Estill Voice Training
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| Abbreviation | EVT |
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Parent organization
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Estill Voice International, LLC |
Estill Voice Training (often abbreviated EVT) is a programme for developing vocal skills based on deconstructing the process of vocal production into control of specific structures in the vocal mechanism. By acquiring the ability to consciously move each structure the potential for controlled change of voice quality is increased.
British speech and language therapist Sara Harris writes:
The work allows singing/voice teachers, voice coaches, and speech and language therapists to identify and resolve specific vocal problems that have resulted in fatigue or damage to the vocal folds. Many of the manoeuvers are already familiar to speech therapists as they have been adapted from traditional techniques but synthesized into an extremely creative system. The application of the system to dysphonic patients produces excellent results and the therapist will gain great confidence in their own voice use having mastered the manoeuvres and qualities themselves.
The system was established in 1988 by American singing voice specialist Jo Estill, who had been researching in this field since 1979. Estill's research led to a series of vocal manoeuvres to develop specific control over individual muscle groups within the vocal mechanism. Soto-Morettini quotes Estill as saying the great strength of her method is that it can be used for any style of music, and speech and language therapists describe the exercises as valuable to voice therapy as well as singing, in both professional and non-professional voice use, offering an approach for therapeutic intervention. Estill Voice Training is a trademark of Estill Voice International, LLC.
Power, Source and Filter: Estill Voice Training partitions the vocal system into the three components power, source and filter extending the existing source-filter model of speech production. 'Power' is the source of energy producing the sound (typically the respiratory system causing air to be expelled from the lungs). 'Source' is the component that vibrates to create the sound waves (the vocal folds). 'Filter' is the shaping of the sound waves to create the final result (the vocal tract). The focus of Estill Voice Training is on the source and filter components of the vocal system and the interactions between them.
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