• Electronics and Telecommunications Trends
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• v.30 no.4
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• pp.140-150
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• 2015

모바일 트래픽 증대는 향후 급격히 증가할 것으로 예측되며 LTE에서 AII-IP기반의 고속 대용량 데이터처리는 망의 부하증가를 의미한다. 비디오 컨퍼런싱, 온라인 음악, 게임, 영화 스트리밍, 네트워크 브라우징, 블로깅 등 현재 온라인 상에서 급격하게 사용되고 있는 새로운 애플리케이션들은 높은 대역폭(Bandwidth)과 고속용량이 필요하고 망 운용자들은 대역폭과 네트워크 용량 한계점을 줄이기 위한 해결책에 관심을 갖게 되었다. 이를 위해 3GPP에서는 데이터 오프로딩(Data Offloading) 기술을 정의하였으며 이는 펨토셀과 non-3GPF액서스 망 등과 정합하는 기술을 제공하였다. 본고에서는 망의 부하를 줄이기 위한 이들 오프로딩 기술에 대한 요구사항, 구조 및 구현 시 고려해야 하는 주요 이슈들에 대해서 살펴본다.

• Journal of Music and Human Behavior
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• v.20 no.1
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• pp.99-115
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• 2023

Given the ongoing discussion regarding remote music therapy following the COVID-19 pandemic and the pivotal role of parental involvement in it, this study investigated parents' perceptions on their roles in a synchronous videoconferencing music therapy for their children with developmental disabilities. A total of 32 participants participated in an online survey comprising 68 questions. Descriptive statistics summarized the collected responses, and Pearson's correlation was conducted to examine the relationship between perceived parental roles, psychological burden, and willingness to participate in future remote music therapy. The findings showed that parents of children with developmental disabilities acknowledged the benefits of tele-music therapy and possessed substantial information about its implementation. Furthermore, they reported their roles of providing physical, participatory, and mediating support. As parents exhibited greater satisfaction with their role in supporting their children's participation or managing their off-task behaviors, they perceived reduced psychological burden. These findings hold significant implications for expansion of tele-music therapy strategies to address the unique needs of children with developmental disabilities and support their parents as immediate mediators for their children.

• Digital Contents
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• no.2 s.141
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• pp.72-74
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• 2005

지치고 스트레스 쌓일 때, 간단하게 한 게임 하러 들어갔다가 오히려 스트레스만 더 쌓인 체 돌아온 경험이 누구에게나 있을 것이다. 하지만 신나는 음악과 화려한 춤들로 하루의 스트레스를 확실히 해소해 주는 온라인게임이 등장했다. T3엔터테인먼트에서 개발해 엠파스게임나라를 통해 서비스되고 있는‘오디션’이바로 그것이다. 현재 온게임넷 비비빅을 통해 방송되고 있기도 한 오디션에 대해 살펴봤다

• Digital Contents
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• no.5 s.156
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• pp.58-63
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• 2006

모바일음원콘텐츠는 모바일서비스와 함께 시작된 콘텐츠로 서비스 초기에 많은 CP들이 참여하여 급격한 시장 확대를 이루어 냈으나 2004년부터 성장이 멈추고 경쟁이 극심해져 많은 CP가 도태되는 부익부 빈익빈 단계로 접어들었다. 모바일음원콘텐츠의 경우, 최근 MP3폰의 보급이 확대되면서 온라인음악이라는 새로운 시장 개척이 활발해져 시장 확대에 기여를 하고 있으나 이동통신사의 매출증대에만 기여할 뿐 CP들의 매출에는 영향이 거의 없는 것으로 분석되고 있다.

• Digital Contents
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• no.6 s.109
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• pp.118-121
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• 2002

디지털 콘텐츠는 영상, 소리(음향ㆍ음악)문자 등 다양한 요소로 이뤄져 있다. 이런 디지털콘텐츠가 온라인을 통하여 유통되는 데에는 여러 가지 요소가 융합되어야 가능하다. 일단 구매가 된 다음에도 디지털콘텐츠는 복제가 가능해 불법적으로 유통되는 단점이 있다. 이 때문에 디지털콘텐츠의 보호기술이 등장하게 되었다. 물론 법적으로 보호장치가 있긴 하지만 일일이 단속할 수 없고 단속이 불가능하기 때문에 불법복제 자체를 방지하는 기술이 등장하게 된 것이다. 이에 디지털콘텐츠 보호기술에 대하여 살펴보기로 한다

