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Drum roll

A sustained sound produced by multiple, rapid strikes between drum sticks and drum, made possible by bouncing alternating sticks off the head to produce a temporally dense sequence. Wikipedia


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Class breakdown
DatasetNumber of videosDuration hours
Overall2,9688.2
Evaluation640.2
Balanced train660.2
Unbalanced train2,8387.9
Learn more about the dataset parts.

We estimate this class has medium quality

In a random sample of videos for this class, we found 4 / 10 (40%) were accurate. Note that quality in the unbalanced training set may be significantly lower. Learn more.

Evaluation videos for Drum roll

64
videos
0.2
hours
View all 64 videos

Balanced train videos for Drum roll

66
videos
0.2
hours
View all 66 videos

Unbalanced train videos for Drum roll

2,838
videos
7.9
hours
View all 2,838 videos