• Title/Summary/Keyword: TTS system

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A study on the Conceptual Architecture design of the Tube Transportation System considering performance parameters (성능변수를 고려한 화물용 튜브운송시스템 개념 아키텍처 설계에 관한 연구)

  • Choi, Yo Chul
    • Journal of the Korean Society of Systems Engineering
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    • v.6 no.2
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    • pp.29-35
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    • 2010
  • In general, an Architecture of a system is embodied as applied results of a requirement analysis of a system in early development phase. These efforts play a important role in analyzing and understanding a system considering operational, functional, and physical view and deriving a correct solution before developing the system. In this paper, the architecture of the Tube Transportation System(TTS) known as the new transportation system in Railway Domain is depicted by performance parameter has already developed. The existing performance parameters are shown by a variety of types with many meanings rather than types of general requirements refined. As these early performance parameters have analyzed and complemented to a level of requirement by requirement managers and other domain specialists, the architecture of the Tube Transportation System was developed systematically and then system requirements will be drawn up definitely. The presented architecture will provide a framework of developing a TTS and also offer an information in performance analysis of TTS.

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Characteristics of organic light-emitting diodes with AI cathode prepared by ITS system (TTS로 성막한 Al 캐소드를 가진 유기발광소자의 특성 분석)

  • Moon, Jong-Min;Lee, Sang-Hyun;Kim, Han-Ki
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2007.06a
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    • pp.74-75
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    • 2007
  • We report on the characteristics of organic light-emitting diodes with Al cathode deposited by specially designed twin target sputter(TTS) system. It was found that the Al cathode films grown by TTS system were amorphous structure with nanocrystallines due to low substrate temperature during sputtering process. Effective confinement of high-density plasma between two Al targets lead to low temperature sputtering process on organic layer. Moreover, organic light-emitting diodes with Al cathode deposited by TTS system exhibited low leakage current density of $4{\times}10^{-6}\;mA/cm2$ at -6 V indicating plasma damage due to bombardment of energetic particles such as ions and $\gamma$-electrons was effectively restricted in the ITS system. Sputtering method using ITS system is expected to be applied in organic electronics and flexible displays due to its low temperature and plasma damage free deposition process.

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A simple approach for the fundamental period of MDOF structures

  • Zhao, Yan-Gang;Zhang, Haizhong;Saito, Takasuke
    • Earthquakes and Structures
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    • v.13 no.3
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    • pp.231-239
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    • 2017
  • Fundamental period is one of the most critical parameters affecting the seismic design of buildings. In this paper, a very simple approach is presented for estimating the fundamental period of multiple-degree-of-freedom (MDOF) structures. The basic idea behind this approach is to replace the complicated MDOF system with an equivalent single-degree-of-freedom (SDOF) system. To realize this equivalence, a procedure for replacing a two-degree-of-freedom (2-DOF) system with an SDOF system, known as a two-to-single (TTS) procedure, is developed first; then, using the TTS procedure successively, an MDOF system is replaced with an equivalent SDOF system. The proposed approach is expressed in terms of mass, stiffness, and number of stories, without mode shape or any other parameters; thus, it is a very simple method. The accuracy of the proposed method is investigated by estimating the fundamental periods of many MDOF models; it is found that the results obtained by the proposed method agree very well with those obtained by eigenvalue analysis.

Implementation of Music Broadcasting Service System in the Shopping Center Using Text-To-Speech Technology (TTS를 이용한 매장 음악 방송 서비스 시스템 구현)

  • Chang, Moon-Soo;Kang, Sun-Mee
    • Speech Sciences
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    • v.14 no.4
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    • pp.169-178
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    • 2007
  • This thesis describes the development of a service system for small-sized shops which support not only music broadcasting, but editing and generating voice announcement using the TTS(Text-To-Speech) technology. The system has been developed based on web environments with an easy access whenever and wherever it is needed. The system is able to control the sound using silverlight media player based on the ASP .NET 2.0 technology without any additional application software. Use of the Ajax control allows for multiple users to get the maximum load when needed. TTS is built in the server side so that the service can be provided without user's computer. Due to convenience and usefulness of the system, the business sector can provide better service to many shops. Further additional functions such as statistical analysis will undoubtedly help shop management provide desirable services.

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A Study on Speech Synthesizer Using Distributed System (분산형 시스템을 적용한 음성합성에 관한 연구)

  • Kim, Jin-Woo;Min, So-Yeon;Na, Deok-Su;Bae, Myung-Jin
    • The Journal of the Acoustical Society of Korea
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    • v.29 no.3
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    • pp.209-215
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    • 2010
  • Recently portable terminal is received attention by wireless networks and mass capacity ROM. In this result, TTS(Text to Speech) system is inserted to portable terminal. Nevertheless high quality synthesis is difficult in portable terminal, users need high quality synthesis. In this paper, we proposed Distributed TTS (DTTS) that was composed of server and terminal. The DTTS on corpus based speech synthesis can be high quality synthesis. Synthesis system in server that generate optimized speech concatenation information after database search and transmit terminal. Synthesis system in terminal make high quality speech synthesis as low computation using transmitted speech concatenation information from server. The proposed method that can be reducing complexity, smaller power consumption and efficient maintenance.

