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The Experts below are selected from a list of 198 Experts worldwide ranked by ideXlab platform

N. Nakamura – 1st expert on this subject based on the ideXlab platform

  • Development of “ MobileAudiometer ” for Screening using Mobile Phones
    The 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2004
    Co-Authors: N. Nakamura


    As we age, the functions of our body and sensory organs deteriorate. Diagnosis of hearing problems tends to be delayed and people put off wearing hearing aids as they are not aware of the deterioration and get used to paying little attention to their hearing difficulty. Adaptation of sound is necessary because sound quality perceived with hearing aids differs from that of normal sound. Detection of hearing problems at an earlier stage is important. An Audiometer that can screen persons with hearing loss easily at an early stage is necessary. In this paper, a prototype of the simple Audiometer as the Audiometer classified into type 4 for screening/monitoring purposes regulated in IEC standards, proposed in the previous research, is developed on the mobile phone by Java application program and ringing tones of mobile phones. The functions and performance of the prototype are verified along IEC standards.

  • Development of mobile audiometric test system using mobile phones
    IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003., 2003
    Co-Authors: N. Nakamura


    As hearing loss progresses gradually, people are not aware of the deterioration progress and get used to living with hearing difficulties, and delay wearing hearing aids. When starting to use hearing aids the adaptation of sound is necessary, since sound quality perceived at the current time differs from that of the former. Adaptation is highly effective at an early stage of slight hearing loss and accordingly the detection of hearing problems at an earlier stage is important. For these reasons, Audiometers are necessary which can easily screen persons with hearing loss progressing at an early stage. In this paper, an audiometric test system for screening purposes named MobileAudiometer was developed using the ringing tones, Java program of the mobile phone, and the server computer on the Internet. The present possibility of MobileAudiomcter as a regulated Audiometer was examined by verifying the function and the performance in terms of IEC standard. The results showed that there was the practicable possibility of mobile phones being applied to a simple audiometry for screening use.

Soogeun Wang – 2nd expert on this subject based on the ideXlab platform

  • an extension of pc based b e k e sy Audiometer to support client server model
    Journal of the Korea society of IT services, 2011
    Co-Authors: Bokdeuk Song, Deokhun Kang, Gyerok Jeon, Bumjoo Shin, Soogeun Wang


    The Bksy Audiometer is used to determine not only hearing threshold but also assumption of recruit phenomenon and cause of disease. However, current Bksy Audiometer takes an operational model, so called face-to-face model, in which model one audiometrist can assess only one subject at a time. As a result, the face-to-face model leads to high audiometrist`s labor cost and long waiting time when there exist many subjects. To improve such weakness, this paper extends PC based Bksy Audiometer to support client/server model in which model one audiometrist enables to concurrently access several subjects. As providing capabilities such as real-time transfer of assessment result, video monitoring of subject and video chat, the same effect as face-to-face model but overcomes weakness of face-to-face model.

  • development of linux based real time spectrum analyzer for puretone Audiometer
    The Korea Academia-Industrial cooperation Society, 2011
    Co-Authors: Deokhun Kang, Gyerok Jeon, Bumjoo Shin, Soogeun Wang


    Because the puretone Audiometer is an important medical instrument used to diagnose hearing loss, the IEC and ANSI has been published a specification with which Audiometer should comply. This paper describes development of Linux based real-time spectrum analyzer which is dedicated to puretone Audiometer. It can measure not only hearing level but also compliance of IEC standard for puretone Audiometer such as frequency accuracy, harmonic distortion, pulsed tone, narrow band noise and linearity. We have verified our real-time spectrum analyzer through comparing to commercial product.

  • development of automatic calibration system for pc based pure tone Audiometer
    The Korea Academia-Industrial cooperation Society, 2010
    Co-Authors: Deokhun Kang, Bokdeuk Song, Sookeun Kong, Soonbok Kwon, Gyerok Jeon, Bumjoo Shin, Soogeun Wang


    A pure tone Audiometer should be able to produce both pure tone and masking noise with exact sound pressure level and frequency. For such purpose, it is unavoidable to periodically calibrates pure tone Audiometer. However, manual acoustic calibration requires not only attention but also long time. It is possible to execute automatically calibration using software if it is PC-based pure tone Audiometer. In this paper, we describe auto-calibration software for PC-based pure tone Audiometer and dedicated sound level meter which has been implemented upon PC by us. To verify auto-calibration module, we examine whether output of PC-based Audiometer calibrated through auto-calibration of this paper satisfies RETSPL of IEC or not.

Gregg D. Givens – 3rd expert on this subject based on the ideXlab platform

  • Using web services to realize remote hearing assessment
    Journal of Clinical Monitoring and Computing, 2010
    Co-Authors: Gregg D. Givens


    Background. Internet-based tele-audiology is expected to relieve the dilemma between the lack of resources and high demand of audiological care services. This paper presents a web services based, distributed pure-tone hearing assessment system that improves accessibility of traditionally underserved groups to audiology care. Methods. The system employs browser-server network architecture to connect patients to audiology specialists through a web server where all application software is hosted. Software on the server is designed with a three-tier approach which makes the system scalable to include other audiological services. Hearing test data are stored in a standard database and can potentially be integrated into established electronic medical records. On the remote patient side, off-the-shelf Audiometers are adopted. The Internet connection of these Audiometers can be flexibly configured either with or without a computer. Two aspects of the system were tested: (1) the clinical effectiveness of the system: double-blinded experiments were conducted to assess hearing ability of 30 subjects and paired t -tests were utilized to compare assessment results from the remote approach and the conventional setup; and (2) to analyze the system bandwidth requirements, data traffic among the server, the Audiometer, and the audiologist terminal was examined with a network monitoring software (wireshark). Results . Paired t -test results have demonstrated that the remote hearing assessment is equivalent in effectiveness to its conventional counterparts at all tested frequencies ( P values are in the range of [0.12, 0.94]), and the bandwidth required by the system is less than 1 Mbps, falling within the capacity of average commercial Internet service subscription. Conclusions . The project developed a remote hearing assessment system based on services on a web server. The system minimizes hardware and software requirements on the audiologist’s computer and can be realized with regular Internet service subscription. Patient operations involved in hearing assessment are simple; making hearing test services more accessible to those otherwise may not be able to obtain the desired hearing care.

  • internet application to tele audiology nothin but net
    American Journal of Audiology, 2003
    Co-Authors: Gregg D. Givens, Saravanan Elangovan


    The Telehealth program at East Carolina University has developed a system for real-time assessment of auditory thresholds using computer driven control of a remote Audiometer via the Internet. The present study used 45 adult participants in a double-blind study of 2 different systems: a conventional Audiometer and an Audiometer operated remotely via the Internet. The audiometric thresholds assessed by these 2 systems varied by no more than 1.3 dB for air conduction and 1.2 dB for bone conduction. The results demonstrated the feasibility of this new “telehearing” audiometric system. With the rapid development of Internet-based applications, telehealth has the potential to provide important healthcare coverage for rural areas where specialized audiological services are lacking.