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Relations between vocal registers in voice breaks Gerrit Bloothooft Mieke van Wijck Peter Pabon UiL-OTS Utrecht University.

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Presentation on theme: "Relations between vocal registers in voice breaks Gerrit Bloothooft Mieke van Wijck Peter Pabon UiL-OTS Utrecht University."— Presentation transcript:

1 Relations between vocal registers in voice breaks Gerrit Bloothooft Mieke van Wijck Peter Pabon UiL-OTS Utrecht University

2 Eurospeech Scandinavia 01Voice Breaks2 A sudden change in vocal register (modal  falsetto) Spontaneous (puberty) Voluntary (yodel, …)

3 Eurospeech Scandinavia 01Voice Breaks3 Theories Acoustic mismatch between sub- and supraglottal resonances Non-linear behavior of vocal folds in register overlap area –same conditions determine two different modes

4 Eurospeech Scandinavia 01Voice Breaks4 Question Acoustic features before and after a voice break (F 0 and SPL) Start conditions, target conditions

5 Eurospeech Scandinavia 01Voice Breaks5 Experiment Seven untrained male subjects 1783 modal – falsetto breaks 853 falsetto -modal breaks Phonetogram framework SPL & F 0 measurement

6 Eurospeech Scandinavia 01Voice Breaks6 Vocal Registers in Phonetogram Modal register Falsetto register Overlap SPL (dB) Fundamental Frequency (Hz)

7 Eurospeech Scandinavia 01Voice Breaks7 Break requests Controlled start condition (modal) –F 0 = 196 Hz –F 0 = 293 Hz –F 0 = 392 Hz –With maximum range of SPL No conditions for falsetto start “Let it happen”

8 Eurospeech Scandinavia 01Voice Breaks8 Starts in Modal register SPL (dB) Fundamental Frequency (Hz)

9 Eurospeech Scandinavia 01Voice Breaks9 Fundamental Frequency (Hz) Modal  Falsetto /u/ SPL (dB) Modal start Falsetto result

10 Eurospeech Scandinavia 01Voice Breaks10 Modal – Falsetto observations Wide range of possible starts in modal register, also outside register overlap area About equal SPL in modal and falsetto Very limited falsetto SPL-F 0 result region, within register overlap area The latter two conditions determine size of F 0 jump

11 Eurospeech Scandinavia 01Voice Breaks11 Starts in Falsetto register SPL (dB) Fundamental Frequency (Hz)

12 Eurospeech Scandinavia 01Voice Breaks12 Falsetto  Modal /u/ SPL (dB) Modal result Falsetto start Fundamental Frequency (Hz)

13 Eurospeech Scandinavia 01Voice Breaks13 Falsetto- Modal observations Very limited falsetto SPL-F 0 start region, within register overlap area About equal SPL in falsetto and modal Octave jump preference, result outside register overlap area

14 Eurospeech Scandinavia 01Voice Breaks14 Voice Break Limitations SPL (dB) Fundamental Frequency (Hz) Very limited start and result area in falsetto register Wide range in modal register

15 Eurospeech Scandinavia 01Voice Breaks15 Conclusions Vowel independency excludes coupling effect Non-linear properties of vocal folds are best candidates, but should be extended to non-overlapping modal area

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