Leonardo FUKS , Britta HAMMARBERG, Johan SUNDBERG : A self-sustained vocal-ventricular phonation mode: acoustical, aerodynamic and glottographic evidences

A self-sustained vocal-ventricular phonation mode: acoustical, aerodynamic and glottographic evidences

Authors
Leonardo Fuks, Britta Hammarberg, Johan Sundberg
Publication date
1998/3
Journal
KTH TMH-QPSR
Volume
3
Issue
1998
Pages
49-59
Description
This investigation describes various characteristics of a particular phonation mode, vocal-ventricular mode (VVM), as produced by a healthy, musically-trained subject. This phonation mode was judged as perceptually identical to that used in the Tibetan chant tradition. VVM covered a range close to an octave, starting at about 50 Hz. High-speed glottography revealed that the ventricular folds oscillated at half the frequency of the vocal folds thus yielding a frequency of f/2. Phonation at f/3 was also possible. Presumably, aerodynamic forces produced by the glottal flow pulses sustained the vibrations of the ventricular folds. Complementary aspects of this type of phonation were compared to phonation in modal and pulse registers by acoustical analysis of the audio signal, by inverse filtering of the flow signal and by electroglottography (EGG). In addition, oesophageal pressures were measured. These analyses …
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LEONARDO FUKS : Sundry Sounds produced by Leonardo Fuks and other examples

VVM phonation mode, physical model (by L.Fuks)


This is a simplified physical model proposed by me for the larynx during VVM phonation mode, which produces similar sounds to those from the Tibetan Chant tradition. Below, the vocal folds (m1,m2) and above, the false or ventricular folds (m3). In this example, vocal folds oscillate at a frequency which is twice as that of the ventricular folds. The letters m stand for mass, k for stiffness, and r for damping coefficient. Indexes r-l stand for left and right sides, respectively.

Sundry Sounds produced by Leonardo Fuks and other examples

During my research work in music acoustics I created/recorded/processed some gigabytes of sound files, most of them of no musical interest for the listener.
However, a few of them might be listened by tolerant and attentive ears. They are presented below.
The first group of sound files refers to Paper VI of my thesis, which are identified with the Tibetan Chant voice, and other extended vocal effects investigated in the paper.

FILES IN REAL AUDIO FORMAT

Vocal-ventricular sounds (used in Tibetan and Mongolian “undertone” singing):
0.Original sounds from the Gyuto Monastery, Tibet

1.Fixed fundamental and sweeping overtones
2.f0/2 and f0/3 VVM
3. An imitation of a Tibetan Chant context (rather similar to 0, above)

4. Popeye the Saylor used VVM !! (an original recording from a William Costello’s version)
5. VVM and flute improvisation
6. Overtone singing in VVM mode, melody of “Oh, Susanah” (see the spectrogram)

Periodic pulse register , see Paper VI
7. Alternation between pulse register (“fry”) and modal voice
8. “Vocal fry” at fo/1,fo/2, fo/3, f0/4, fo/5 & back to 1

Vocal Growl (co-oscillation of vocal folds and epiglottis)-similar to the mechanism used by Louis Armstrong

9. Periodic Growl, in f0/2 and fo/3, with overtone singing

Tarogato (wooden saxophone from Hungary)
10.Tarogato(from the theme of Ravel’s La Valse)

A piece for OBOE called “My Six Marigaux 10499’s”, recorded in 6 channels
11.6oboes

All recordings, excepted by numbers 0 (Gyuto Monks, Tibet) and 4 (Popeye, W. Costello) are performed by Leonardo Fuks

To the THESIS INTRODUCTION – FROM AIR TO MUSIC: Acoustical, Physiological and Perceptual Aspects of Reed Wind Instrument Playing and Vocal-Ventricular Fold Phonation

http://www.speech.kth.se/music/publications/leofuks/leosounds.html

HTML by Leonardo Fuks

Last update 98.12.30

Sundry Sounds produced by Leonardo Fuks and other examples

VVM phonation mode, physical model (by L.Fuks)


This is a simplified physical model proposed by me for the larynx during VVM phonation mode, which produces similar sounds to those from the Tibetan Chant tradition. Below, the vocal folds (m1,m2) and above, the false or ventricular folds (m3). In this example, vocal folds oscillate at a frequency which is twice as that of the ventricular folds. The letters m stand for mass, k for stiffness, and r for damping coefficient. Indexes r-l stand for left and right sides, respectively.

Sundry Sounds produced by Leonardo Fuks and other examples

During my research work in music acoustics I created/recorded/processed some gigabytes of sound files, most of them of no musical interest for the listener.
However, a few of them might be listened by tolerant and attentive ears. They are presented below.
The first group of sound files refers to Paper VI of my thesis, which are identified with the Tibetan Chant voice, and other extended vocal effects investigated in the paper.

FILES IN REAL AUDIO FORMAT

Vocal-ventricular sounds (used in Tibetan and Mongolian “undertone” singing):
0.Original sounds from the Gyuto Monastery, Tibet

1.Fixed fundamental and sweeping overtones
2.f0/2 and f0/3 VVM
3. An imitation of a Tibetan Chant context (rather similar to 0, above)

4. Popeye the Saylor used VVM !! (an original recording from a William Costello’s version)
5. VVM and flute improvisation
6. Overtone singing in VVM mode, melody of “Oh, Susanah” (see the spectrogram)

Periodic pulse register , see Paper VI
7. Alternation between pulse register (“fry”) and modal voice
8. “Vocal fry” at fo/1,fo/2, fo/3, f0/4, fo/5 & back to 1

Vocal Growl (co-oscillation of vocal folds and epiglottis)-similar to the mechanism used by Louis Armstrong

9. Periodic Growl, in f0/2 and fo/3, with overtone singing

Tarogato (wooden saxophone from Hungary)
10.Tarogato(from the theme of Ravel’s La Valse)

A piece for OBOE called “My Six Marigaux 10499’s”, recorded in 6 channels
11.6oboes

All recordings, excepted by numbers 0 (Gyuto Monks, Tibet) and 4 (Popeye, W. Costello) are performed by Leonardo Fuks

To the THESIS INTRODUCTION – FROM AIR TO MUSIC: Acoustical, Physiological and Perceptual Aspects of Reed Wind Instrument Playing and Vocal-Ventricular Fold Phonation

HTML by Leonardo Fuks

Last update 98.12.30

http://www.speech.kth.se/music/publications/leofuks/leosounds.html