Vocal Analysis Related to Changes in Frequency of Pure Tone Auditory Feedback
Yonsei Medical Journal
;
: 610-614, 2008.
Article
in English
| WPRIM
| ID: wpr-167113
ABSTRACT
PURPOSE:
Many studies have shown that subjects show a change of vocal fundamental frequency (F0) when phonating subjects hear their vocal pitch feedback shifted upward or downward. This study was performed to demonstrate whether vocal parameters [F0, intensity, jitter, shimmer, and noise to harmonic ratio (NHR)] in normal males respond to changes in frequency of pure tone masking. MATERIALS andMETHODS:
Twenty healthy male subjects participated in this study. Subjects vocalized /a/ vowel sounds while listening to a pitch- shift pure tone through headphones (upward pitch-shift in succession 1kHz to 2kHz and 1kHz to 4kHz at 50dB or 80dB, respectively, downward pitch-shift in succession 1kHz to 250Hz and 1kH to 500Hz at 50dB or 80dB, respectively).RESULTS:
Vocal intensity, F0, was increased, whereas jitter was decreased as the pitch of pure tone was shifted upward. However, there was no correlation between shimmer and NHR with pitch-shift feedback for pure tones. Unlike vocal pitch- shift feedback in other studies, upward pitch-shift feedback of pure tones caused the vocal F0 and intensity to change in the same direction as pitch-shift.CONCLUSION:
The results of this study demonstrated that auditory kinesthetic feedback is affected by pitch-shift in pure tone.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pitch Perception
/
Voice
/
Acoustic Stimulation
/
Feedback
Limits:
Adult
/
Humans
/
Male
Language:
English
Journal:
Yonsei Medical Journal
Year:
2008
Type:
Article
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