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심상익,이정학 한국청각언어재활학회 2005 Audiology and Speech Research Vol.1 No.1
청각손실자에게 적절한 증폭을 통해 의사소통에 도움을 주고자 하는 목적으로 보청기가 개발된 이래, 지금까지도 꾸준하게 연구되고 있는 논제중의 하나는 보청기를 통해 신호 대잡음비(signal to noise ratio, SNR)를 개선하는 것이다. 이는 소음상황, 즉 신호대잡음비가 낮은 곳에서 청각장애가 없는 사람에 비해, 청각 장애인은 보청기를 착용 했음에도 불구하고 어음인지력이 떨어진다. 따라서 소음속에서 어음 인지력의 향상을 위해서는 적절한 증폭뿐만 아니라 신호대 잡음비를 개선하는 것이 필수적이다. 신호대잡음비를 개선하기 위한 노력으로는 1990년대 후반부에 디지털기술이 보청기에도 적용되면서 다채널 혹은 소음감소기능 등의 여러 가지 기술들이 보청기에 접목되고 있으며, 여러 가지 청각보조기구(assistive listening devices, ALDs)도 사용되고 있다. 이와 같이 신호대잡음비를 향상 시킬 수 있는 여러 가지 기술 중에서 비교적 쉽고 효율적인 방법 중의 하나로 방향송화기를 들 수 있다. 방송화기는 1960년대 후반에 한 개의 송화기 몸체에 2개의 음구를 설치한 방식이 처음으로 보청기에 도입되었으며, 1970년대부터 미국에서 상품화되기 시작하였다. 그 후 방향송화기를 장 착한 보청기는 1980년까지 점진적으로 증가하다가, 귓속형(in-the-ear, ITE)보청기의 개발과 선호도가 상승하면서 점차 감소하였다. 그러나 2000년대에 방향송화기의 기능과 성능이 향상됨에 따라서 보청기 제조사와 청각전문가에게
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MarkeTrak을 기반으로 한 미국의 보청기 만족도 및 시장동향 고찰
심상익,김진숙 한국청각언어재활학회 2019 Audiology and Speech Research Vol.15 No.1
Although there are researches for hearing aid (HA) satisfaction and market trends in USA, MarkeTrak (MT) and Europe, EuroTrak (ET), such could not be found in Korea with increasing demands of HAs. The purpose of this investigation was to establish a systematic base of Korean HA research reviewing MT, which is a good example of HA market trends and satisfaction analysis. Classifying 4 themes, HA features, HA utilities, psycho-social factors, financial factors, MT issues were from 1984 to 2015. The contents included specifically analyzed the main themes, the major considerations for the current HA market, and the factors improving HA satisfaction rates. According to a survey, HA adoption rate has grown by 6.4% in the USA over 30 years while HA satisfaction rate has increased by 21.4%. The reason for the low adoption rate was reported that the primary motivation to purchase HA was the deterioration of hearing of the individual consumer. The increased satisfaction rate was attributed to the advanced technology that resolved the discomfort factors such as background noise and cosmetic concerning. In addition, the distributing agency of HAs was changed from general dispensers to the audiologists who were professionally educated. MT has put a great impact on investigating HA market in the USA. As Korean HA markets are increasing, it is necessary for the development of KoreaTrak (as the assumed name) such as MT or ET.
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심상익,김진숙 한국청각언어재활학회 2019 Audiology and Speech Research Vol.15 No.3
Purpose: The purpose of this study was to analyze the current statuses of hearing aid centers and markets in Korea through surveys and to provide the element understanding about the basic structure of the hearing aid distribution. Methods: A survey was conducted with a questionnaire developed. A total of 30 items in six categories, basic situations of hearing aid center including scale and circumstances, opening motivation and handling brands, sales status, marketing promotion and opinions of the current hearing aid market. 114 responses were acquired and analyzed. Results: Any certificates for evaluation and rehabilitation of hearing aids were held by 74.6% of all participants. Among them, 67.5% have the audiological certificate presented by Audiological Testing Service, which is the main facility of the Korean audiologists who were educated properly. The average selling price of hearing aids was found to be around 1.5 million won. 34.2% of centers sold less than 10 units, while 21.1% sold more than 25 units monthly. 71.7% of the respondents answered that it is necessary to have an officially approved license for hearing aid sales. Also, it was pointed out that overheated price competition among centers was problem. Conclusion: This study broadened the understanding of Korean hearing aid centers and markets and provided the index for developing the hearing aid market-related policies. This kind of research should be carried out continuously to systematize the hearing aid market and resolve the emerging social problems of the people who use hearing aids such as the aged population.
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