Patent ID: 8438017
Filing Date: 2013-05-07
Classification: G10L

Abstract:
1. A method of encoding an audio signal, the method comprising: determining a window to be applied to a current frame according to whether a transient section is present in the current frame; performing windowing by applying the window to the audio signal in the current frame; outputting a linear predictive coding (LPC) coefficient of the audio signal in the current frame by performing LPC analysis on the audio signal in the current frame; and interpolating the LPC coefficient of the audio signal in the current frame and an LPC coefficient of the audio signal in an adjacent frame in order to generate an interpolated LPC coefficient if it is determined that the transient section is not present in the current frame, and wherein the LPC coefficient of the audio signal in the current frame and the LPC coefficient of the audio signal in the adjacent frame are not interpolated if the transient section is present in the current frame.