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Influence of auditory feedback in the vocal acoustic parameters of individuals without vocal complaints

ABSTRACT

Introduction:

The quality of the vocal emission is dependent on the integrity of the auditory feedback mechanism of the presence of eventual failures is related to the induction of abuse and / or vocal misuse, and therefore of the surgeon of dysphonia.

Purpose:

To evaluate the influence of auditory feedback in voice intensity and frequency in individuals with no vocal complaints.

Methods:

Participants were 40 female subjects without vocal and auditory thresholds within normal standards complaints. Participants underwent an auditory evaluation composed of pure tone audiometry, tympanometry and a vocal acoustic assessment of intensity and frequency parameters, carried out in three stages: before, during and after exposure to white noise.

Results:

There was significant difference in the average of the ratio obtained in intensity and between the threshold of contralateral acoustic reflexes and vocal frequencies in the three moments of acoustic evaluation.

Conclusion:

Thus, the findings suggest that auditory feedback interferes with the control of the intensity and vocal frequency.

Keywords:
Feedback; Auditory perception; Voice quality; Pitch discrimination; Loudness perception

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