发明名称 REPRODUCTION OF LOW FREQUENCY EFFECTS IN SOUND REPRODUCTION SYSTEMS
摘要 The invention relates to a method and system for reproduction of sound signals con-tained in a low frequency effect (LFE) channel in an audio reproduction system com-prising at least one main loudspeaker-although typically either five main loudspeakers in a surround sound system or two main loudspeakers in a traditional stereophonic system-and at least one low frequency loudspeaker (subwoofer) for reproduction of the lowest portion of the audible frequency range. According to the method and system of the present invention, the frequency range or the LFE channel is subdivided into a first frequency region below a given cutoff frequency, which first frequency region is provided to the subwoofer, and a second frequency region above said cut-off frequency, which second frequency region is provided to at least one of the main loudspeakers.
申请公布号 US2009296943(A1) 申请公布日期 2009.12.03
申请号 US20050721700 申请日期 2005.12.08
申请人 BANG & OLUFSEN A/S 发明人 MARTIN GEOFFREY GLEN
分类号 H04R5/00 主分类号 H04R5/00
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