METHOD AND APPARATUS FOR ENCODING AND DECODING NOISE SIGNAL

摘要

Provided is a method and apparatus for encoding/decoding an audio signal. Sections which are not used to output noise components near important spectral components and sub-bands which are not used to output noise components, are determined to be encoded or decoded, so that the efficiency of encoding and decoding an audio signal increases, and sound quality can be improved using less bits.

主权项

1. A noise filling apparatus comprising:
a processor configured to: select a subband that noise filling is applied to, from among a plurality of subbands, based on bit allocation of spectrum coefficients; obtain a noise parameter of the selected subband; and generate noise components, based on the noise parameter.