| 摘要 |
This invention relates to the field of multichannel audio. More particularly, the invention relates to methods and apparatus for enhancing the reproduction of multiple audio channels. The channels include channels intended for playback to the front of a listening area and channels intended for playback to the sides and/or rear of the listening area. The methods comprise extracting out-of-phase sound information from a pair of the channels intended for playback to the sides or rear sides of the listening area, and applying the out-of-phase sound information to one or more loudspeakers located above loudspeakers playing back channels intended for playback to the front of the listening area. |
