Title:
オーディオ信号の強化のための装置と方法及び音響強化システム
Document Type and Number:
Japanese Patent JP6377249
Kind Code:
B2
Abstract:
An apparatus for enhancing an audio signal comprises a signal processor for processing the audio signal in order to reduce or eliminate transient and tonal portions of the processed signal and a decorrelator for generating a first decorrelated signal and a second decorrelated signal from the processed signal. The apparatus further comprises a combiner for weightedly combining the first and the second decorrelated signal and the audio signal or a signal derived from the audio signal by coherence enhancement using time variant weighting factors and to obtain a two-channel audio signal. The apparatus further comprises a controller for controlling the time variant weighting factors by analyzing the audio signal so that different portions of the audio signal are multiplied by different weighting factors and the two-channel audio signal has a time variant degree of decorrelation.
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Inventors:
Uhle, Christian
Gump, patrick
Helmuth, Oliver
Barga, Stefan
Charler, sebastian
Gump, patrick
Helmuth, Oliver
Barga, Stefan
Charler, sebastian
Application Number:
JP2017505094A
Publication Date:
August 22, 2018
Filing Date:
July 27, 2015
Export Citation:
Assignee:
Fraunhofer-Gesellschaft Tool Felderung del Angewanten Forsung Eingetler Genel Fehlein
International Classes:
H04S5/00
Domestic Patent References:
| JP2013539554A | ||||
| JP2013134331A | ||||
| JP2008129189A | ||||
| JP2014510474A |
Attorney, Agent or Firm:
Hidetaka Tsutsui