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	聴覚心理学的マスキング	線形予測符号化
分野	音響学	音響学
系統	Process / pipeline	Process / pipeline
提唱年	1961	1975
提唱者	Eberhard Zwicker	Freddy Burg, John Makhoul
種類	Perceptual model for audio systems	Predictive speech coding and analysis
原典	Zwicker, E., & Scharf, B. (1965). Psychoacoustics: Facts and Models. Springer-Verlag. ISBN: 978-3540631644	Makhoul, J. (1975). Linear prediction: A tutorial review. Proceedings of the IEEE, 63(4), 561–580.
別名	masking, temporal masking, frequency masking, auditory masking	LPC, autoregressive model, speech prediction, vocal tract modeling
関連	5	5
概要	Psychoacoustic masking describes how the human auditory system suppresses the perception of weak sounds in the presence of stronger sounds. Formalized by Eberhard Zwicker in the 1960s, masking is a fundamental phenomenon in hearing and the basis for perceptual audio coding (MP3, AAC, OPUS). Masking occurs both in frequency (spectral masking) and time (temporal masking), and understanding these effects enables efficient audio compression and realistic sound design.	Linear Predictive Coding (LPC) is a powerful signal processing technique for modeling and compressing speech by assuming each speech sample can be predicted from a linear combination of previous samples. Pioneered by Burg and Makhoul in the 1970s, LPC is the foundation of speech codecs, speech synthesis, speaker recognition, and speech enhancement. LPC exploits the time-correlated structure of speech to achieve high compression ratios and enable efficient parameter extraction.