カラオケ採点用の高分解能ピッチ抽出法

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タイトル別名
  • A Pitch Extraction Method with High Frequency Resolution for Singing Evaluation
  • カラオケ サイテンヨウ ノ コウ ブンカイノウ ピッチ チュウシュツホウ

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This paper proposes a pitch estimation method suitable for singing evaluation incorporable in KARAOKE machines. Professional singers and musicians have sharp hearing for music and singing voice. They recognize that singer's voice pitch is “a little off key” or “be in tune”. In the same way, the pitch estimation method that has high frequency resolution is necessary in order to evaluate singing. This paper proposes a pitch estimation method with high frequency resolution utilizing harmonic characteristic of autocorrelation function. The proposed method can estimate a fundamental frequency in the range 50 ∼ 1700[Hz] with resolution less than 3.6 cents in light processing.

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