Conversion of Two-Channel Stereo for Presentation by Three Frontal Loudspeakers
A compatibility problem exists when two-channel program material is played over loudspeaker layouts with more than two front loudspeakers. Two-channel music recordings, when used either as cinema sound tracks or played on a typical home theater setup, are examples, as are older quadraphonic and related recordings played over a 5.1 layout. The theory of generalized head-related stereophony of Cooper and Bauck applies to this problem, indicating an infinite number of solutions. A few solutions are examined in detail, resulting in several remedial network specifications. These solutions are incorporated into a simulation and a signal-based error function, essentially a plot of the sweet spot is plotted for each and compared to errors which arise from conventional methods. Under several types of input signals, the new processor exhibits substantially better performance than conventional methods, yet it is simple and economical to implement.:
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members and is temporarily free for AES members.