Vibrato is not simply a function of the larynx. Along with this tension change is a variation in the thickness of the folds. The tension of the vocal folds is varied rhythmically, creating movement in pitch. The oscillations that occur in vibrato are the body's reflexive response to mounting tension, and are believed to be the result of the healthy function of the vocal folds. It occurs naturally in order to protect the vocal folds. When we lift or hold a heavy object for a long period of time, we'll often experience a periodic but constant shaking of the muscles that are being used.) In other words, the muscles of the larynx begin to pulse rhythmically in response to tension and subglottic pressure, and that produces the characteristic vibrato sound. (Consider how muscles elsewhere in the body, such as those in our arms, begin to shake when strain or tension is prolonged. When this balance occurs, the antagonistic muscle systems develop an alternating pulse that is a reflection of the continued energy level required of them to maintain equilibrium and muscular health. Vibrato is the result of a balance between muscle systems in antagonistic relation to each other during phonation. It is generally assumed to result from neuromuscular excitation of the laryngeal mechanism. The parameters of vibrato include pitch excursion (oscillation), the temporal rate (cycles per second), and amplitude variance.Īlthough the purpose of vibrato is not completely understood, most voice scientists agree that vibrato enters vocal production as a relaxant principle because the body has a need for periodic muscle relaxation during heavy-duty or intense vocal activity, such as when singing sustained notes at high pitches. (It is more difficult to maintain exact pitch on a sustained note when singing in a 'straight tone'.) When vibrato is permitted to take free-swinging pitch excursion, it actually acts as a centering intonation device. The pitch variance remains centered around the actual written pitch, and the listener automatically hears the average of the pitches being sung. The effect is believed to add warmth to the voice.Īlthough vibrato is perceived as a pitch variant, it is discerned as a vocal timbre, or as an integral part of tone, evenly distributed over the group of notes, rather than as a pitch deviation. This periodic variation in the pitch (frequency) of a sustained musical note or tone should not exceed a semitone either way from the note itself. Réservation de billets aériens et terrestres.In vibrato, the voice is alternating subtly and very quickly between two pitches that are very close together. Quelle: : Avec le Quer-durchs-Land-Ticket, voyagez en illimité une journée entière seul(e) ou en groupe partout en Allemagne sur tous les trains régionaux. Le système de réservation vous proposera un Quer-durchs-Land-Ticket. Travel at great low prices with your Quer-durchs-Land-Ticket: Quelle: : Grâce au Saarland-Ticket, vous voyagez, avec un maximum de 5 personnes par ticket, toute une journée sur tous les trains régionaux et les transports publics de la Sarre et de la Rhénanie-Palatinat. Up to 4 accompanying people may join the journey for just EUR 8.00 supplement each. Quelle: : Travel one day through Germany with the Quer-Durchs-Land-Ticket using DB Bahn's regional trains for just EUR 44.00. Ticket details Quer-Durchs-Land-Ticket Your ticket is valid for as many journeys as you want in Germany during its period of validity, regardless of the connection indicated.Ĭaractéristiques du billet Quer-Durchs-Land-Ticket Votre billet est valable pour un nombre illimité de trajets dans toute l'Allemagne durant la période de validité indiquée, indépendamment de la liaison figurant sur le billet.
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