Evaluation segments for 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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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.
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Evaluation videos for Drum roll (64)