A brief survey of a DCT-Based Speech Enhancement System


Discrete Cosine Transform (DCT) has similar performance to the Karhunen-Loeve Transform (KLT) & same properties to the Discrete Fourier Transform (DFT). It is advantageous for speech enhancement as it provides better energy compaction capability. Though there is a perfectly stationary signal, frame to frame variations of DCT coefficients are observed. In… (More)


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