/ / ENCODING AND DECODING APPARATUS FOR LINEAR PREDICTIVE CODER RESIDUAL SIGNAL OF MODIFIED DISCRETE COSINE TRANSFORM BASED UNIFIED SPEECH AND AUDIO CODING

摘要

Disclosed is an apparatus for encoding and decoding an LPC residual signal of a speech and audio integrated encoder based on MDCT. The apparatus for encoding an LPC residual signal selects an encoding method of a signal filtered with an LPC by analyzing the characteristics of an input signal and encodes the LPC residual signal based on one of a real filterbank, a complex filterbank, and algebraic code excited linear prediction (ACELP).