@techreport{oai:ipsj.ixsq.nii.ac.jp:00218518,
 author = {Liao, Jiahui and 河原, 英紀 and 松井, 淑恵 and Jiahui, Liao and Hideki, Kawahara and Toshie, Matsui},
 issue = {59},
 month = {Jun},
 note = {聴覚フィードバックは発声基本周波数の調整において重要な役割を果たす．ピッチシフトのある音を聴取した際の発声の応答について，様々な研究が展開されてきた．しかし，ランダムな基本周波数の周波数変動に対する発声の不随意応答の分析は難しく，応答の仕組みはまだ明かされていない．河原らはパルスに復元することのできるランダムな系列を用いて基本周波数を変調する方法 [1] を考案した．本研究ではこの手法を用いて，基本周波数が周波数変調された純音や複合音を聴取した際の発声実験を実施し，聴取する音の構成が発声の不随意応答にどのように影響するかを調査した．その結果，複合音条件では，基本周波数の周波数変動に対する補償応答が見られたが，純音条件では見られなかった．また，高次の高調波のみ含むミッシングファンダメンタル音はその他の条件より，応答が小さかった．この結果から，基本周波数の周波数変動に対する不随意応答には低次の高調波が影響していることが示唆された．また，発声応答にピッチ知覚が与える影響を確かめるため，発声実験と同じ種類の刺激音に対して，ピッチマッチング実験を行なった．試行ごとのばらつきはあったが，発声応答との関係は明らかにならなかった．, Auditory feedback plays an important role in the regulation of voice pitch. Various studies have been conducted on vocal responses to pitch-shifted signals. However, it is difficult to analyze voice involuntary response to random modulated fundamental frequency, and the response mechanism has not yet been elucidated. Kawahara et al. devised a method [1] of creating sounds with random fundamental frequency modulation from maximum length sequence and converting them back to pulses. In this study, vocalization experiments were conducted while listening to a tone and a complex tone with momentary modulated fundamental frequency to investigate how the components of the sound being listened to affects the involuntary response of the vocalization. The results showed that the compensatory response to fundamental frequency modulation was observed in the complex tone condition, but not in the pure tone condition. Also, the missing fundamental sound, which contained only higher harmonics, had a smaller response than the other conditions. These results suggest that the involuntary response to random fundamental frequency modulation is influenced by lower-order harmonics. Pitch-matching experiments were also conducted for the same types of stimulus sounds to investigate the effects of pitch perception to the vocalization results. Although there was some variation from trial to trial, the relationship between the vocal response and the perceived pitch was unclear.},
 title = {基本周波数の周波数変調に対する発声の不随意応答：純音・複合音を用いた検討},
 year = {2022}
}