Investigation of Listener Envelopment in Multichannel Surround Systems
It is now well understood that listener envelopment (LEV) is an essential component of good concert hall acoustics. An objective measure based on the late-lateral energy has been shown to perform well at predicting LEV. One goal of multichannel surround systems is to improve the re-creation of the concert hall experience in a home listening environment. By varying the amount of late-lateral energy, such systems should allow the perception of LEV to be enhanced and controlled. In this paper the loudspeaker/listening room interactions are shown to limit the range of acoustical conditions that can be re-created. A series of formal subjective tests were conducted to determine if objective measures of late-lateral energy are suitable for predicting LEV in multichannel surround systems.
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