Vocal range is the range of pitches that a human voice can phonate. A common application is within the context of singing, where it is used as a defining characteristic for classifying singing voices into voice types.[1] It is also a topic of study within linguistics, phonetics, and speech-language pathology, particularly in relation to the study of tonal languages and certain types of vocal disorders, although it has little practical application in terms of speech.

Singing and the definition of vocal range

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While the broadest definition of "vocal range" is simply the span from the lowest to the highest note a particular voice can produce, this broad definition is often not what is meant when "vocal range" is discussed in the context of singing. Vocal pedagogists tend to define the vocal range as the total span of "musically useful" pitches that a singer can produce. This is because some of the notes a voice can produce may not be considered usable by the singer within performance for various reasons.[2] For example, within opera all singers must project over an orchestra without the aid of a microphone. An opera singer would therefore only be able to include the notes that they are able to adequately project over an orchestra within their vocal range. In contrast, a pop artist could include notes that could be heard with the aid of a microphone.

Another factor to consider is the use of different forms of vocal production. The human voice is capable of producing sounds using different physiological processes within the larynx. These different forms of voice production are known as vocal registers. While the exact number and definition of vocal registers is a controversial topic within the field of singing, the sciences identify only four registers: the whistle register, the falsetto register, the modal register, and the vocal fry register. Typically only the usable pitches within the modal register—the register used in normal speech and most singing—are included when determining singers' vocal ranges. There are exceptions,[1] as in opera, where countertenors employ falsetto and coloratura sopranos use the whistle register; notes from these registers would therefore be included in the vocal ranges of these voices.[2]

Evolution of sexual dimorphism in human voice pitch

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The upper pitch range of the human voice is, on average, about half as high in males as in females.[3] Even after controlling for body height and volume, the male voice remains lower. Charles Darwin suggested that the human voice evolved through intersexual sexual selection,[4] via female mate choices. Puts (2005) showed that preference for male voice pitch changed according to the stage of the menstrual cycle[5] while Puts (2006) found women preferred lower male voices mainly for short-term, sexual relationships.[6] Intrasexual selection, via male competition, also causes a selection in voice pitch. Pitch is related to interpersonal power[7] and males tend to adjust their pitch according to their perceived dominance when speaking to a competitor.[6]

Vocal range and voice classification

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Vocal range plays such an important role in classifying singing voices into voice types that sometimes the two terms are confused with one another. A voice type is a particular kind of human singing voice perceived as having certain identifying qualities or characteristics; vocal range being only one of those characteristics. Other factors are vocal weight, vocal tessitura, vocal timbre, vocal transition points, physical characteristics, speech level, scientific testing, and vocal registration. All of these factors combined are used to categorize a singer's voice into a particular kind of singing use or voice type.[8]

The discipline of voice classification developed within European classical music and is not generally applicable to other forms of singing. Voice classification is often used within opera to associate possible roles with potential voices. There are several systems in use including the German Fach system, the Italian opera tradition, and French opera tradition.[1] There are other systems of classification as well, most commonly the choral music system.[9]

No system is universally applied or accepted.[10] Most of the voice types identified by such systems, however, are sub-types that fall under seven different major voice categories that are for the most part acknowledged across all of the major voice classification systems.[10] Women are typically divided into three main groups: soprano, mezzo-soprano, and contralto. Men are usually divided into four main groups: countertenor, tenor, baritone, and bass. When considering the pre-pubescent voices of children an eighth term, treble, can be applied. Within each of these major categories there are several sub-categories that identify specific vocal qualities like coloratura facility and vocal weight to differentiate between voices.[1]

Vocal range itself does not determine a singer's voice type. While each voice type does have a general vocal range associated with it, human singing voices may possess vocal ranges that encompass more than one voice type or are in between the typical ranges of two voice types. Therefore, voice teachers use vocal range as only one factor among many in classifying a singer's voice.[2] More important than range in voice classification is tessitura, or where the voice is most comfortable singing, and vocal timbre, or the characteristic sound of the singing voice.[1] For example, a female singer may have a vocal range that encompasses the low notes of a mezzo-soprano and the high notes of a soprano. A voice teacher would therefore look to see whether the singer was more comfortable singing higher, or lower. If she were more comfortable singing higher, then the teacher would probably classify her as a soprano. If the singer were more comfortable singing in the mid to lower part of their voice the teacher would probably classify her as a mezzo-soprano. The teacher would also consider the sound of the voice; sopranos tend to have a lighter and less rich vocal sound than a mezzo-soprano. A voice teacher, however, would never classify a singer in more than one voice type, regardless of the size of the vocal range of the singer.[2]

Operatic six basic voice types

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Within the operatic systems of classification, there are six basic voice types. The ranges given below are approximations and are not meant to be too rigidly applied.[11][failed verification]

