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	音響音声学	エレクトロパラトグラフィ
分野	言語学	言語学
系統	Process / pipeline	Process / pipeline
提唱年	1962	1974
提唱者	Peter Ladefoged	William John Hardcastle
種類	Empirical process pipeline	Empirical process pipeline
原典	Ladefoged, P., & Johnson, K. (2006). A Course in Phonetics (5th ed.). Boston: Cengage Learning.	Hardcastle, W. J. (1989). Electropalatography and its clinical applications. In W. J. Hardcastle & A. Marchal (Eds.), Speech Production and Speech Modelling. Dordrecht: Kluwer.
別名	Acoustic Analysis of Speech, Spectrographic Analysis	EPG, Palatal Contact Analysis
関連	3	1
概要	Acoustic Phonetics is the study of the physical properties of speech sounds using instrumentation to measure and analyze sound waves. Pioneered by Peter Ladefoged and Kenneth Stevens, this method uses spectrograms, formant analysis, and waveform measurements to characterize vowels, consonants, and prosodic features with precision. Acoustic phonetics bridges the articulatory world of speech production and the perceptual world of listeners, providing objective, quantifiable data about how speech is produced and perceived.	Electropalatography (EPG) is an instrumental method for measuring tongue-to-palate contact during speech by using a specially designed artificial palate fitted with an array of sensors. Developed by William John Hardcastle in the 1970s, EPG provides detailed real-time visualization of articulation and has applications in phonetic research, speech pathology assessment, and biofeedback training. The method enables precise documentation of articulatory patterns across languages and is especially valuable for analyzing consonants that require palatal contact.