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Peak-to-Peak Glottal Flow Amplitude as a Function of F(0)
KTH, School of Computer Science and Communication (CSC), Speech, Music and Hearing, TMH, Music Acoustics.
2008 (English)In: Journal of Voice, ISSN 0892-1997, E-ISSN 1557-8658, Vol. 22, no 6, 614-621 p.Article in journal (Refereed) Published
Abstract [en]

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).

Place, publisher, year, edition, pages
2008. Vol. 22, no 6, 614-621 p.
Keyword [en]
Inverse filtering, Subglottic pressure, Acoustic coupling, Optimal pitch, Voice training
National Category
Computer Science Language Technology (Computational Linguistics)
URN: urn:nbn:se:kth:diva-52173DOI: 10.1016/j.jvoice.2007.01.003ISI: 000261160200003PubMedID: 17509822ScopusID: 2-s2.0-55549098181OAI: diva2:465468
tmh_import_11_12_14 QC 20111216Available from: 2011-12-14 Created: 2011-12-14 Last updated: 2011-12-16Bibliographically approved

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