The invention provides a sound processing method applied to an electronic device capable of playing sound. The method comprises the following steps: when the sound playing of the electronic device satisfies a first preset condition, playing the sound in a first playing mode by adjusting parameters of a sound transmission medium. It can be seen from the above contents that, in the sound processingmethod, when the sound playing of the electronic device satisfies the first preset condition, the sound is played in the first playing mode by adjusting parameters of the sound transmission medium, thereby achieving a low frequency extension effect and improving the sound quality of the played sound.