When Does Audio Become Separable?
Short answer: not when sources are sparse. Long answer: keep reading. Why I started thinking about this In audio source separation, we often repeat a comforting story: “Sources overlap less in the right representation, so we can separate them.” It sounds reasonable. It sounds mathematical. It also sounds like something we’ve all said in talks without questioning too hard. But at some point, I found myself asking a slightly annoying question: ...