• Journal of the Korea Convergence Society
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• v.11 no.8
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• pp.139-145
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• 2020

Due to the rapid development of computer technology, online learning using ICT technology is already quickly settling in our lives. Music education was conducted mainly in an offline-based environment, but research is being conducted to switch to online because there is no time and space constraint of online education and interactive education led by learners is possible. In this study, we propose design and implement an adaptive learning system to enable adaptive learning online among music education. This system has the following advantages. First, by providing an LMS-based platform, one can solve the social education problem corresponding to economic and geographical factors. Second, both objective learning feedback provided automatically by the online adaptive harmony learning system and teaching feedback. Third, learners can be provided with recommended answers to given harmony exercises. The adaptive online learning system of harmony will lead professors and learners to effectively teach and study.

• Journal of Music and Human Behavior
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• v.19 no.1
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• pp.93-112
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• 2022

The purpose of this study was to compare participants' perceived emotion following harmonic changes in music. In this study, 144 participants, aged 19 to 29 years, listened to music online that included low to high harmonic progression in tonal music (major-minor). After listening to each piece of music, participants were asked to rate 4 items using a 7-point Likert scale: emotional potency, arousal, degree to which the harmony impacted the listener's emotions, and listener's preference for the music. There were significant differences between each of the four items upon the level of harmonic progression. When the participants were divided into two groups (i.e., those with a background in music and those with no background in music), there was a significant difference between the groups in terms of emotional potency, but there was no significant interaction effect. This study confirmed that various emotional responses in listeners can be induced by controlling the exogenous variables in musical excerpts. Based on this, it is expected that the harmonic progression level can be provided to the client to be used as an effective therapeutic tool in music therapy intervention.

• The KIPS Transactions:PartC
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• v.16C no.6
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• pp.681-690
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• 2009

Nowadays, the music industry is moving from analog to digital. Most of the big portal sites provide commercial online music streaming services according to the tendency. In this paper, we analyze the security of the Korean commercial online music streaming services which are provide by the Korea's major portal sites(Dosirak, Cyworld, and Naver). Moreover, we show attacks on commercial online music streaming services that lead to an infringement of copyright and propose technical countermeasures for online commercial music streaming services, the contributions of the present work are that the measures protect the copyright of the music.

• The Journal of the Acoustical Society of Korea
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• v.40 no.5
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• pp.439-451
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• 2021

We propose a deep learning-based beamformer combined with spectral subtraction for continuous speech recognition operating in noisy environments. Conventional beamforming systems were mostly evaluated by using pre-segmented audio signals which were typically generated by mixing speech and noise continuously on a computer. However, since speech utterances are sparsely uttered along the time axis in real environments, conventional beamforming systems degrade in case when noise-only signals without speech are input. To alleviate this drawback, we combine online beamforming algorithm and spectral subtraction. We construct a Continuous Speech Enhancement (CSE) evaluation set to evaluate the online beamforming algorithm in noisy environments. The evaluation set is built by mixing sparsely-occurring speech utterances of the CHiME3 evaluation set and continuously-played CHiME3 background noise and background music of MUSDB. Using a Kaldi-based toolkit and Google web speech recognizer as a speech recognition back-end, we confirm that the proposed online beamforming algorithm with spectral subtraction shows better performance than the baseline online algorithm.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.9 no.2
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• pp.65-71
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• 2009

The end of the 1990s due to the rapid development of Internet communications and two-way communication advertising, public relations, online music, video, movies, e-Book, and distribution of digital content is actively underway. The combination of Internet and TV, as well as born of IPTV and interactive digital content industry's future has become a key industry. However, these two-way communication that illegal adult sites, illegal Bulletin, illegal Ads, PR, shopping mall, illegal music copying, video replication, such as negative due to the emergence of IPTV and is always around us and should be recognized. For example, on the Internet, which has been operating in the ocean sounds from the music copyright issue, the prosecution decided to prosecute because of the digital cultural content, copyright issues has become an important issue. Status and issues of this paper to learn the digital content, using intelligence to solve these problems, two-way communication advertising, public relations and practice of digital content, practices and courses of students vulnerable to offers for the analysis simulation.