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目前国内外制造的各种电子乐音校音器,普遍存着以下技术缺陷: 1.检测音域范围不宽,小字4组以上及大字1组以下的音难以检测; 2.精度不高,因一般采用过零点检测,谐波零点、拍频零点对基频零点影响甚大,难以准确捡测到;
At present, all kinds of electronic musical tone tuners manufactured at home and abroad generally have the following technical defects: 1. The range of the detection range is not wide, and the sounds of more than four small characters and less than one group of large characters are hard to detect; 2. The accuracy is not high, Using zero-crossing detection, harmonic zero, beat zero zero impact on the fundamental zero, it is difficult to accurately detect the measured;