• Title/Summary/Keyword: Source Change

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A Study on the Voice Conversion Algorithm with High Quality (고음질을 갖는 음색변경에 관한 연구)

  • 박형빈;배명진
    • Proceedings of the IEEK Conference
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    • 2000.09a
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    • pp.157-160
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    • 2000
  • In the generally a voice conversion has used VQ(Vector Quantization) for partitioning the spectral feature and has performed by adding an appropriate offset vector to the source speaker's spectral vector. But there is not represented the target speaker's various characteristics because of discrete characteristics of transformed parameter. In this paper, these problems are solved by using the LMR(Linear Multivariate Regression) instead of the mapping codebook which is determined to the relationship of source and target speaker vocal tract characteristics. Also we propose the method for solved the discontinuity which is caused by applying to time aligned parameters using Dynamic Time Warping the time or pitch-scale modified speech. In our proposed algorithm for overcoming the transitional discontinuities, first of all, we don't change time or pitch scale and by using the LMR change a speaker's vocal tract characteristics in speech with non-modified time or pitch. Compared to existed methods based on VQ and LMR, we have much better voice quality in the result of the proposed algorithm.

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A Basic Study for Spacial Re-Organization of the Elementary School (초등학교의 공간 재구조화를 위한 기초적 연구)

  • Park, Yoon-Gum;Cho, Sung-Ki
    • Journal of the Korean Institute of Educational Facilities
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    • v.5 no.2
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    • pp.5-15
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    • 1998
  • The purpose of this study is to attain basic source for spacial re-organization of the elementary school. This is the first step of some series of the study, For purpose, some investigations is to grasp the change of education system, curriculum and the present condition of institution were done, and some questions on the using condition of space, the satisfaction and the hope for the space of their school were asked to 371 teachers in elementary school, by questionnaire and interview methods. The result of the survey was analyzed using a statistics-analysis program SAS. The results are summarized as follows: 1) Corridor is using to extend of learning and living space. 2) To correspond to open education, various comers are placed in the classroom and the corridor. 3) As the change of educational system, teachers need parting the source center and the teacher's room.

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proposals for enhancing the current HS-DSCH serving cell change procedure for UE mobility (향상된 HS-DSCH serving cell change procedure 제안)

  • Cheong, Young-Hoon
    • Proceedings of the IEEK Conference
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    • 2008.06a
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    • pp.273-274
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    • 2008
  • According to current RRC procedures, network does not know either how long it will take the RRC reconfiguration message (such as Physical Channel Reconfiguration (PCR)/Transport Channel Reconfiguration (TCR)/Radio Bearer Reconfiguration (RBR)) to be transmitted over the source cell or how long the UE will take to reconfigure on receiving the message, it has to assume the worst-case. Thus, it typically indicates a conservative activation time, leading to potentially large interruption for voice traffic, particularly if the source cell signal strength has degraded. This proposals allow the UE to receive the serving cell related information (carried today in PCR/RBR/TCR message) in an Active Set Update message.

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A Study on the Original Form and Change of Dokrak-dang and Gye-jeong (독락당과 계정의 원형과 변화과정 연구)

  • Kim, Dokyoung
    • Journal of architectural history
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    • v.23 no.5
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    • pp.23-36
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    • 2014
  • Source criticism is very important on the research of architectural history as well as general history. In this point this research studied on the original form and change of Dokrak-dang that is very important building in architectural history of Korea. The result is as in the following. Dokrak-dang that Whoijae built at first was three by two kans size that had daecheong of four kans and ondol-bang of two kans. Gye-jeong that Whoijae built was three kans size that had daecheong of two kans and ondol-bang of one kan. After Whoijae died, Dokrak-dang's ondol-bang was changed to maru between 1555 and 1556 and ondol-bang in west side and stack room was added in 1630. Gye-jeong was changed to ㄱ-shaped floor plan that was added up two kans from three kan's 'ㅡ'-shaped one.

A Study on Photoresist Stripping Using High Density Oxygen Plasma (고밀도 산소 플라즈마를 이용한 감광제 제거공정에 관한 연구)

  • Jung, Hyoung-Sup;Lee, Jong-Geun;Park, Se-Geun;Yang, Jae-Kyun
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.11 no.2
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    • pp.95-100
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    • 1998
  • A helical inductively coupled plasma asher, which produces low energy and high density plasma, has been built and investigated for photoresist stripping process. Oxygen ion density in the order of $10^{11}/cm^3$ is measured by Langmuir probe, and higher oxygen radical density is observed by Optical Emission Spectrometer. As RF source power is increased, the plasma density and thus photoresist stripping rate are increased. Independent RF bias power to the wafer stage provides a dc bias to the wafer and an ability to add the ion assisted reaction. At 1 KW of the source power, the coupling mechanism of the RF power to the plasma is changed from the inductive mode to the capacitive one at about 1 Torr. This change causes the plasma density and ashing rate decreases abruptly. The critical pressure of the mode change becomes larger with larger RF power.

