Title :
A Generic IP Core of the Identical Forward and Inverse 12/36-Point MDCT Architecture and an Architectural Model Simulation Toolbox
Author_Institution :
Slovak Acad. of Sci., Bratislava
Abstract :
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.
Keywords :
audio signal processing; field programmable gate arrays; mathematics computing; FPGA; MATLAB environment; MDCT architecture; architectural model simulation toolbox; digital audio signals; generic IP core; Audio compression; Computational modeling; Computer architecture; Digital audio players; Discrete cosine transforms; Discrete transforms; Hardware; Informatics; Mathematical model; Transform coding;
Conference_Titel :
Electronics, Circuits and Systems, 2007. ICECS 2007. 14th IEEE International Conference on
Conference_Location :
Marrakech
Print_ISBN :
978-1-4244-1377-5
Electronic_ISBN :
978-1-4244-1378-2
DOI :
10.1109/ICECS.2007.4511090
