Falsetto ( , ; Italian language diminutive of falso, "false") is the vocal register occupying the frequency range just above the modal voice register and overlapping with it by approximately one octave.
It is produced by the vibration of the edges of the vocal cords, in whole or in part. Commonly cited in the context of singing, falsetto, a characteristic of phonation by both sexes, is also one of four main spoken vocal registers recognized by speech pathology.
The term falsetto is most often used in the context of singing to refer to a type of vocal phonation that enables the singer to sing notes beyond the vocal range of the normal, or modal, voice (M1).
In the modal register, the vocal folds (when viewed with a stroboscope) are seen to contact with each other completely during each vibration, closing the gap between them fully, if just for a very short time. This closure cuts off the escaping air. When the air pressure in the trachea rises as a result of this closure, the folds are blown apart, while the vocal processes of the arytenoid cartilages remain in apposition. This creates an oval gap between the folds and some air escapes, lowering the pressure inside the trachea. Rhythmic repetition of this movement creates the note.
In falsetto, however, the vocal folds are seen to be blown apart, and in untrained falsetto singers, a permanent oval orifice is left in the middle between the edges of the two folds through which a certain volume of air escapes continuously as long as the register is engaged (the singer is singing using the voice). In skilled , however, the mucous membrane of the vocal folds contact with each other completely during each vibration cycle. The arytenoid cartilages are held in firm apposition in this voice register also. The length or size of the oval orifice or separation between the folds can vary, but it is known to get bigger as the pressure of air pushed out is increased.
The folds are made up of elastic and fatty tissue. The folds are covered on the surface by larynx mucous membrane, which is supported deeper down underneath by the innermost fibres of the thyroarytenoid muscle. In falsetto, the extreme membranous edges (i.e., the edges furthest away from the middle of the gap between the folds) appear to be the only parts vibrating. The mass corresponding to the innermost part of the thyroarytenoid muscle remains still and motionless.
Some singers feel a sense of muscular relief when they change from the modal register to the falsetto register.
Research has revealed that not all speakers and singers produce falsetto in exactly the same way. Some speakers and singers leave the cartilaginous portion of the glottis open (sometimes called 'mutational chink'), and only the front two-thirds of the vocal ligaments enter the vibration. The resulting sound, which is typical of many adolescents, may be pure and flutelike, but is usually soft and anemic in quality. In others, the full length of the glottis opens and closes in each cycle. In still others, a phenomenon known as damping appears, with the amount of glottal opening becoming less and less as the pitch rises, until only a tiny slit appears on the highest pitches. The mutational chink type of falsetto is considered inefficient and weak, but there is little information available about the relative strengths and weaknesses of the other two types.
While scientific evidence has proven that women have a falsetto register, the issue of 'female falsetto' has been met with controversy among teachers of singing. This controversy does not exist within the sciences and arguments against the existence of female falsetto do not align with current physiological evidence. Some pioneers in vocal pedagogy, like Margaret Green and William Vennard, were quick to adopt current scientific research in the 1950s, and pursued capturing the biological process of female falsetto on film. They went further to incorporate their research into their pedagogical method of teaching female singers.
However, other writers of singing have warned about the dangers of failing to recognize that women have a falsetto register. McKinney, who expressed alarm that many books on the art of singing completely ignore or gloss over the issue of female falsetto or insist that women do not have falsetto, argues that many young female singers substitute falsetto for the upper portion of the modal voice. He believes that this failure to recognize the female falsetto voice has led to the misidentification of young and as , as it is easier for these lower voice types to sing in the soprano tessitura using their falsetto register.
The falsetto register is used by male to sing in the alto and occasionally the soprano range and was the standard before women sang in . Falsetto is occasionally used by early music specialists today and regularly in British cathedral choirs by men who sing the alto line.Sadie, Stanley. 2001. "Alto." New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie and John Tyrrell. London: Macmillan Publishers.
There is a difference between the modern usage of the "head voice" term and its previous meaning in the renaissance as a type of falsetto, according to many singing professionals. These days, head voice is typically defined as a mix of chest and head voice, therefore created a stronger sound than falsetto. The falsetto can be coloured or changed to sound different. It can be given classical styling to sound as male classical make it sound, or be sung in more contemporary musical styles. Review of Justin Timberlake: FutureSex/LoveSounds - "Timberlake's falsetto layering on top of one other as the songs build to their crescendos."
In opera, it is believed that the chest voice, middle voice and head voice occur in women.The OXFORD DICTIONARY OF OPERA. JOHN WARRACK AND EWAN WEST, The head voice of a man is, according to David A. Clippinger generally equivalent to the middle voice of a woman. Project Gutenberg etext. This may mean the head voice of a woman is a man's falsetto equivalent. Although, in contemporary teaching, some teachers no longer talk of the middle voice, choosing to call it the head voice as with men. Falsetto is not generally counted by classical purists as a part of the vocal range of anyone except . There are exceptions, however, such as the baryton-Martin which uses falsetto (see baritone article).THE NEW GROVE Dictionary of MUSIC & MUSICIANS. Edited by Stanley Sadie, Volume 2. Back to Bolivia. , Copyright Macmillan Publishers Limited 1980.
Some people who speak frequently or entirely in the falsetto register are identified by speech pathologists as suffering from a functional Hoarse voice. Falsetto also describes the momentary, but often repeated, fluctuations in pitch emitted by both sexes while undergoing voice change during adolescence. These changes, however, are more apparent and occur with greater frequency in boys than they do in girls. Failure to undergo proper voice-change is called puberphonia.
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