Title :
A matrix approach for transcoding modulated lapped transforms
Author :
Mansour, Mohamed F.
Author_Institution :
DSP Solutions R&D Center, Texas Instrum. Inc., Dallas, TX, USA
Abstract :
We derive compact systolic structures for the transcoding of critically sampled modulated lapped transforms (MLT´s) of equal and rational sizes. The structures include two modules for DCT-IV computation and an intermediate module for all windowing/reordering operations. The proposed structure is highly regular and provides theoretical and practical insights for this transcoding problem.
Keywords :
discrete cosine transforms; matrix algebra; transcoding; DCT; compact systolic structure; discrete cosine transform; modulated lapped transform; reordering operation; transcoding problem; windowing operation; Computer architecture; Digital signal processing; Filter bank; Instruments; Matrix converters; Matrix decomposition; Modulation coding; Research and development; Symmetric matrices; Transcoding; Cosine modulated Filter bank; Modulated lapped transform; transcoding;
Conference_Titel :
Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on
Conference_Location :
Dallas, TX
Print_ISBN :
978-1-4244-4295-9
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2010.5495523
