非負矩陣分解法於語音調變頻譜強化之研究(A study of enhancing the modulation spectrum of speech signals via nonnegative matrix factorization)[In Chinese]

In this paper, we propose to enhance the modulation spectrum of the spectrograms for speech signals via the technique of non-negative matrix factorization (NMF). In the training phase, the clean speech and noise in the training set are separately transformed to spectrograms and modulation spectra in turn, and then the magnitude modulation spectra are used… (More)