کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
408919 679047 2008 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A dynamic algorithm for blind separation of convolutive sound mixtures
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر هوش مصنوعی
پیش نمایش صفحه اول مقاله
A dynamic algorithm for blind separation of convolutive sound mixtures
چکیده انگلیسی

We study an efficient dynamic blind source separation algorithm of convolutive sound mixtures based on updating statistical information in the frequency domain, and minimizing the support of time domain demixing filters by a weighted least square method. The permutation and scaling indeterminacies of separation, and concatenations of signals in adjacent time frames are resolved with optimization of l1×l∞l1×l∞ norm on cross-correlation coefficients at multiple time lags. The algorithm is a direct method without iterations, and is adaptive to the environment. Computations on recorded benchmark mixtures of speech and music signals show excellent performance. The method in general separates a foreground source from a background of sounds as often encountered in realistic situations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neurocomputing - Volume 72, Issues 1–3, December 2008, Pages 521–532
نویسندگان
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