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        <identifier>oai:ipsj.ixsq.nii.ac.jp:00062618</identifier>
        <datestamp>2025-01-22T02:32:02Z</datestamp>
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          <dc:title>相平面に描かれるF0の動的変動成分を利用した歌唱様式の自動分類</dc:title>
          <dc:title>Automatic Identification for Singing Style Based on Sung Melodic Contour Characterized in Phase Plane</dc:title>
          <dc:creator>加古, 達也</dc:creator>
          <dc:creator>大石, 康智</dc:creator>
          <dc:creator>亀岡, 弘和</dc:creator>
          <dc:creator>柏野, 邦夫</dc:creator>
          <dc:creator>武田, 一哉</dc:creator>
          <dc:creator>Tatsuya, Kako</dc:creator>
          <dc:creator>Yasunori, Ohishi</dc:creator>
          <dc:creator>Hirokazu, Kameoka</dc:creator>
          <dc:creator>Kunio, Kashino</dc:creator>
          <dc:creator>Kazuya, Takeda</dc:creator>
          <dc:subject>音楽音響信号処理（１）</dc:subject>
          <dc:description>本研究では，歌唱様式の確率表現手法を提案する．歌声の基本周波数 (F0) の軌跡に現れるビブラートのような動的変動成分には個人ごとに特徴があり，このような F0 軌跡の振る舞いが歌唱様式であると考える．歌声の F0 軌跡を相平面上に描くことで動的変動成分を可視化できる．歌唱様式が表れる相平面上の渦軌跡をモデル化するために混合ガウス分布 (GMM) による分布の学習をし，相平面を確率的に表現する．歌唱様式の確率表現手法の有効性を確認するために，歌唱カテゴリ識別実験を行った．その結果 96% の識別率を得た．</dc:description>
          <dc:description>In this paper, a stochastic representation of singing styles is proposed. The dynamic property of the melodic contour, i.e. fundamental frequency (F0) sequence, is assumed to be the main cue of singing styles because typical ornamentations such as vibrato has an individuality. F0 signal trajectories in the phase plane are used as the basic representation. By fitting Gaussian mix-ture models to the observed F0 trajectories in the phase plane, a parametric representation is obtained by a set of GMM parameters. The effectiveness of the proposed method is confirmed through experimental evaluation where 96% accuracy for singer-class discrimination was obtained.</dc:description>
          <dc:description>technical report</dc:description>
          <dc:publisher>情報処理学会</dc:publisher>
          <dc:date>2009-07-22</dc:date>
          <dc:format>application/pdf</dc:format>
          <dc:identifier>研究報告音楽情報科学（MUS）</dc:identifier>
          <dc:identifier>4</dc:identifier>
          <dc:identifier>2009-MUS-81</dc:identifier>
          <dc:identifier>1</dc:identifier>
          <dc:identifier>6</dc:identifier>
          <dc:identifier>AN10438388</dc:identifier>
          <dc:identifier>https://ipsj.ixsq.nii.ac.jp/record/62618/files/IPSJ-MUS09081004.pdf</dc:identifier>
          <dc:language>jpn</dc:language>
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