This paper focuses on the energy compaction properties of five different transforms: DFT; DCT; SDFT ( (N+1)/2, 1/2); MDCT; and DST. Energy compaction properties of these transforms are compared experimentally. In addition to sinusoidal signals, 16 classical and pop music pieces were used for the experiments. The influence of different window sizes (256, 512, and 1024 samples) and different window shapes (rectangular and sine) was investigated. The results of the experiments are presented and analyzed.:
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