| 摘要 |
<p>A system and a method of operating the system which has at least two groups of sound providers, where the virtual position of the second group of sound providers is moved from the position of the first group of speakers to that of the second group of speakers. Also a third group of speakers may be used, the position of which is virtually moved from that of the first group via the position of the second group to that of the third group of speakers.</p> |
