Systems and methods are provided herein relating to audio matching. Descriptors can be generated for a received audio signal and matched with reference descriptors. Potential matching reference samples can then be filtered based on, at least in part, a number of hits, a match threshold, and a window size. As more hits are accumulated for a reference sample, the more likely the reference sample is to pass through the filter. Eliminating potential false positive matches before performing more computational demanding matching algorithms can increase efficiency within an audio matching system.