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Journal of Speech and Hearing Research Vol.32 556-565 September 1989.
© American Speech-Language-Hearing Association
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Spectral Correlates of Glottal Voice Source Waveform Characteristics

Jan Gauffin 1
Johan Sundberg 1
1 Royal Institute of Technology, Stockholm

The relationships between the waveform and the spectrum of the pulsating transglottal airflow during vowel phonation are analyzed in singers and nonsingers. The waveform, called the flow glottogram, is analyzed by means of inverse filtering, and the spectrum is determined either directly, by submitting the flow glottogram to spectrum analysis, or indirectly, by measuring spectral changes accompanying phonatory changes under conditions of constant vowel articulation. The peak-to-peak amplitude of the flow glottogram pulses shows a strong relationship with the amplitude of the source spectrum fundamental and varies considerably during phonation, presumably depending on the degree of glottal ab/adduction. The negative peak amplitude of the differentiated flow glottogram shows a high correlation with the sound pressure level of the vowel.

KEY WORDS: voice, source spectrum, source waveform

Submitted on October 19, 1987
Accepted on September 27, 1988






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