Perceptual coding was first used for speech coding compression, with linear predictive coding (LPC). Initial concepts for LPC date back to the work of Fumitada Itakura (Nagoya University) and Shuzo Saito (Nippon Telegraph and Telephone) in 1966. During the 1970s, Bishnu S. Atal and Manfred R. Schroeder at Bell Labs developed a form of LPC called adaptive predictive coding (APC), a perceptual coding algorithm that exploited the masking properties of the human ear, followed in the early 1980s with the code-excited linear prediction (CELP) algorithm which achieved a significant compression ratio for its time. Perceptual coding is used by modern audio compression formats such as MP3 and AAC.
Perceptual coding was first used for speech coding compression with linear predictive coding (LPC) Initial concepts for LPC date back to the work of Fumitada Itakura (Nagoya University) and Shuzo Saito (Nippon Telegraph and Telephone) in 1966 During the 1970s Bishnu S Atal and Manfred R Schroeder at Bell Labs developed a form of LPC called adaptive predictive coding (APC) a perceptual coding algorithm that exploited the masking properties of the human ear followed in the early 1980s with the code-excited linear prediction (CELP) algorithm which achieved a significant compression ratio for its time Perceptual coding is used by modern audio compression formats such as MP3 and AAC