Then, as now, the vibrato was a topic of great interest to musicians, and he took to the task of defining, measuring, and understanding it.
Within this book are most of the initial studies on vibrato.
Seashore's studies helped me understand some confusing statements by respected pedagogues from the past concerning the vibrato and its use in our profession.
Vibrato is a periodic oscillation of the fundamental frequency (perceived as pitch) and all its harmonics, amplitude (perceived as apparent intensity or volume), timbre (a result of harmonics sweeping through vowel formants), subglottic pressure, closed quotient (the percentage of each vibration cycle the vocal folds are in contact), and formant frequencies.
When describing how vibrato may be adjusted for performing different musical styles, the terms vibrato rate and vibrato extent are often used.
Wobble is usually a vibrato with a wider extent and a slower than desirable vibrato rate (2-4 Hz), while bleat or flutter is a vibrato that has a narrower extent and a faster than desired rate (up to 8 Hz).
Listeners reported to prefer vibratos having a frequency modulation rate of about 5.
WHEN A SINGER IS AFFLICTED with a too fast or too slow vibrato ate, does physiological hard wiring condemn him to that ndition for life, or can he change it over time?
At the end of the unit on vibrato in the voice pedagogy class, the professor requests volunteers from the class to participate in an informal experiment.
The most amusing of the glottal vibratos are the goat vibrato and the horse vibrato.
Timbre vibratos can be created using a variety of techniques.
In addition to these vibratos, there are numerous hybrids that have been created by combining them.
VIBRATO IS AN IMPORTANT FACTOR IN BEAUTIFUL SINGING.
The vibrato is particularly elusive to many beginning singers because, unlike other components of singing, it is not a common phenomenon in everyday speech.
Mason and Zemlin revealed through electromyographic analysis that vibrato is caused by the cricothyroid muscle.