Patent ID: 9711159
Date: 2017-07-18
CPC Classifications: G10L,G11C

Claim:
1. A method for integrally encoding a speech signal and an audio signal, executed by a computer, the method comprising: analyzing a characteristic of an input signal whether the input signal is an audio characteristic signal or a speech characteristic signal; applying a Spectral Band Replication (SBR) to the input signal; generating information for expanding the input signal; encoding the input signal applied to the SBR based on the characteristic of the input signal; generating a bitstream using an encoding result, wherein the encoding of the input signal is performed by one of encoding a core band of the input signal using a time-domain encoding module, when the input signal is the speech characteristic signal and encoding the core band of the input signal using a transform encoding module, when the input signal is the audio characteristic signal, wherein the core band is a frequency band of the input signal which is not expanded in the input signal, and wherein an output of the SBR with respect to the input signal is transmitted to the time-domain encoding module or the transform encoding module according to the characteristic of the input signal being the audio characteristic signal or the speech characteristic signal.