Coding overcomplete representations of audio using the MCLT
- Creators
- Yoon, Byung‐Jun
- Malvar, Henrique S.
Abstract
We propose a system for audio coding using the modulated complex lapped transform (MCLT). In general, it is difficult to encode signals using overcomplete representations without avoiding a penalty in rate-distortion performance. We show that the penalty can be significantly reduced for MCLT-based representations, without the need for iterative methods of sparsity reduction. We achieve that via a magnitude-phase polar quantization and the use of magnitude and phase prediction. Compared to systems based on quantization of orthogonal representations such as the modulated lapped transform (MLT), the new system allows for reduced warbling artifacts and more precise computation of frequency-domain auditory masking functions.
Additional Information
© 2008 IEEE.Attached Files
Published - Yoon2008p8489Dcc_2008_Data_Compression_Conference_Proceedings.pdf
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Additional details
- Eprint ID
- 19147
- Resolver ID
- CaltechAUTHORS:20100721-145403250
- Created
-
2010-07-30Created from EPrint's datestamp field
- Updated
-
2021-11-08Created from EPrint's last_modified field
- Other Numbering System Name
- INSPEC Accession Number
- Other Numbering System Identifier
- 9913155