• Title/Summary/Keyword: Voice, Sound

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The Study of Voice and Data Transmission System using Underwater Ultrasound (수중초음파를 이용한 음성 및 데이터전송 시스템에 관한 연구)

  • Cho, Hyeok;Lee, Han;Kim, Young-Kil
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2002.05a
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    • pp.163-166
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    • 2002
  • The underwater acoustic communication has been widely applied to various objects such as ocean exploration-development and military affairs. And recently for embodiment of the communication system that is installed in a submarine and underwater work system, many studies have been progressing. This scope of the main studies in the meantime. It made it possible for a diver and a scuba diver who arc difficult to notice the situation of the outside because of staying in the water to hear a sound through a small speaker by using a ultra sound transducer that a central frequency is 32KHz after modulation of a voice to give the information of the outside. Also in case of happening an emergency to a diver in the water, it made him/her ask for help to a person in the outside by pressing a key and send a letter data to a person in the outside by using a keyboard. Through this system, it is possible to send a voice or data between the underwater and the outside and it is available to a diver or skin scuba diver.

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Vocal Analysis of Talking Rooster (말하는 닭의 발성 특성 분석)

  • Kyon, Doo-Heon;Bae, Myung-Jin
    • The Journal of the Acoustical Society of Korea
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    • v.29 no.2
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    • pp.125-132
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    • 2010
  • Since the ancient times, animals that can imitate the voices of human beings have been considered extremely special. There are very few such animals, and the parrot is an example of them. For a long time, there had been no reported case of a rooster being able to mimic the voice of a human being, but talking roosters were recently found in Korea and the Kyrgyz Republic, generating much talk. In this study, the vocal characteristics of such roosters were examined, and their pronunciation-related statistics and actual sound sources were analyzed. The analysis results showed that even though the roostets cannot converse with people, they can imitate the human voice, uttering the words "An-dwae," and "A-ni-ya" in Korean, which mean "No" in English, when someone tries to catch their wings. A similar situation 'occurred in the Kyrgyzstan. The results of the listening survey on these sounds made by the roosters showed that most people recognized the words uttered by the roosters and that nobody thought that the words sounded like "cock-a-doodle-doo." It can be said that such roosters can make the sounds of the human voice because of their innate vocal organ and characteristics, which are significantly different from those of the general roosters. Their vocal organ and characteristics cause the sounds that they make to change in their vocal cords due to their high tension when humans try to catch them.

Use of Voice Script For Speech Characterization (화법에 의한 성격표현에 활용할 소리대본 작성법)

  • Lee, Ki-Ho
    • The Journal of the Korea Contents Association
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    • v.11 no.12
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    • pp.976-985
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    • 2011
  • The purpose of this research is to investigate the usage of voice scripting for speech characterization. The ultimate goal of acting is for an actor to create one's character both in physical and vocal sense, and to present them on stage. Toward this goal, actors train themselves with various methods and techniques as well as character analysis. Most of their efforts are put into for better physical and vocal expression. The vocal characterization on stage is heavily governed by the proper speech based on the effective respiration and voice. This paper provides the way of how to use sound scoring for effective vocal characterization on stage.

A Study on the Usability Evaluation and Improvement of Voice Tag Reader for an Visually Impaired Person (시각장애인 대상 음성태그리더기의 사용성 평가 및 개선 방안 연구)

  • Sora Kim;Yongyun Cho;Taehee Yong
    • Journal of Internet of Things and Convergence
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    • v.9 no.2
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    • pp.1-9
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    • 2023
  • This study was conducted for the purpose of improving the usability of the product through the usability evaluation of the voice tag reader to improve the life convenience of the visually impaired. Perceived usability evaluation was conducted for 19 evaluation items based on the evaluation model considering the usability principle and the characteristics of the visually impaired. A total of 50 participants were included for the analysis. As a result of the perceived usability evaluation of the visually impaired, the safety of the voice tag reader, voice and sound quality, and accuracy of voice information were relatively satisfactory. It was found that the reader received a low evaluation in terms of efficiency in use, including the size and weight of the reader, and the convenience of carrying and storing. For the usability improvement, the procedure for using a product needs to be more simplified, and it would be helpful to input and supply tags for commonly used objects in advance.

A Lingual Sound Analysis based on Oriental Medicine Auscultation for Heart Diseases Diagnosis (심장(心臟) 질환(疾患) 진단(診斷)을 위한 한의학적 청진(聽診) 기반의 설음(舌音) 분석)

  • Kim, Bong-Hyun;Cho, Dong-Uk;Her, Sung-Ho
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.34 no.8B
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    • pp.830-838
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    • 2009
  • Oriental medicine lacks diagnosis data in fixed quantity possible to express visually to patients by depending on clinician's intuition than Western medicine that continues to development by various diagnosis devices. For that, this paper intends to examine relation between heart and voice signal regarded as center organ and source of life and mind in order to implement objectification through the visualization of oriental diagnosis method above all. According to because the heart is related to the tongue among five organs, by thinking with sounds, we would design the way of identifying existence of heart diseases focused on the fact that lingual sound pronunciation of heart patient is inexact. For this, we achieved a comparison, analysis of statistical bandwidth and morphological modeling of the second formants frequency about a lingual sound for their voice constituted subject group of heart diseases and normal people. Finally, we analyzed interrelationship to the result of experiment by designed method.

