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Volumn E79-A, Issue 2, 1996, Pages 233-238

Coding gain in non-paraunitary subband coding systems

Author keywords

Bit allocation quantizer model; Coding gain; Non paraunitary; Subband coding

Indexed keywords

APPROXIMATION THEORY; CODING ERRORS; ELECTRIC FILTERS; MATHEMATICAL MODELS; SIGNAL DISTORTION; SIGNAL FILTERING AND PREDICTION; SPURIOUS SIGNAL NOISE;

EID: 0030083490     PISSN: 09168508     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article
Times cited : (4)

References (23)
  • 12
    • 85027180655 scopus 로고    scopus 로고
    • note
    • A Proposal of Five-Degree-of-Freedom 3D Nonverbal Voice Interface Tatsuhiro YONEKURA 1, Rikako NARISAWA 2, and Yoshiki WATANABE 1 1 Faculty of Engineering, Ibaraki University, Hitachi-shi, 316 Japan 2 INCREMENT P CORPORATION, Tokyo, 153 Japan This paper proposes a new emphasizing three-dimensional pointing device considering user friendliness and lack of cable clutter. The proposed method utilizes five degrees of freedom via the medium of non-verbal voice of human. That is, the spatial direction of the sound source, the type of the voice phoneme and the "tone" of the voice phoneme are utilized. The input voice is analyzed regarding the above factors and then taking proper effects as previously defined for human interface. In this paper the estimated spatial direction is used for three-dimensional movement for the virtual object as three degrees of freedom. Both of the type and the tone of the voice phoneme are used for remaining two degrees of freedom. Since vocalization of nonverbal human voice is an everyday task, and the intonation of the voice can be quite easily and intentionally controlled by human vocal ability, the proposed scheme is a new three-dimensional spatial interaction medium. In this sense, this paper realizes a cost-effective and handy nonverbal interface scheme without any artificial wearing materials which might give a physical and psychological fatigue. By using the prototype the authors evaluate the performance of the scheme from both of static and dynamic points of view and show some advantages of look and feel, and then prospect possibilities of the application for the proposed scheme. key words: five degrees of freedom (DOF), nonverbal voice, tone factor, sound source orientation estimation, human communications and ergonomics
    • Five-Degree-of-Freedom
    • Of, P.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.