• Proceedings of the Korean Information Science Society Conference
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• 2004.10a
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• pp.328-330
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• 2004

인터넷 환경에서 디지털 콘텐츠의 수요는 폭발적으로 증가하고 있으나 복제의 용이성으로 인해 콘텐츠의 불법 유통이 큰 사회적 이슈로 논의되고 있다. 따라서 저작권 보호 수단 중 가장 많이 쓰이는 DRM 기술이 필요하다. 본 논문은 디지털 응원(MP3)의 불법 복제를 방지하고 저작권 보호를 위해 DRM 시스템을 적용한 전자상거래 시스템을 설계하였다. 128비트 대칭키 암호화 기법인 SEED를 사용하여 디지털 콘텐츠를 암호화하고 사용자가 오프라인에서 디지털 콘텐츠 재생할 때 다운로드 방식과 스트리밍 방식의 중간 단계인 하이브리드 방식으로 재생하여 불법 복제로부터 음원을 보호할 수 있다 XrML 명세언어 사용으로 사용권한을 정의하고 재인증 기법으로 사용자 시스템 변경시 사용자의 권한을 보존해 준다

• Proceedings of the Korea Contents Association Conference
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• 2019.05a
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• pp.245-246
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• 2019

본 연구의 목적은 실용음악 전공자와 비전공자 간의 귀벌레 증후군 유발 정도 차이와 음악 차트 순위와의 상관관계를 분석한 것이다. 이를 통해 음악 차트 순위의 이용성을 관찰하는 기초 자료를 제시하고자 했다. 본 연구에 대한 자료를 요약하면 다음과 같다. 첫째, 음악 차트 순위와 귀벌레 증후군 유발 정도 간에는 상관관계가 없는 것으로 나타났다. 둘째, 이와 같은 귀벌레 증후군을 경험하는데 있어서 선율의 반복도, 가사의 반복도, 음원을 접하는 횟수 순으로 영향이 높은 것으로 나타났다. 셋째, 실용음악 전공자의 경우 비전공자보다 귀벌레 증후군을 겪는 빈도가 높지만 그 차이는 미미한 것을 알 수 있었다. 본 연구는 연구결과를 통해 귀벌레 증후군의 유발 정도와 음원 차트 순위는 연관성이 없으나, 음원의 구성 요소와 음원 자체에 노출되는 정도가 많을수록 귀벌레 증후군을 경험할 가능성이 높아지므로, 이러한 두 가지 사실을 통하여 음악의 차트 상의 순위가 높은 정도와 대중들이 그 음악을 접하게 되는 정도가 동일하지 않을 수도 있다는 시사점을 제시하였다.

• Digital Contents
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• no.4 s.119
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• pp.112-117
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• 2003

소비자의 욕구인 '개성' 및 '차별성'에 맞추어 보면, 일방적으로 CP에 의해서 제공되는 보편적인 이미지보다는 본인이 직접 만들고, 본인 취향에 맞춘 모바일 콘텐츠를 추구하는 게 당연한 현실이다. 사용자가 만든 음원을 자신의 폰에서 사용하는 기능도 서비스되고 있으며, 사용자가 간단한 이미지 편집을 통해 바탕화면이나 메시지 발송 용도로 사용할 이미지 혹은 영상을 만드는 서비스도 조만간 열릴 예정이다.

• Journal of the Korea Society of Computer and Information
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• v.26 no.2
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• pp.45-52
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• 2021

In this paper, we propose a method of generating theme, background amd signal music usage monitoring information based on a blockchain, in which the music usage informations are recorded by the monitoring tool using feature-based filtering of monitoring organizations. Theme, background and signal music are music inserted into the broadcasting contents of broadcaster. Since they are recognized as created contents just like normal music, there are lyricists and composers who have the right for those music and all copyright holders of them have to receive the corresponding copyright fees, once the music was used in the broadcast. However, there are problems with inaccurate monitoring results for music usage, due to the omission of usage details and non-transparent settlement method. In order to solve these problems, If the information generation method proposed in this paper, accurate music usage history can be created, the details are stored in the blockchain without changes or omissions, and transparent settlement and distribution are possible by smart contract, avoiding the current non-transparent settlement method.

