open_dbm/docs/website/versioned_docs/version-2.0/glottal-to-noise-excitation-ratio.md

id, title

id	title
glottal-to-noise-excitation-ratio	Glottal-to-noise Excitation Ratio (GNE)

Glottal-to-noise excitation ratio, as introduced by Michaelis and colleagues¹ , is an indirect measure of breathiness, indicating whether a “given voice signal originates from vibrations in the vocal folds or from turbulent noise generated in the vocal tract.”

Raw Variables

Variable	Description
aco_gne	Glottal-to-noise excitation ratio. Frame-wise measurements of glottal-to-noise excitation ratio.

Derived Variables

Variable	Description
aco_gne_mean	Glottal-to-noise excitation ratio mean. Mean of aco_hnr across the audio file.
aco_gne_std	Glottal-to-noise excitation ratio standard deviation. Standard deviation of aco_gne across the audio file.

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1. Michaelis, D., Gramss, T., & Strube, H. W. (1997). Glottal-to-noise excitation ratio–a new measure for describing pathological voices. Acta Acustica united with Acustica, 83(4), 700-706. ↩︎