Decimator and decimating method for multi-channel audio

Abstract

A decimator is used to process a multi-channel audio signal, and includes a memory, a controller and a processing unit. The processing unit is used to decimate each input audio component of a multi-channel audio signal to generate corresponding multi-channel operational data. The controller is used to control read and write actions for each audio component of the multi-channel audio signal and the multi-channel operational data into or from the memory. The memory provides a digital signal process for decimation together with the processing unit. The input of the multi-channel audio and the output of the multi-channel operational data are performed through time division. Compared with conventional decimator circuits, the decimator circuit of the present invention reduces the cost and the power consumption of the hardware circuitry.

Dependencies are inferred from the claim text.