I have training data which includes examples with missing fundamentals (synthetically removed), and the network does learn to recognize this. (The heavy regular

I have training data which includes examples with missing fundamentals (synthetically removed), and the network does learn to recognize this. (The heavy regularization also helped a lot.) Although I was able to test with real instruments (and my grotesque voice), I didn't find any good live examples of audio with missing fundamentals to test with. It did recognize held-out synthesized data correctly though.