音声のピッチ抽出に関するシンポジウム : 時間遅れの少ない音声のピッチ抽出方式

抄録

A new principle is described which permits not only extraction of pitch frequency, but extraction of formant or new parameter of speech information. This is achieved by discriminating the zerocrossing of frequency shifted signal. We shall describe here a pitch extractor which has following remarkable features, 1) with minimum time delay 2) sensitive for weak signal 3) needless of lower frequency component.