Research Article
Discrete and Dual Tree Wavelet Features for Real-Time Speech/Music Discrimination
Table 2
Lengths of the feature vectors before and after PCA.
| | | Original length | After PCA |
| | Conventional | Common features | 21 | 20 |
| DWT based
Energy | DWT Energy (db8) | 10 | 5 | | DWT Energy (coif1) | 10 | 3 |
| | DWT based | Haar | 38 | 19 | | db2 | 38 | 19 | | db8 | 38 | 22 | | db15 | 38 | 21 | | db20 | 38 | 21 |
| | CWT based | CFS (5 Levels ) | 25 | 11 | | _Shift (5 Levels ) | 25 | 11 | | CFS (7 Levels ) | 35 | 15 | | _Shift (7 Levels ) | 35 | 14 |
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