Vocal register

A vocal register is a range of tones in the human voice produced by a particular vibratory pattern of the vocal folds. These registers include modal voice (or normal voice), vocal fry, falsetto, and the whistle register. Registers originate in laryngeal function. They occur because the vocal folds are capable of producing several different vibratory patterns. Each of these vibratory patterns appears within a particular range of pitches and produces certain characteristic sounds.

In speech pathology, the vocal register has three components: a certain vibratory pattern of the vocal folds, a certain series of pitches, and a certain type of sound. Although this view is also adopted by many vocal pedagogists, others define vocal registration more loosely than in the sciences, using the term to denote various theories of how the human voice changes, both subjectively and objectively, as it moves through its pitch range. There are many divergent theories on vocal registers within vocal pedagogy, making the term somewhat confusing and at times controversial within the field of singing. Vocal pedagogists may use the term vocal register to refer to any of the following:

Manuel Garcia II was one of the first to develop a scientific definition of registers, and his 1894 definition is still used by pedagogues and vocal teachers today:

A register is a series of homogeneous sounds produced by one mechanism, differing essentially from another series of equally homogeneous sounds produced by another mechanism.

Clifton Ware's 1998 definition is also commonly cited.

A series of distinct, consecutive, homogeneous vocal tones that can be maintained in pitch and loudness throughout a certain range.

A register consists of the homogeneous tone qualities produced by the same mechanical system, whereas registration is the process of using and combining the registers to achieve artistic singing. For example, a skilled singer moving through their range and dynamics smoothly so that register changes are difficult to notice could be described as good or clean registration.

The term register originated in the 16th century. As teachers started to notice how different the ranges on either side of the passaggi (or breaks in the voice) were, they began to make comparisons to different sets of pipes (or "registers") in an organ. Before then, they referred to different "voices".