An Approach to the Implementation of a Discrete Cosine Transform
- 1 April 1982
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Communications
- Vol. 30 (4), 635-641
- https://doi.org/10.1109/tcom.1982.1095503
Abstract
An approach to the implementation of a di$crete cosine transform (DCT) for application to coding speech is described. The approach is oriented toward single speech channel encoding. In addition, a detailed computer simulation of an adaptive transform coder is described. The purpose of the computer simulation is to determine the internal precision at various points in the implementation required to avoid subjective degradation. Specific recommtnendations are made on the required internal precision in the implementation of the discrete cosine transform. A breadboard implementation of the DCT using SSI and MSI TTL logic based on the results of the computer simulation is reported.Keywords
This publication has 10 references indexed in Scilit:
- An analysis/Synthesis framework for transform coding of speechPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- A fast cosine transform in one and two dimensionsIEEE Transactions on Acoustics, Speech, and Signal Processing, 1980
- Frequency domain coding of speechIEEE Transactions on Acoustics, Speech, and Signal Processing, 1979
- Approaches to adaptive transform speech coding at low bit ratesIEEE Transactions on Acoustics, Speech, and Signal Processing, 1979
- A Twelve-Channel Digital Echo CancelerIEEE Transactions on Communications, 1978
- Adaptive transform coding of speech signalsIEEE Transactions on Acoustics, Speech, and Signal Processing, 1977
- Discrete Cosine TransformIEEE Transactions on Computers, 1974
- A Comparison of Orthogonal Transformations for Digital Speech ProcessingIEEE Transactions on Communication Technology, 1971
- A Unified Formulation of Segment Companding Laws and Synthesis of Codecs and Digital CompandorsBell System Technical Journal, 1970
- Block Quantization of Correlated Gaussian Random VariablesIEEE Transactions on Communications, 1963