Patent ID: 8290770
Filing Date: 2012-10-16
Classification: G10L

Abstract:
1. A sinusoidal audio coding method comprising: extracting sinusoids of a current frame by performing a sinusoidal analysis on an input audio signal; with respect to each of the extracted sinusoids of the current frame, setting a mode selected from a birth mode in which a sinusoid being set for coding is newly generated irrespective of sinusoids of a previous frame, a continuation mode in which the sinusoid being set for coding is an only sinusoid of the extracted sinusoids of the current frame that is continued from a same sinusoid of the sinusoids of the previous frame, and a branch mode in which the sinusoid being set for coding is one of a plurality of sinusoids of the current frame that are continued from the same sinusoid of the sinusoids of the previous frame; and coding the extracted sinusoids according to the selected mode.