A Generic IP Core of the Identical Forward and Inverse 12/36-Point MDCT Architecture and an Architectural Model Simulation Toolbox

Compression of digital audio signals has become very important audio computation process. Several compression schemes were developed and well established. Most of them adopt the MDCT/IMDCT. This paper presents a new FPGA-based generic IP core of an identical forward and inverse 12/36-point MDCT architecture and a new architectural model simulation toolbox. Several IP core parameters, that can be set by user, modify the data and constants´ bitwidth and the number of parallel computation units used in the architecture. The architectural model simulation toolbox calculates the output computation precision and the estimated area of the architecture with parameters set by user. The toolbox was developed to speed up the process of finding the optimal parameters and is executable in the MATLAB environment.