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Artificial pitch changing in auditory feedback as a possible method in voice training and therapy
1Institute of Speech Communication and Voice Research, University of Tampere, Finland.
Summary
Altering auditory feedback pitch during reading can influence vocal pitch, potentially aiding voice training. However, effectiveness varies, especially for individuals with existing pitch issues.
Area of Science:
- Auditory Neuroscience
- Speech Science
- Voice Pedagogy
Background:
- Altering auditory feedback is a method explored to modify vocal production.
- Understanding how real-time pitch manipulation affects fundamental frequency is crucial for voice control research.
Purpose of the Study:
- To investigate the impact of artificially altered auditory feedback on the fundamental frequency (F0) during text reading in normal-hearing individuals.
- To assess the efficacy of pitch-shifted auditory feedback for voice training applications.
Main Methods:
- Participants (n=28) read text under normal conditions and with real-time pitch-shifted auditory feedback via headphones.
- Fundamental frequency variations were analyzed during reading tasks.
- Subjects included individuals with normal hearing, speech trainers, singers, and those with non-optimal speaking pitch.
Main Results:
- Most participants increased their reading pitch when auditory feedback pitch was altered.
- Pitch changes induced by feedback manipulation were generally larger than natural variations in repeated readings.
- Individuals with pre-existing pitch problems showed varied responses, with some not changing pitch or altering it inappropriately.
Conclusions:
- Real-time pitch-shifted auditory feedback can influence vocal pitch in normal-hearing individuals.
- The method shows potential for voice training, but its effectiveness is limited and requires further investigation, particularly for individuals with vocal pitch issues.