Encoding device of broadband device, prediction of LSP bandwidth, bandwidth scalable encoding device, encoding method of broadband.

摘要

"Encryption device of broadband device, prediction of LSP bandwidth, bandwidth scalable encoding device, encoding method of broadband".The present invention relates to a device for prediction of LSPs of broadband and others capable of predicting a LSPs bandwidth of a narrow band LSPs with a high efficiency of quantization and a high precision, at the same time, suppresses the size of a conversion table. Correlating the LSPs narrowband to broadband LSPs.In the device, a unit for predicting nonlinear (102) performs nonlinear prediction by the use of a wide band LSPs converted introduced a unit conversion of the narrow band / broadband (101) and introduces the result of prediction in a non-linear amplifier (103). The LSPs broadband converted is introduced in an amplifier (104).An adder (122) adds results of the multiplication (vector) input amplifiers (103, 104).