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  • Laukkanen, AM., et al. (author)
  • Peak-to-Peak Glottal Flow Amplitude as a Function of F(0)
  • 2008
  • In: Journal of Voice. - : Elsevier BV. - 0892-1997 .- 1873-4588. ; 22:6, s. 614-621
  • Journal article (peer-reviewed)abstract
    • This study investigated the peak-to-peak (p-t-p) amplitude of the voice source as a function of fundamental frequency (F(0)). Nine males and nine females with or without singing training produced (1) a glissando from lowest to highest F(0) and back in their speaking range on /a:/ and (2) an ascending-descending scale pattern on /pa:pa:/. Audio and airflow signals were recorded, the latter picked up from a pneumotach mask. F(0) was measured from the audio signal and the oral pressure during the /p/ occlusion for in estimate of subglottal pressure. Airflow signal was inverse filtered and the p-t-p amplitude was measured for 10 F(0) values, equidistantly spaced along the subject's F(0) range in semitones, thus facilitating comparison between individuals and genders. Most females and males showed both a wide range of relatively large p-t-p amplitude in the speech range and a more or less pronounced p-t-p amplitude maximum, which was located on average at 232 and 162 Hz, respectively. The p-t-p amplitude maximum seems to reflect a complicated interplay between factors that tend to increase and those that tend to decrease the p-t-p amplitude with increasing F(0).
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Type of publication
journal article (2)
Type of content
peer-reviewed (2)
Author/Editor
Laukkanen, AM (2)
Sundberg, Johan (1)
Nieminen, MT (1)
Eklund, R (1)
McAllister, A (1)
Ikävalko, T (1)
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Lammentausta, E (1)
Leppävuori, M (1)
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University
Royal Institute of Technology (1)
Karolinska Institutet (1)
Language
English (2)
Research subject (UKÄ/SCB)
Natural sciences (1)

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