Phantom Audio Sources with Vertically Seperated Speakers
Multichannel auditory displays and Immersive Audio Systems are frequently integrated with video displays. Often, in these applications, the video display placement makes it difficult to place the centre speaker in front of the listener. A solution to this problem is to create a phantom centre channel in front of the listener using speakers placed elsewhere. Phantom sources can be created by amplitude-panned techniques in the horizontal plane. However, since it is practical and aesthetic to have speakers above or below the video display, we propose a technique to create a centre phantom at 0 degrees elevation and 0 degrees azimuth to the listener using two vertically separated speakers placed above and below the horizontal plane at 0 degrees azimuth. This technique can also be extended to create phantom sources in the median plane.
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