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Harmonics-to-Noise Ratio as a Measure of Voice Noise

The spectral member of the perturbation trio: how much of the signal's energy sits in the harmonic series versus in aperiodic noise from turbulent leakage. It connects back to the breathy end of the phonation continuum with a measurable quantity, and completes the set of three voice-quality measures the seed paper explicitly did not collect.

Questions this Concept answers

  • Why does incomplete closure of the vocal folds lower the harmonics-to-noise ratio?