• Title/Summary/Keyword: On-line Music

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Score Image Retrieval to Inaccurate OMR performance

  • Kim, Haekwang
    • Journal of Broadcast Engineering
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    • v.26 no.7
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    • pp.838-843
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    • 2021
  • This paper presents an algorithm for effective retrieval of score information to an input score image. The originality of the proposed algorithm is that it is designed to be robust to recognition errors by an OMR (Optical Music Recognition), while existing methods such as pitch histogram requires error induced OMR result be corrected before retrieval process. This approach helps people to retrieve score without training on music score for error correction. OMR takes a score image as input, recognizes musical symbols, and produces structural symbolic notation of the score as output, for example, in MusicXML format. Among the musical symbols on a score, it is observed that filled noteheads are rarely detected with errors with its simple black filled round shape for OMR processing. Barlines that separate measures also strong to OMR errors with its long uniform length vertical line characteristic. The proposed algorithm consists of a descriptor for a score and a similarity measure between a query score and a reference score. The descriptor is based on note-count, the number of filled noteheads in a measure. Each part of a score is represented by a sequence of note-count numbers. The descriptor is an n-gram sequence of the note-count sequence. Simulation results show that the proposed algorithm works successfully to a certain degree in score image-based retrieval for an erroneous OMR output.

Design and Implementation of the Effective Staff-Line Recognition Using Tilt-Correction Through Preview Analysis (프리뷰 분석에 기반한 악보 기울기 보정을 통한 효과적인 오선 인식 기법의 설계 및 구현)

  • Kim, Seongryong;Kim, Taehee;Kim, Misun;Lee, Boram;Kim, Geunjeoung;Lee, Sangjun
    • Journal of IKEEE
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    • v.18 no.3
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    • pp.362-367
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    • 2014
  • Music score recognition applications running on a smartphone, which is one of the necessities of modern people, have already been released on the market. These applications have the several limitations, especially the recognition rate of printed music scores is low so that many errors occur when the score is played. The major factor to decrease the recognition rate comes from poor tilt-correction of the captured staff-line. In this paper, we propose a efficient method that can automatically shoot the printed music score through preview analysis, which increases the recognition rate via tilt-correction.

Dynamics of Facial Subcutaneous Blood Flow Recovery in Post-stress Period

  • Sohn, Jin-Hun;Estate M. Sokhadze;Lee, Kyung-Hwa;Lee, Jong-Mi;Park, Mi-Kyung;Park, Ji-Yeon
    • Proceedings of the Korean Society for Emotion and Sensibility Conference
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    • 2000.11a
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    • pp.62-68
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    • 2000
  • The aim of the study was to compare effects of music and white noise on the recovery of facial blood flow parameters after stressful visual stimulation. Twenty-nine subjects participated in the experiment. Three visual stimulation sessions with aversive slides (the IAPS, disgust category) were followed by subjectively "pleasant" (in the first session), "sad" music (in the second ), and white noise (in the third ). Order of sessions was counterbalanced. Blood flow parameters (peak blood flow, blood flow velocity, blood volume) were recorded by Laser Doppler single-crystal system (LASERFLO BPM 403A) interfaced through BIOPAC 100WS with AcqKnowledge software (v.3.5) and analyzed in off-line mode. Aversive visual stimulation itself decreased blood flow and velocity in all 3 sessions. Both "pleasant" and "sad" music led to the restoration of baseline levels in all blood flow parameters, while noise did not enhance recovery process. Music on post-stress recovery had significant change in peak blood flow and blood flow velocity, but not in blood volume measures. Pleasant music had bigger effects on post-stress recovery in peak blood flow and flow velocity than white noise. It reveals that music exerted positive modulatory effects on facial vascular activity measures during recovery from negative emotional state elicited by stressful slides. Results partially support the undoing hypothesis of Levenson (1994), which states that positive emotions may facilitate process of recovery from negative emotions.

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A Study on the Effects of Entry of Mobile Business Company to On-line Contents Market (이동통신사의 콘텐츠 시장 진입에 따른 영향과 정책과제)

  • Kim, Yong-Hwan
    • International Commerce and Information Review
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    • v.7 no.4
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    • pp.287-303
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    • 2005
  • Mobile Business Companies open its music service and enters into the contents market. The entry of mobile business companies will be able to give diverse benefits to consumer. But, M&A between mobile business companies and contents companies may bring decreasing effect of number of creative industries. For the protection of small company producing cultural contents in contents market, fair transection competition order should be improved as soon as possible.

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On-Line Two-Dimensional Conducting Motion Analysis (실시간 이차원 지휘운동의 해석)

  • ;;;Zeung nam Bien
    • Journal of the Korean Institute of Telematics and Electronics B
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    • v.28B no.11
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    • pp.876-885
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    • 1991
  • This paper proposes an on-line method of understanding humans conducting action observed through a vision sensor. The vision system captures images of conducting action and extracts image coordinates of endpoint of the baton. A proposed algorithm based on the expert knowledge about conducting recognizes patterns of the conducting action from the extracted image coordimates and play the corresponding music score. Complementary algorithms are also proposed for identifying the first beat static point and dynamics through extensive experiments, this algorithm is found to detect lower edges and upper edges without error.

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Secondary Path Estimation Algorithm Based on Residual Music Canceller for Noise Cancelling Headphone (노이즈 캔슬링 헤드폰에 적합한 잔여 음악 제거기 기반의 2차 경로 추정 알고리즘)

  • Ji, Youna;Lee, Keunsang;Park, Youngcheol
    • The Journal of the Acoustical Society of Korea
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    • v.34 no.5
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    • pp.377-384
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    • 2015
  • An active noise control (ANC) algorithm for noise canceling headphone is proposed. In this study, the feedback ANC operated with the filtered-x least mean square algorithm (FxLMS) algorithm is used to attenuate the undesired noise. Also an adaptive residual music canceller (RMC) is proposed for enhancing the accuracy of the reference signal of the feedback ANC. Simulation results show that a high quality of music sound can be consistently achieved in a time-varying secondary path situation.