  • Soprano: the highest female voice typically between C4 and C6
  • Mezzo-soprano: the middle female voice typically between A3 and A5
  • Contralto: the lowest female voice typically between F3 and F5
  • Tenor: the highest male voice typically between C3 and C5
  • Baritone: the middle male voice typically between A2 and A4
  • Bass: the lowest male voice typically between E2 and E4
Scientific pitch name Frequency (A440) Voice type's range
Soprano
Mezzo-soprano
Contralto
Tenor
Baritone
Bass
C6 Soprano C (High C) 1046.502  
B5 987.7666
A5/B5 932.3275
A5 880.0000  
G5/A5 830.6094
G5 783.9909
F5/G5 739.9888
F5 698.4565  
E5 659.2551
D5/E5 622.2540
D5 587.3295
C5/D5 554.3653
C5 Tenor C 523.2511  
B4 493.8833
A4/B4 466.1638
A4 A440 440.0000  
G4/A4 415.3047
G4 391.9954
F4/G4 369.9944
F4 349.2282
E4 329.6276  
D4/E4 311.1270
D4 293.6648
C4/D4 277.1826
C4 Middle C 261.6256
B3 246.9417
A3/B3 233.0819
A3 220.0000
G3/A3 207.6523
G3 195.9977
F3/G3 184.9972
F3 174.6141
E3 164.8138
D3/E3 155.5635
D3 146.8324
C3/D3 138.5913
C3 130.8128
B2 123.4708
A2/B2 116.5409
A2 110.0000
G2/A2 103.8262
G2 97.99886
F2/G2 92.49861
F2 87.30706
E2 82.40689
D2/E2 77.78175
D2 73.41619
C2/D2 69.29566
C2 Deep C 65.40639

Some men, in falsetto voice or as a result of certain rare physiological conditions, can sing in the same range as women. These do not fall into the female categories, instead called countertenors within classical music. Within contemporary music, however, the use of the term tenor for these male voices would be more appropriate.[2]

Within choral music there are only four categories for adult singers: soprano and alto for women, tenor and bass for men.[12]

In the UK, the term "male alto" refers to a man who uses falsetto vocal production to sing in the alto section of a chorus. This practice is much less common outside the UK where the term countertenor is more often applied. Countertenors are also widely employed within opera as solo vocalists, though the term "male alto" is never used to refer to a solo vocalist.

Children's voices, both male and female, are described as trebles, although boy soprano is widely used as well.[1]

See also

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References

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  1. ^ a b c d e f McKinney, James (1994). The Diagnosis and Correction of Vocal Faults. Genovex Music Group. ISBN 978-1-56593-940-0.
  2. ^ a b c d e Appelman, D. Ralph (1986). The Science of Vocal Pedagogy: Theory and Application. Indiana University Press. ISBN 978-0-253-20378-6.
  3. ^ Titze, I. R. (2000) Principles of voice production. Iowa City, IA7 National Center for Voice and Speech
  4. ^ Darwin, C. (1871). The descent of man, and selection in relation to sex. London: Murray
  5. ^ Puts, D. A. (2005). "Mating context and menstrual phase affect female preferences for male voice pitch". Evolution and Human Behavior. 26 (5): 388–397. doi:10.1016/j.evolhumbehav.2005.03.001.
  6. ^ a b Puts, David Andrew; Gaulin, Steven J.C; Verdolini, Katherine (2006). "Dominance and the evolution of sexual dimorphism in human voice pitch". Evolution and Human Behavior. 27 (4): 283–296. Bibcode:2006EHumB..27..283P. doi:10.1016/j.evolhumbehav.2005.11.003. S2CID 32562654.
  7. ^ Gregory, S.; Webster, S.; Huang, G. (1993). "Voice pitch and amplitude convergence as a metric of quality in dyadic interviews". Language and Communication. 13 (3): 195–217. doi:10.1016/0271-5309(93)90026-j.
  8. ^ Shewan, Robert (January–February 1979). "Voice Classification: An Examination of Methodology". The NATS Bulletin. 35: 17–27.
  9. ^ Smith, Brenda Jo; Sataloff, Robert Thayer (2013). Choral Pedagogy, Third Edition. Plural Publishing, Incorporated. p. 236. ISBN 9781597566063.
  10. ^ a b Stark, James (2003). Bel Canto: A History of Vocal Pedagogy. University of Toronto Press. ISBN 978-0-8020-8614-3.
  11. ^ Peckham, Anne (2005). Vocal Workouts for the Contemporary Singer. Berklee Press Publications. ISBN 978-0-87639-047-4.[page needed]
  12. ^ Smith, Brenda (2005). Choral Pedagogy. Plural Publishing, Inc. ISBN 978-1-59756-043-6.
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