Table 1 Acoustic features representing musical mood.
| Acoustic intensity features | ||
|---|---|---|
| Dim. | Symbol | Description |
| 1 |
| Overall intensity |
| 2–8 |
| Intensity of each subband* |
| Acoustic timbre features | ||
| Dim. | Symbol | Description |
| 9 |
| Spectral centroid |
| 10 |
| Spectral width |
| 11 |
| Spectral rolloff |
| 12 |
| Spectral flux |
| 13–19 |
| Spectral peak of each subband* |
| 20–26 |
| Spectral valley of each subband* |
| 27–33 |
| Spectral contrast of each subband* |