Electroacoustic Music Collection[Menu with links to multimedia documents] Latin American Electroacoustic Music Collection Ricardo Dal Farra The Daniel Langlois Foundation

NOTATING ELECTROACOUSTIC MUSIC FOR PERFORMERS FROM A ... - UDC Revised.pdf · NOTATING ELECTROACOUSTIC MUSIC FOR PERFORMERS FROM A PRACTITIONER’S EXPERIENCE Terri Hron Wesleyan

ems14 clarke dufeu manning - Electroacoustic Music Studies

Electroacoustic Music and Popular Culture Interacting ... · Proceedings of the Electroacoustic Music Studies Conference, Sforzando! New York, June 2011 3 Frédéric Dufeu Electroacoustic

THE GALATA ELECTROACOUSTIC ORCHESTRA … · 2017-05-30 · n° 2012-1-IT2-ERA10-38878. Keywords: Collective Composition, Cross-curricula, Electroacoustic Music, Improvisation, Music

Electroacoustic Assessment of Hearing Aids and PSAPs

Electroacoustic Simulation for Neophytes Mark Kahrskahrs.us/~mark/pdf/talks/neophyte.pdf · Electroacoustic Simulation for Neophytes Mark Kahrs ([email protected]) 1. 1. Introduction

Andrew Blackburn The ... - Electroacoustic Music · Proceedings of the Electroacoustic Music Studies Network Conference, Nagoya, September 2017 2 The representation of the electronics

Electroacoustic Music of Iannis Xenakis

Electroacoustic Percussion Boards: Sculptured Musical

NOISE-CON 2010 An electroacoustic sound transmission system

Electroacoustic Percussion Boards: Sculptured Musical Instruments

For a Didactical Approach to Electroacoustic Musics: The

"The Southern Tip of the Electroacoustic Tradition"

Ontario Infant Hearing Program Hörsysteme mit ... · "Speechmap"-Funktion von Verifit möglich, aber nicht mit dem "MPO"-Test. Verifit misst mithilfe eines Sprachsignals (inklusive

The Electroacoustic Music of Iannis Xenakis - Harley CMJ

Introduction to Electroacoustic Music - Brian Bridgesbrianbridges.net/.../2014/05/Introduction-to-Electroacoustic-Music.pdf · composition or, later used for B-movie music and special