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Articulatory Synthesis of Singing

Explore the comprehensive articulatory speech synthesizer developed at the University of Rostock for singing synthesis, including rule-based creation of gestural scores, pitch-dependent supraglottal articulation, and pitch effects like vibrato and overshoot.

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Articulatory Synthesis of Singing

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  1. Articulatory Synthesis of Singing Peter Birkholz Institute for Computer Science, University of Rostock Singing Synthesis Challenge 2007 at the Interspeech‘07, Antwerp

  2. Introduction • Our synthesis of singing is based on a comprehensive articulatory speech synthesizer that was developed at the University of Rostock since about 2001 (Birkholz et al. 2004-2007). • The synthesizer comprises a geometrical model of the vocal tract, and modules for articulatory control and the aero-acoustic simulation. • The input for the synthesizer is a gestural score. • For the synthesis of singing, the synthesizer has been extended by... • a rule-based creation of gestural scores from musical scores • an implementation of pitch-dependent supraglottal articulation • the incorporation of pitch effects like vibrato and overshoot Articulatory Synthesis of Singing

  3. The articulatory speech synthesizer (1) Articulatory Synthesis of Singing

  4. The articulatory speech synthesizer (2) Articulatory Synthesis of Singing

  5. From musical scores to gestural scores • An inherent duration is assigned to each speech sound • Reduced consonant duration in consonant clusters • Pitch transitions and supraglottal transitions towars the first phone in a syllable start at the same time • „Phase rules“ determine the coordination of glottal and supraglottal gestures Articulatory Synthesis of Singing

  6. Pitch-dependent supraglottal articulation (1) • Why? Look at the transfer function and the harmonics of the voice source for the vowel /i:/ at 110 Hz and 440 Hz: Articulatory Synthesis of Singing

  7. Pitch-dependent supraglottal articulation (2) • As soon as F0 exceeds F1, the articulation is adapted in such a way that F1 follows approximately F0 (Sundberg, 1975) Articulatory Synthesis of Singing

  8. Pitch effects • The pitch contour is defined in terms of pitch targets according to Xu et al. (2006, 2007) • Approximation of these targets is realized using 3rd order dynamical systems • Pitch effects: Vibrato, overshoot, preparation (Saitou et al., 2004) Articulatory Synthesis of Singing

  9. And now: The Synthesizer Song ! • „Dona nobis pacem“: • The Synthesizer Song: Articulatory Synthesis of Singing

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