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[Improved measurement of vocal penetration]
1Phoniatrisch-Pädaudiologische Abteilung, Hals-Nasen-Ohrenklinik, Universität Rostock, Deutschland.
Summary
Vocal penetration measures speech clarity and is crucial for effective communication. Healthy voices exhibit higher vocal penetration (12-24 dB AS) than those with vocal disorders (0-12 dB AS).
Area of Science:
- Audiology
- Speech-Language Pathology
- Voice Science
Context:
- Assessing vocal efficiency is crucial for effective communication, particularly for recipients.
- Understanding the recipient's perception of speech in noisy environments is key.
- Vocal penetration quantifies how well speech is perceived against masking noise.
Purpose:
- To measure vocal penetration as a key indicator of vocal efficiency.
- To establish normative values for vocal penetration in healthy individuals and those with vocal disorders.
- To evaluate vocal penetration as a tool for monitoring treatment efficacy and predicting vocal capacity.
Summary:
- Vocal penetration is measured in decibels (AS) based on the masking noise level at which 50% of spoken logatomes are recognized.
- Healthy individuals typically exhibit vocal penetration between 12-24 dB (AS) (average 20 dB AS).
- Patients with vocal disorders show significantly lower vocal penetration, ranging from 0-12 dB (AS) (average 9 dB AS).
Impact:
- Vocal penetration correlates with auditory features of the vocal 'swinging-in' phase.
- It serves as a sensitive indicator for treatment efficacy in dysphonia.
- This measurement is a valuable tool for predicting vocal capacity in professional voice users.