A 共振峰 is a 峰 of 频率 in the 频谱 of a 声波 which may be 联合 with a 共鸣 in the mechanism of the 制作 of the 声波 Vowel 声 may possess more than one 共振峰 in different part of the 频谱 The 术语 may also be used in 关系 to 樂/乐 乐器 J Borwick quoted in Rodolfo Caesar 1992 The 作曲 of 電聲學/电声学 樂/乐 PhD Thesis University of East Anglia