Freddie Mercury-acoustic analysis of speaking fundamental frequency, vibrato, and subharmonics
Freddie Mercury-acoustic analysis of speaking fundamental frequency, vibrato, and subharmonics
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DOI：
10.3109/14015439.2016.1156737
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发表时间：
2017-01-01
影响因子：
1.1
通讯作者：
Lindestad, Per-Ake
中科院分区：
文献类型：
--
作者：
Herbst, Christian T.;Hertegard, Stellan;Lindestad, Per-Ake
弗雷迪·墨丘利是二十世纪最著名的当代商业音乐歌手之一。本研究基于对公开录音的感性和定量分析，对他的声音制作和演唱风格进行了声学分析。对六次访谈的分析显示，说话基本频率的中位数为117.3赫兹，这是男中音的典型特征。从全带录音中分离的音轨分析表明，唱歌的声音范围在f# 2（约92.2 Hz）至G5（约784 Hz）的音高范围内为37个半音。有证据表明，在1347赫兹的基本频率下存在更高的发声频率是不可靠的。对21份无伴奏合唱录音中的240个持续音符的分析显示，平均基本频率调制率（颤音）惊人地高，达到7.0 Hz，达到了声音震颤的范围。定量分析利用一个新引入的参数来评估声乐颤音的规律性证实了其感知上的不规则性质，表明颤音（ir）的规律性是歌唱声音的一个显著特征。内窥镜高速视频记录了一位专业摇滚歌手模仿亚谐波发声样本，以每秒4132帧的速度记录了声带和心室褶皱的3:1频率锁定振动模式。
Freddie Mercury was one of the twentieth century's best-known singers of commercial contemporary music. This study presents an acoustical analysis of his voice production and singing style, based on perceptual and quantitative analysis of publicly available sound recordings. Analysis of six interviews revealed a median speaking fundamental frequency of 117.3 Hz, which is typically found for a baritone voice. Analysis of voice tracks isolated from full band recordings suggested that the singing voice range was 37 semitones within the pitch range of F#2 (about 92.2 Hz) to G5 (about 784 Hz). Evidence for higher phonations up to a fundamental frequency of 1,347 Hz was not deemed reliable. Analysis of 240 sustained notes from 21 a-cappella recordings revealed a surprisingly high mean fundamental frequency modulation rate (vibrato) of 7.0 Hz, reaching the range of vocal tremor. Quantitative analysis utilizing a newly introduced parameter to assess the regularity of vocal vibrato corroborated its perceptually irregular nature, suggesting that vibrato (ir) regularity is a distinctive feature of the singing voice. Imitation of subharmonic phonation samples by a professional rock singer, documented by endoscopic high-speed video at 4,132 frames per second, revealed a 3:1 frequency locked vibratory pattern of vocal folds and ventricular folds.