A4 Sound Quality Analysis of Metal baseball bat Hitting Sound

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  • A4 金属バット打撃音の音質解析(打撃音)
  • 金属バット打撃音の音質解析
  • キンゾク バット ダゲキオン ノ オンシツ カイセキ

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Requirement properties of metal baseball bats for horsehide were mainly coefficient of restitution and durability in the designing process. In recent years, another requirement property, hitting sound has been focused. Some researches concerning hitting sound comfort can be classified into 2 categories, one is sensual qualitative approach, the other is sound quality analysis such as 1/3 octave method. However these relationships has not been studied and the direct application of 1/3 octave method to the sound comfort evaluation is not proper. In this study, some problems in the application of typical sound analysis method are discussed and a new parameter, bsp, batting sound prominence, based on the loudness analysis method is proposed. The validity of the new parameter is discussed through the comparison with the sensual tests. Moreover the sound mechanism is also discussed.

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