Suppression of Musical Noise Artifacts in Audio Noise Reduction by Adaptive 2D Filtering

ЗаголовокSuppression of Musical Noise Artifacts in Audio Noise Reduction by Adaptive 2D Filtering
Тип публикацииConference Paper
Год публикации2007
АвторыLukin A, Todd J
КонференцияAudio Engineering Society Convention
Язык публикацииEnglish
Аннотация

Spectral attenuation algorithms for audio noise reduction often generate annoying musical noise artifacts. Most existing methods for suppression of musical noise employ a combination of instantaneous and time-smoothed spectral estimates for calculation of spectral gains. In this paper a 2-D approach to the filtering of a time-frequency spectrum is proposed, based on a recently developed non-local means image denoising algorithm. The proposed algorithm demonstrates efficient reduction of musical noise without creating “noise echoes” inherent in time-smoothing methods.

Ключ цитирования266