網球拍面不同撞擊點撞擊聲音基頻之比較

A Base Frequencies Comparison of Hitting Voices from Different Hitting Positions of Tennis Racquet

陳宥安(Yu-An Chen)；劉于詮(Yu-Chuan Liu)；陳淑利(Shu-Lee Chen)；林信佑(Hsing-Yu Lin)

網球拍 ； 撞擊聲音 ； 基頻 ； Tennis racket ； Hitting voice ； Base frequency

兩岸運動訓練科學研討會論文集

2013（2013 / 12 / 01）

77 - 80

繁體中文

目的：針對撞擊網球拍面不同撞點的聲音基頻進行比較。方法：使用Audacity聲音編輯軟體針對桌球撞擊網球拍（穿至60磅）的聲音進行錄製並分析該聲音的基頻。結果：各撞擊位置的基頻以中心點最高，12點鐘次之，6點鐘最低，而且三者在統計上均達顯著差異（p＜.05）。由於球線張力和撞擊網球拍聲音的基頻成正比，而球線張力也和球被回擊後的速度成正比，因此在教學訓練上要求以網球拍中心點擊球是合理的。

Purpose: Comparing fundamental frequencies of hitting sounds from different hitting positions of a tennis racquet. Methods: Using the audio editor Audacity to record the sounds of hitting a tennis racquet (tensed to 60 pounds) by a ping pong ball and analyze the fundamental frequencies of the sounds. Result: Among all fundamental frequency from different hitting positions, the one from the center position was the highest, the one from the 12 o'clock position occupied second, and the one from the 6 o'clock position ranked in the bottom. Statistically, the three had remarkable differences (P＜.05). As a result of the tension of racquet strings and fundamental frequencies of hitting sounds from tennis racquets were in direct proportion, and the tension of racquet strings and the speed of returning the balls were also in direct proportion, it would be sensible that requiring students to hit the balls with the center of the racquets in teaching and training.