Abstract: A multimedia processor chip includes: a first re-sampler converting a sample rate of a decoded first audio signal into a first sample rate and outputting the converted first audio signal to a first output buffer; a second re-sampler converting a sample rate of a decoded second audio signal into the first sample rate and outputting the converted second audio signal to a second output buffer; and a mixer mixing the audio signals input from the first output buffer and the second output buffer and outputting the mixed audio signals to an audio converter through a communication unit. Accordingly, it is possible to reduce a processing load of a multimedia processor core to permit a low-power operation and to easily accomplish various audio effects.