关键词: 语言发音, 发音动作, 频谱, 声道

Abstract: This paper studies all kinds of speech production models including speech sound models and speech gesture models. Speech sound models deal with acoustic theory of speech production and reconstruct speech waveform by audio signal processing techniques. Owing to different understanding of the relationship between source and resonator, and different method of resonation analysis, there exist three different speech sound models：Spectrum analysis model, formant model and articulatory model. Speech gesture models focus on the physiological process of speech production, and rebuild speech organ gestures by visual signal processing techniques. According to different method of modeling, there are three speech gesture models：Physiological mechanism model, geometrical feature model and statistical parameter model.

Key words: speech production, articulatory gesture, spectrum, vocal tract