Methoden vergleichen

	Lineare Prädiktive Kodierung	Psychoakustische Maskierung
Fachgebiet	Akustik	Akustik
Familie	Process / pipeline	Process / pipeline
Entstehungsjahr	1975	1961
Urheber	Freddy Burg, John Makhoul	Eberhard Zwicker
Typ	Predictive speech coding and analysis	Perceptual model for audio systems
Wegweisende Quelle	Makhoul, J. (1975). Linear prediction: A tutorial review. Proceedings of the IEEE, 63(4), 561–580.	Zwicker, E., & Scharf, B. (1965). Psychoacoustics: Facts and Models. Springer-Verlag. ISBN: 978-3540631644
Aliasnamen	LPC, autoregressive model, speech prediction, vocal tract modeling	masking, temporal masking, frequency masking, auditory masking
Verwandt	5	5
Zusammenfassung	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.	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.