Corpus ID: 34862609

A Note on the MDCT/MDST and Pseudoinverse Matrix

@article{Britanak2004ANO,
  title={A Note on the MDCT/MDST and Pseudoinverse Matrix},
  author={V. Britanak},
  journal={Comput. Artif. Intell.},
  year={2004},
  volume={23},
  pages={205-214}
}
  • V. Britanak
  • Published 2004
  • Computer Science
  • Comput. Artif. Intell.
Abstract. The modified discrete cosine transform (MDCT) and modified discrete sine transform (MDST) both for the evenly and oddly stacked systems are perfect reconstruction cosine/sine–modulated filter banks based on time domain aliasing cancellation (TDAC) employed in the current international audio coding standards and commercial audio compression products. Based on the matrix representation of MDCTs and MDSTs it is shown that the transposed MDCT and MDST matrices are actually the… Expand
Fast computational structures for an efficient implementation of the complete TDAC analysis/synthesis MDCT/MDST filter banks
TLDR
It is shown that the same computational structure can be used both for the encoder and the decoder, thus significantly reducing design time and resources. Expand
On Properties, Relations, and Simplified Implementation of Filter Banks in the Dolby Digital (Plus) AC-3 Audio Coding Standards
  • V. Britanak
  • Mathematics, Computer Science
  • IEEE Transactions on Audio, Speech, and Language Processing
  • 2011
TLDR
It is shown that there exists a simple relation between the time domain aliased data sequence recovered by the backward long (MDCT) and those of two short transforms, which means that the current implementation of AC-3 filter banks for the time/frequency transformation of an audio data block can be simplified in the encoder and the forward long ( MDCT) transform computation is required only. Expand
New Recursive Fast Radix-2 Algorithm for the Modulated Complex Lapped Transform
  • V. Britanak
  • Mathematics, Computer Science
  • IEEE Transactions on Signal Processing
  • 2012
TLDR
A new recursive fast radix-2 algorithm for an efficient computation of the modulated complex lapped transform (MCLT) is presented, supporting a wider range of transform sizes compared to existing fast MCLT algorithms. Expand

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