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Daichi KITAMURA Hiroshi SARUWATARI Kosuke YAGI Kiyohiro SHIKANO Yu TAKAHASHI Kazunobu KONDO
In this letter, we address monaural source separation based on supervised nonnegative matrix factorization (SNMF) and propose a new penalized SNMF. Conventional SNMF often degrades the separation performance owing to the basis-sharing problem. Our penalized SNMF forces nontarget bases to become different from the target bases, which increases the separated sound quality.