The effects of PM driving direction and alert sound type on risk perception and awareness of PM driver of pedestrians (개인형 이동장치(PM)의 주행 방향과 경고방식의 차이가 보행자의 위험 지각과 주행자에 대한 인식에 미치는 영향)

  • Jung, Yoon-Hyun;Lee, Soo-Ji;Kang, Hyunmin
    • Journal of Digital Convergence
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    • v.19 no.7
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    • pp.217-226
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    • 2021
  • The use of personal mobility(PM) is increasing because of preading shared mobility, but, it causes risk of accidents and fear to pedestrians because of lack of sound. The purpose of this study is to find out the effects of the alert sound in PM and driving direction on risk perception of pedestrians, awareness on PM driver, and allowance for driving on each road. The 8 videos were produced from a pedestrian perspective, depending on the alert sound type(silent, vess, bell, voice) and direction of driving(front, back). After watching each video, participants completed surveys. There was a non-effect on the driving direction. Regardless of the alert sound type, all of the sounds reduced the risk perception. Also, the awareness of PM drivers and allowance for driving on each road were positive. This study found that PM needed an alert sound for pedestrian safety. We expect the results of the study to help improve awareness of PM and make policies and regulations.

Effects of breathing training in melodic intonation therapy on articulation intelligibility of aphasics: pilot study (멜로디 억양 치료에서 실어증 환자의 조음 명료도에 대한 호흡 훈련 효과: 초기 실험)

  • Kim, Seon Sik;Hong, Geum Na;Choi, Min Joo
    • The Journal of the Acoustical Society of Korea
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    • v.35 no.4
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    • pp.319-329
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    • 2016
  • The present study was to test if breathing training in melodic intonation therapy (MIT) ameliorated the articulation intelligibility of Broca's aphasics or not. The experimental group did breathing training (2 stages) that preceded the MIT. In order to evaluate the efficacy of the MIT intervention, the VOT (Voice Onset Time), the TD (Total Delay), the voice sound intensity and the expiratory volume of the subjects, closely associated with articulation intelligibility were measured before and after the intervention. It was shown that, in the experimental group after the MIT intervention, the VOT and TD were increased on bilabial/p/, alveolar consonant /t/, and soft palatal /k/(p < 0.05), but no significant differences were found on affricate /c/ and fricative /s/(p > 0.05). In the control group, no significant increases in the VOT and TD were observed on all articulation points(p > 0.05). The voice sound intensity which influences the verbal articulation increased in the experimental group after the intervention(p < 0.05), whereas no significant changes were observed in the control group. In conclusion, the breathing training in the MIT was found to result in improving the articulation intelligibility of Broca's aphasiacs.

Adaptive Buffer Management Method for Quality of Service of Internet Telephony (인터넷폰의 QoS를 위한 적응적인 버퍼관리 방식)

  • 류태욱;이정훈;강성호;엄기환
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.6 no.3
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    • pp.386-392
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    • 2002
  • Internet telephony is an application that transmits voice data for conversation. Therefore it must provide high sound quality. However while audio packets are transferred through the network, they are affected by delay variations and jitters, which could result in poor sound quality of the receiving end does not have an appropriate jitter buffer to overcome network factors. This thesis introduces a buffer management algorithm that could be used to provide better sound quality for Internet phone terminals. This algorithm actively responds to both the compression algorithms that are used by the terminals, as well as to the received data to provide an improvement in sound quality. In order to verify the effectiveness of the proposed algorithm, we experimented in variance network settings. The results show that the proposed algorithm improves on the performance of the conventional buffer management algorithm.

Adaptive Buffer Management Method for QoS of Internet Telephony (인터넷폰의 QoS를 위한 적응적인 버퍼관리 방식)

  • 류태욱;이현관;이용구;김주웅;엄기환
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2002.05a
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    • pp.384-387
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    • 2002
  • Internet telephony is an application that transmits voice data for conversation. Therefore it must provide high sound quality. However while audio packets are transferred through the network, they are affected by delay variations and jitters, which could result in poor sound quality if the receiving end does not have an appropriate jitter buffer to overcome network factors. This thesis introduces a buffer management algorithm that could be used to provide better sound quality for Internet phone terminals. This algorithm actively responds to both the compression algorithms that are used by the terminals, as well as to the received data to provide an improvement in sound quality. In order to confirm the validity of the suggested algorithm, comparisons of the performance have been made between the existing buffer management algorithms and this new algorithm in various network settings.

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Investigation of the Soundscapes of Jeju Olle Route via Soundwalking (Soundwalking을 통한 제주도 올레길의 소리풍경 조사)

  • Park, Chan-Jae;Haan, Chan-Hoon
    • The Journal of the Acoustical Society of Korea
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    • v.30 no.8
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    • pp.410-420
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    • 2011
  • The present study aims to investigate the soundscapes of Jeju olle route through the soundwalking. In order to do this, sound measurements and sound recording were undertaken at 10 points along Jeju olle route. Also, loudness of background sound and figure sound were examined. Subjective surveys were carried out using questionnaire and interviews with 32 tourists and 5 acoustical specialists in order to investigate the loudest sound, most pleasant and unpleasant sound, and impressive sound among 17 natural and artificial sounds. Additionally, laboratory experiments were achieved to evaluates sound that have been recorded at the field using same questionnaire and the results were compared with those of field experiments. As a result, the sound heard most in Jeju olle route is the sea wave sound, wind sound, automobile noise, and human voice. It was revealed that the most pleasant sound consisted of nature sound among them, and that unpleasant sounds are artificial sounds. The results of subjective test denote that unpleasant sound is affected by ratio of artificial sound and nature sound. And this also affects the assessment about the loudness of the sound. Also, it was found that the results of both field test and laboratory test are closely correlated in the evaluation of loudness of sound and unpleasant feeling.