This web page shows some side-by-side comparisons of drum mixture decompositions using the non-negative matrix factorization algorithm.
The first image for each example shows the decomposition by the original NMFD algorithm. Notice that several templates capture multiple drum hits, which is undesired.
The second image shows the results using the adapted version from the paper, which is designed to avoid `double hits' occuring within a template. We observe that this adaptation is indeed successful.File: 071_phrase_shuffle-blues_simple_fast_sticks