Performance Comparison of Feature Parameters and Classifiers for Speech/Music Discrimination (음성/음악 판별을 위한 특징 파라미터와 분류기의 성능비교)

  • Kim Hyung Soon;Kim Su Mi
    • MALSORI
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    • no.46
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    • pp.37-50
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    • 2003
  • In this paper, we evaluate and compare the performance of speech/music discrimination based on various feature parameters and classifiers. As for feature parameters, we consider High Zero Crossing Rate Ratio (HZCRR), Low Short Time Energy Ratio (LSTER), Spectral Flux (SF), Line Spectral Pair (LSP) distance, entropy and dynamism. We also examine three classifiers: k Nearest Neighbor (k-NN), Gaussian Mixure Model (GMM), and Hidden Markov Model (HMM). According to our experiments, LSP distance and phoneme-recognizer-based feature set (entropy and dunamism) show good performance, while performance differences due to different classifiers are not significant. When all the six feature parameters are employed, average speech/music discrimination accuracy up to 96.6% is achieved.

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A Study on the Remodeling of The Training Center for Performers of Korean Traditional Music(Studio 'Byeol') for Historicity Conservation (역사성 보존을 위한 구 국악사양성소(별오름극장)의 리모델링에 관한 연구)

  • Lee, Wan-Geon
    • Korean Institute of Interior Design Journal
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    • v.19 no.5
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    • pp.165-172
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    • 2010
  • Recently, the recognition is changing about cultural heritage, and the various types of buildings or facilities of modern or contemporary times have been designated as cultural properties after that Registered Cultural Properties System is enforced. The purpose of this study is to survey how the newly born the historic buildings of modern or contemporary times through the remodeling process of the Studio 'Byeol'(the Training Center for Performers of Korean Traditional Music) in the National Theater of Korea so-called a microcosm of performing arts history. In the process, it will examine the merits and demerits of various alternatives and the direction of the remodeling etc., and propose an utilization as a basic data of post evaluation for the remodeling of a historic building. The result are as followings. Firstly, the remodeling that gave a new physical properties to a building can be used a method of conservation and reuse on a historic building. The remodeling of a historic building must be eclectically progress between the owner and the citizen or the economic value and the historicity conservation. And, the remodeling of historic buildings such as the Training Center for Performers of Korean Traditional Music must consider the conservation of the exterior walls in whole or in part at least. Secondly, an architect Lee Hee Tae(李喜泰) who had been to develop his own architectural vocabulary and to test based on the korean traditional architecture and the Training Center for Performers of Korean Traditional Music must be newly evaluated today. Lastly, the remodeling alternatives of the Training Center for Performers of Korean Traditional Music have been analyzed with three types, which is 'repairing only the interior which maintains the size and an appearance of present', 'extending the outer wall to the external column line', 'extending the basement'. And, it was analyzed with the appropriate final decision that it remodels only the interior in the current situation because of a historicity, a budget, a relevant law etc.

A Study on Instructional Design Model of Music Education Applying Flipped Learning in Elementary School (플립러닝(Flipped Learning)을 적용한 초등학교 음악과 교수설계 방안 연구)

  • Park, Jeong Hye;Lee, Dong Yub
    • The Journal of the Convergence on Culture Technology
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    • v.8 no.1
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    • pp.307-312
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    • 2022
  • In line with the 4th industrial revolution and the innovative changes of the 21st century knowledge and information society, the education field where the 2015 revised curriculum is applied is facing a situation where it is necessary to consider various teaching and learning methods. Among them, interest in instructional design applying flipped learning suitable for future education is growing, but studies on classes using flipped learning in actual music and education are rare. In general music classes currently conducted in the elementary education field, it is insufficient to learn the musical function targeted in the class. Therefore, this study developed and validated an instructional design model for elementary school music and classes that applied flipped learning based on the ADDIE model, which is a systematic instructional design model, using the design and development research methodology. Based on the developed instructional design model, major issues for each stage were presented, and major educational implications in the development process were discussed.

The Effects of Auditory Stimulus Using Music on Unilateral Neglect in Patients With Stroke: A single-subject design (음악을 통한 청각자극이 만성 뇌졸중 환자의 편측무시에 미치는 영향: 단일대상연구)

  • Park, Jin-Hyuck;Park, Ji-Hyuk;Park, Hae-Yean
    • Therapeutic Science for Rehabilitation
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    • v.5 no.1
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    • pp.33-42
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    • 2016
  • Objective : The purpose of this study was to verify the effects of auditory stimulus using music on unilateral neglect in patients with stroke. Methods : This study used a single subject (ABA) design. The subject who showed unilateral neglect caused by stroke received auditory stimulus using music for 60 minutes per sessions. A total of 20 sessions were conducted. The unilateral neglect was measured by the Star cancellation test and Line bisection test during each session, and Catherine Bergego Scale was used to evaluate the degree of unilateral neglect in daily life pre-and post-test. Also, Positive Affect and Negative Affect Schedule was used to test subject's emotional status. Results : During the intervention period, the results of the Star cancellation test and Line bisection test showed the trend of reduction of unilateral neglect symptom and the effects of intervention were maintained after intervention. After intervention, the results of CBS indicated decreased unilateral neglect symptom in activities of daily living and the results of PANAS indicated increased positive affect. Conclusions : The result of this study indicate that auditory stimulus has a positive effect on the unilateral neglect, and may be considered as alternative choice in clinical occupational therapy for reducing unilateral neglect.