Biphonation in voice signals

Journal Article · Sat Jun 01 00:00:00 EDT 1996 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.51002· OSTI ID:401108

Herzel, H ^[1]; Reuter, R ^[2]

---

1. Institute of Theoretical Physics, Technical University, Hardenbergstr. 36, Sekr. PN 7-1, D-10623 Berlin (Germany)
2. Institute of Electronics, Technical University, Einsteinufer 17, D-10587 Berlin (Germany)

Irregularities in voiced speech are often observed as a consequence of vocal fold lesions, paralyses, and other pathological conditions. Many of these instabilities are related to the intrinsic nonlinearities in the vibrations of the vocal folds. In this paper, a specific nonlinear phenomenon is discussed: The appearance of two independent fundamental frequencies termed biphonation. Several narrow-band spectrograms are presented showing biphonation in signals from voice patients, a newborn cry, a singer, and excised larynx experiments. Finally, possible physiological mechanisms of instabilities of the voice source are discussed. {copyright} {ital 1996 American Institute of Physics.}

• OSTI ID: 401108
• Report Number(s): CONF-950730-; ISSN 0094-243X; TRN: 96:029488
• Journal Information: AIP Conference Proceedings, Vol. 375, Issue 1; Conference: 3. technical conference on nonlinear dynamics (chaos) and full spectrum processing, Mystic, CT (United States), 10-13 Jul 1995; Other Information: PBD: Jun 1996
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
SPEECH
DYNAMICS
SIGNALS
HARMONICS
ATTRACTORS
INSTABILITY
BIFURCATION
VOICES
VOCAL CORDS
VOCAL TRACT