Abstract—This paper explores subband coding and the appli- cation of filter banks. First, the fundamentals of multirate systems will be reviewed. Next, the classic quadrature mirror filter bank is presented along with a discussion on how to eliminate all forms of distortion. An example of subband coding will be presented that utilizes…
Abstract—Gain structures in digital filters are a source of product quantization noise due to finite wordlength. With certain assumptions, this gain structure’s noise can be modeled as a white noise source. This paper seeks to explore the effects of product quantization in the HVXC Decoder for the MPEG-4 Audio3 standard. The filter of interest…