METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO/SPEECH SIGNAL

摘要

A method and an apparatus for encoding and decoding an audio/speech signal are provided to encode and decode all of the speech signal, the audio signal, and a signal in which the speech signal and the audio signal are mixed efficiently. A domain converting unit(400) converts an input signal from a time domain to a frequency domain by the first conversion type and the second conversion type. A frequency domain encoding unit(430) encodes the signal converted by the first conversion type in the frequency domain by using the signal converted by the second conversion type.