Determined blind source separation (BSS) extracts the source signals by linear multichannel filtering. Its performance depends on the accuracy of source modeling, and hence existing BSS methods have proposed several source models. Recently, a new determined BSS algorithm that incorporates a time-frequency mask has been proposed. It enables very flexible source modeling because the model is implicitly defined by a mask-generating function. Building up on this framework, in this paper, we propose a unification of determined BSS and harmonic/percussive sound separation (HPSS). HPSS is an important preprocessing for musical applications. By incorporating HPSS, both harmonic and percussive instruments can be accurately modeled for determined BSS. The resultant algorithm estimates the demixing filter using the information obtained by an HPSS method. We also propose a stabilization method that is essential for the proposed algorithm. Our experiments showed that the proposed method outperformed both HPSS and determined BSS methods including independent low-rank matrix analysis.
|ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
|Published - 2021
|2021 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2021 - Virtual, Toronto, Canada
継続期間: 2021 6月 6 → 2021 6月 11
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