Patent ID: 8489406

Claim:
A stereo encoding method comprising: extracting a current interchannel delay of a stereo signal and a previous interchannel delay of the stereo signal that is adjacent to the current interchannel delay; performing adjustment frame judgment according to characteristics of the stereo signal when the current interchannel delay and the previous interchannel delay are different, wherein the adjustment frame judgment is performed according to energy of the stereo signal, and wherein performing the adjustment frame judgment includes determining that a frame where the current interchannel delay occurs is an adjustment frame when frame energy of the stereo signal is less than a certain set threshold value and determining that the frame where the current interchannel delay occurs is a non-adjustment frame when the frame energy of the stereo signal is greater than or equal to the certain threshold value; and performing an interchannel delay adjustment on the stereo signal by using the current interchannel delay if it is determined that the frame where the current interchannel delay occurs is the adjustment frame.