Research Article
Adaptive Variable Degree- Zero-Trees for Re-Encoding of Perceptually Quantized Wavelet Packet Transformed Audio and High-Quality Speech
Table 5
Comparison of the re-encoder computation times.
| | Test signal | Coding computation time (sec) | Decoding computation time (sec) | | Modified EZW | Modified SPIHT | Proposed AVDZ | Modified EZW | Modified SPIHT | Proposed AVDZ |
| | Male 1 | 25.35 | 18.25 | 11.41 | 21.34 | 17.67 | 11.85 | | Female 1 | 25.58 | 18.62 | 10.80 | 22.71 | 17.49 | 12.17 | | Male 2 | 26.38 | 18.81 | 11.13 | 21.74 | 17.08 | 12.50 | | Female 2 | 26.34 | 17.32 | 11.14 | 21.13 | 17.46 | 12.56 | | Male 3 | 25.91 | 17.29 | 10.97 | 19.29 | 16.51 | 12.41 | | Female 3 | 23.26 | 17.48 | 11.14 | 21.33 | 16.30 | 11.62 | | Music 1 | 30.81 | 22.62 | 11.79 | 24.49 | 20.16 | 13.07 | | Music 2 | 33.44 | 22.13 | 11.74 | 25.80 | 19.54 | 13.36 |
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