One-shot multi-speaker text-to-speech using RawNet3 speaker representation (RawNet3를 통해 추출한 화자 특성 기반 원샷 다화자 음성합성 시스템)

  • Sohee Han;Jisub Um;Hoirin Kim
    • Phonetics and Speech Sciences
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    • v.16 no.1
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    • pp.67-76
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    • 2024
  • Recent advances in text-to-speech (TTS) technology have significantly improved the quality of synthesized speech, reaching a level where it can closely imitate natural human speech. Especially, TTS models offering various voice characteristics and personalized speech, are widely utilized in fields such as artificial intelligence (AI) tutors, advertising, and video dubbing. Accordingly, in this paper, we propose a one-shot multi-speaker TTS system that can ensure acoustic diversity and synthesize personalized voice by generating speech using unseen target speakers' utterances. The proposed model integrates a speaker encoder into a TTS model consisting of the FastSpeech2 acoustic model and the HiFi-GAN vocoder. The speaker encoder, based on the pre-trained RawNet3, extracts speaker-specific voice features. Furthermore, the proposed approach not only includes an English one-shot multi-speaker TTS but also introduces a Korean one-shot multi-speaker TTS. We evaluate naturalness and speaker similarity of the generated speech using objective and subjective metrics. In the subjective evaluation, the proposed Korean one-shot multi-speaker TTS obtained naturalness mean opinion score (NMOS) of 3.36 and similarity MOS (SMOS) of 3.16. The objective evaluation of the proposed English and Korean one-shot multi-speaker TTS showed a prediction MOS (P-MOS) of 2.54 and 3.74, respectively. These results indicate that the performance of our proposed model is improved over the baseline models in terms of both naturalness and speaker similarity.

A Study on Exceptional Pronunciations For Automatic Korean Pronunciation Generator (한국어 자동 발음열 생성 시스템을 위한 예외 발음 연구)

  • Kim Sunhee
    • MALSORI
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    • no.48
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    • pp.57-67
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    • 2003
  • This paper presents a systematic description of exceptional pronunciations for automatic Korean pronunciation generation. An automatic pronunciation generator in Korean is an essential part of a Korean speech recognition system and a TTS (Text-To-Speech) system. It is composed of a set of regular rules and an exceptional pronunciation dictionary. The exceptional pronunciation dictionary is created by extracting the words that have exceptional pronunciations, based on the characteristics of the words of exceptional pronunciation through phonological research and the systematic analysis of the entries of Korean dictionaries. Thus, the method contributes to improve performance of automatic pronunciation generator in Korean as well as the performance of speech recognition system and TTS system in Korean.

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A Study on the Guidance Law Suitable for Target Tracking System of an Underwater Vehicle (수중운동체의 목표추적시스템에 적합한 유도론 선정에 대한 연구)

  • Yun, Kun-Hang;Rhee, Key-Pyo;Yeo, Dong-Jin
    • Journal of the Society of Naval Architects of Korea
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    • v.42 no.4 s.142
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    • pp.299-306
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    • 2005
  • To determine a guidance law which is suitable for Target Tracking System(TTS) of an underwater vehicle, the performance (hitting probability) of TTS were calculated with four different guidance schemes, considering underwater vehicle's manoeuvrability and characteristics of seeking equipment such as sonar To evaluate the performance of TTS with each guidance law, numerous target-tracking simulations of underwater vehicle were performed under the condition of target's various motion scenario. Furthermore, the effect of sonar characteristics to the performance of guidance law in TTS was studied by changing parameters of sonar such as frequency of ping and detecting error of target. The pursuit-tail guidance law showed the best performance among four different guidance laws. Complex motion of target from straight line to turning circle and zigzag movement, low frequency of sonar ping and large detecting error of target decreased the hitting probability.

Analysis of Trouble Ticket System for Efficient Network Management (효율적인 통신망 관리를 위한 TTS 시스템 분석 및 설계)

  • Kim, Jeom-Goo
    • Convergence Security Journal
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    • v.7 no.4
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    • pp.9-10
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    • 2007
  • Recently, as infra structure on network is being extended, its reliability and availability have an important effect upon the productivity of the entire organization, the subject of economy. If an temporary trouble on network(hardware, protocol) which serve as pipeline of information tendency is occurred, the organization is suffered serious damage. thus, more effective counterplan is required to safely manage network. TTS(Trouble Ticket System) is needed to clear away every obstacle. eventually, TTS can minimize the loss of time and money. In this paper, it will make use of the development of TTS suitting with domestic situation.

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Performance comparison of various deep neural network architectures using Merlin toolkit for a Korean TTS system (Merlin 툴킷을 이용한 한국어 TTS 시스템의 심층 신경망 구조 성능 비교)

  • Hong, Junyoung;Kwon, Chulhong
    • Phonetics and Speech Sciences
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    • v.11 no.2
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    • pp.57-64
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    • 2019
  • In this paper, we construct a Korean text-to-speech system using the Merlin toolkit which is an open source system for speech synthesis. In the text-to-speech system, the HMM-based statistical parametric speech synthesis method is widely used, but it is known that the quality of synthesized speech is degraded due to limitations of the acoustic modeling scheme that includes context factors. In this paper, we propose an acoustic modeling architecture that uses deep neural network technique, which shows excellent performance in various fields. Fully connected deep feedforward neural network (DNN), recurrent neural network (RNN), gated recurrent unit (GRU), long short-term memory (LSTM), bidirectional LSTM (BLSTM) are included in the architecture. Experimental results have shown that the performance is improved by including sequence modeling in the architecture, and the architecture with LSTM or BLSTM shows the best performance. It has been also found that inclusion of delta and delta-delta components in the acoustic feature parameters is advantageous for performance improvement.