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A Study on Driving Characteristics of combined Generation System 3kW Proto Type Photovoltaic/Wind Generation With Power Storage Apparatus (동력저장기능을 가지는 3kW proto type 태양광/풍력 복합발전시스템의 운전특성에 관한 연구)

  • Park, Se-Jun;Kang, Byung-Bog;Yoon, Jeong-Phil;Lim, Jung-Yeol;Cha, In-Su
    • Proceedings of the KIEE Conference
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    • 2002.11d
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    • pp.300-303
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    • 2002
  • Combined generation system of Photovoltaic and wind generation have shortcoming that is different output power according to change of weather. So, the combined generation system is required backup system that such as a storage battery to supply energy, when not enough photovoltaic and wind power source for power supply equally and continually because the energy source is changeable and stable through change of weather as irradiation. temperature, wind speed. wind direction. seasons, etc.

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Identification of Noise Source from Main Steam Line in Power Plant (발전소 주증기 배관 소음 발생 원인 규명)

  • Sohn, M.S.;Lee, J.S.;Lee, S.K.;Lee, W.R.;Lee, S.K.
    • Journal of Power System Engineering
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    • v.7 no.3
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    • pp.23-28
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    • 2003
  • In heavy nuclear power plant, high energy through main steam line is provided to turbine that generate the electric power. Since plant had generated power, high noise has been occurred. Noise make equipments and work environment worse. For finding out the location and the cause of making noise, noise was measured along main steam line at open/close test of Main Steam Isolation Valve (MSIV hereafter). As the result, it was identified that the vortex shedding in the cavity of MSIV is main noise source. The profile change of MSIV seat ring was proposed as the method of noise reduction. After filletting MSIV seat ring, the noise level reduced $10{\sim}20dB$ compared before the change of profile.

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Analysis of Field Noise from High Speed Train Using Dedopplerization (도플러 보정을 통한 고속열차 현장 측정 소음 분석)

  • Lee, Yong Woo;Lee, Duck Joo;Kwon, Hyeok Bin;Yun, Su Hwan
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.23 no.5
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    • pp.431-437
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    • 2013
  • Measured acoustic signal from operating high speed train contains frequency change called doppler shift due to its motion. To avoid this doppler shift wind tunnel test is required. But scaledown of model can cause change of source characteristics. And measurements using some part of train cannot reproduce real flow condition. The best way to recognize real noise source characteristics is measurement from operating high speed train but doppler shift makes it hard. So, we developed simple dedopplerization technique for one microphone and applied to field test data of high speed train. Through this, we could capture real frequency of noise from operating high speed train.

Analysis and Comparisons of Acoustical Characteristics of Pathologic Voice before and after Surgery (후두질환에 대한 술전 술후 음성의 음향적 특성비교 분석)

  • Kim, Dae-Hyun;Jo, Cheol-Woo;Baek, Moo- Jin;Wang, Soo-Geun
    • Speech Sciences
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    • v.7 no.3
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    • pp.285-294
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    • 2000
  • In this paper the acoustic characteristics of pathological voice, which are measured before and after surgical operation, are compared. This experiment is conducted for the purpose of predicting patients' speech after operation. The voices are recorded from the same patients. Jitter, shimmer and other parameters are. computed and their statistical characteristics are compared. Also spectral changes, such as formant frequency shift and spectral slope change, are compared. From the experimental results, it is verified that not only source characteristics but also vocal tract components vary. And this indicates that the modification of source parameters are not enough for the prediction. Also the result indicates that the operation causes change to both the physical shape of vocal folds and the manner of articulation.

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The study about the method for supervising sea contamination in Korean EEZ (한국 EEZ내 해양오염방지 방안에 관한 연구)

  • 양성모;진종관
    • Journal of Korea Port Economic Association
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    • v.19 no.1
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    • pp.113-138
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    • 2003
  • With it being inevitable to change the method of supervising as it is reorganized to EEZ coming out of the old concept of contamination in Korean area of the sea, it costs a lot to have good enough systems of total control for sea contamination and prevention of contamination as well as the effective marine superintendence because the governing bodies such as Ministry of Maritime Affairs and Fisheries, National Maritime Police Agency, and Authorities of Guiding Ships for Fishery, have their own source of laws and different ways to execute. In order to change such a wrong method of marine superintendence, it is necessary to conduct the merger and abolition of similar authorities with similar functions into authorities which are light but can be expected to play a major role, and to open the high-costing low-efficient organizations to make them remodel to be reborn as economical bodies. In addition to that, the maritime authorities, which are falling to incapable organizations not being able to work out any complicated tasks, have to be reborn as preventing bodies which take care of security and public peace and cut off a pollution source from sea and land.

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