@article{oai:u-ryukyu.repo.nii.ac.jp:02001473,
 author = {仲間, 正浩 and Nakama, Masahiro},
 issue = {45},
 journal = {琉球大学教育学部紀要 第一部・第二部},
 month = {Oct},
 note = {It is meaningful to develop a Real-Time Response Pitch Descrimination System by utilizing a computing sound pitch. There are many approaches in computing sound pitch. But, no approach was seen in developing enough response-time and accuracy of frequency discrimination for pitch discrimination training. Therefore new methodology is considered to improve response-time and accuracy of frequency discrimination. In FFT (Fast Fourier Transformation), there exist mathematical relations such that\n(1) time_range_of_analysis^*frequency_discrimination = 1 and\n(2) response_time = time_range_of_analysis/2^*computing_time,\nwhich shows no improvement in both response-time and accuracy of frequency discrimination. Fortunately, there exist the fact such that many peaks of power spectrum : f[Hz], f^*2[Hz], f^*3[Hz], ･･････ as the results of FFT from a single f[Hz] pitch sound.\nTo improve both response-time and accuracy of frequency discrimination, the following new method is considered in this paper. Step1 : Compute pitch roughly from f[Hz] power spectrum peak. Step2 : Compute pitch accurately from f^*n[Hz]., 紀要論文},
 pages = {411--418},
 title = {即時応答型音程トレーナーの為の周波数解析手法について},
 year = {1994}
}