The articulatory system is responsible for generating additional [[sound]] and shaping the spectral content of the [[sound]] produced by the [[phonatory system]]. The articulators are the moving parts of the [[supra-laryngeal vocal tract]] and include the larynx, uvula, tongue, teeth, and lips. The speech sounds produced by the articulatory system can be classified according to the [[manner of articulation]] or the [[place of articulation]].