Encoding method, decoding method and related device

Abstract

Embodiments of the present application provide an encoding method, a decoding method and related device. The method includes the following steps: determining a spectrum corresponding to an audio signal by using a modified discrete cosine transform (MDCT); dividing the spectrum into N subband(s); determining at least one first MDCT coefficient in an ith subband among the N subband(s), where an energy of the first MDCT coefficient is greater than or equal to a target energy, the target energy is determined according to a threshold and a full energy of the ith subband, i =

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