• The Journal of the Korea Contents Association
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• v.10 no.8
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• pp.130-137
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• 2010

An advancement and wide use of portable multimedia devices make it easy to spread digital sound source, enabling users to use portable multimedia devices and search and enjoy digital sound sources and related contents. In opposition the off-line musical service market with CD stagnates gradually and in the crisis where the off-line musical service market vanishes away. In this paper, we propose the mobile music album information retrieval system which combines the barcode and a cellular phone musical service. To get digital sound sources and related information from music albums, the proposed retrieval system uses one-dimensional barcodes attached to music albums and obtains information on related albums from the sound source servers. Also, to reflect user preferences in search results, the system uses search frequency by music album, and searches albums in music genres selected by users in the order of the recent preference. The proposed mobile music album retrieval system is implemented on the basis of WIPI, and is now providing pilot services.

• Journal of Digital Contents Society
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• v.18 no.6
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• pp.1025-1032
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• 2017

Recently the domestic popular song market has been growing mainly in digital sound sources. As a result of analyzing the top 100 music charts from 2012 to 2016 through digital sound sources and musical scores, the average annual BPM has fallen by 11.26 over five years. Every year, The style of music has diversified every year, and the proportion of Hip-hop has doubled from 8.5% in 2012 to 17.8% in 2015. Dance music and ballads have a high preference rate, but the relationship is inversely proportional. Singer composition was inversely proportional to the ratio of female solo to male group. Especially, the relationship between BPM and the Major/Minor key is that 81.42% for slow tempo songs is Major key and 53.85% for fast tempo songs is minor key. In the case of TV drama OST, the solo singer 's music was preferred, the music style was 80% pop and 20% ballad.

• The Journal of the Korea Contents Association
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• v.10 no.4
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• pp.91-97
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• 2010

Recently, Internet users have an interest about Social Media Service in Web2.0 environment. We suggest the orchestra service as social media service to meet user satisfactions in changed web environment. We accept a concept of the MMMD (Multiple Media Multiple Devices). In other words, Internet users listen to the music not only one device but multiple devices. Each one of multiple devices can play a sound source under earmark instruments for providing users with actual feeling like an orchestra. To meet the purpose, we define 3 steps. First, we separate the sound source based on instrument information. Second, we exact the suitable sound source for play orchestra. In final step, the sound source transmits to each suitable playing device. We named the 3 step for AET process. Beside we suggest synchronization method using rest point in the MIDI file for control sound sources. Using the AET process and synchronization method we provide the orchestra service for meet user's satisfactions to users.

• Journal of the Korea Society of Computer and Information
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• v.15 no.11
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• pp.91-99
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• 2010

Recently, recognizing user resource for personalized service has been needed in digital content service fields. Especially, to analyze user taste, recommend music and service music related information need recognition of user music file in case of online music service. Music related information service is offered through recognizing user music based on tag information. Recognition error has grown by weak points like changing and removing of tag information. Techniques of content based user music recognition with music signal itself are researched for solving upper problems. In this paper, we propose user music recognition on the internet by extracted feature from music signal. Features are extracted after suitable preprocessing for structure of content based user music recognition. Recognizing on music server consist of feature form are progressed with extracted feature. Through this, user music can be recognized independently of tag data. 600 music was collected and converted to each 5 music qualities for proving of proposed recognition. Converted 3000 experiment music on this method is used for recognition experiment on music server including 300,000 music. Average of recognition ratio was 85%. Weak points of tag based music recognition were overcome through proposed content based music recognition. Recognition performance of proposed method show a possibility that can be adapt to online music service in practice.

• Digital Contents
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• no.10 s.161
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• pp.27-29
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• 2006

• Journal of Digital Contents Society
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• v.18 no.8
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• pp.1495-1500
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• 2017

The animation "Gloom" based on the low poly art expresses the intention of the production by expressing an music as an animation. The paper describe the production process including the modeling, rigging, animation, and rendering. Furthermore, the production process for pure creative animation with client's intention was also considered. Therefore, it can provide guidelines for pure creators who do similar creative work.