Research Article
Environmental Sound Recognition Using Time-Frequency Intersection Patterns
Table 1
The RWCP environmental sound database.
| | Sound type | Kind of materials | Instances |
| | Impact sound | Wood plates | 12 | | Metal cans, boxes, and so forth | 10 | | Plastic cases | 3 | | Glass cups, bottles, and so forth | 8 | | Bundle of paper | 1 | | Handclap/handclaps | 4 |
| | Falling pieces | Grains | 2 | | Coin/coins | 7 | | Dice | 3 |
| | Air jet | Small air pump | 1 | | Spray | 1 | | Firecracker | 1 | | Air bubbles | 1 | | Dryer | 1 |
| | Friction sound | File | 1 | | Sand paper | 2 | | Saw | 2 |
| | Musical instruments | Castanets | 1 | | Cymbals | 1 | | Drum | 1 | | Horn | 1 | | Kara | 1 | | Maracas | 1 | | Ring | 1 | | String | 1 | | Whistle | 3 | | Tambourine | 1 |
| | Phone, buzzer | Buzzer | 1 | | Clock alarm | 2 | | Phone | 4 | | Toys | 3 |
| | Open | Cap | 2 |
| | Broken | Chopsticks | 1 | | Tearing paper | 1 | | Crumpling paper | 1 |
| | Release | Clip | 2 |
| | Shaking | Metal bell/bells | 7 |
| | Rotation | Coffee mill | 1 |
| | Others | Doorlock | 1 | | Leaf through a book | 2 | | Mech bell | 1 | | Padlock | 1 | | Punch | 1 | | Shaver | 1 | | Stapler | 1 |
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