In This Section
Audibility of a CD-Standard A/DA/A Loop Inserted into High-Resolution Audio Playback - September 2007
Sound Board: Food for Thought, Aesthetics in Orchestra Recording - April 2015
Reflecting on Reflections - June 2014
AES Conference Papers Forum
Signal Models and Upmixing Techniques for Generating Multichannel Audio
Most systems for upmixing stereo content have traditionally used sums and differences of source signals, an arrangement referred to as matrixing. Matrix-based upmixers have evolved from passive operation to sophisticated active matrix designs, and have achieved widespread commercial use. This paper introduces a new algorithm for upmixing from two to five channels using a hybrid of both scale factor and variable matrix techniques. The algorithm applies equally well to both Lt/Rt-encoded and conventional stereo programs. It improves on traditional methods, providing better reproduction of the front sound stage, while anchoring center images for off center listeners and creating more compelling ambience and envelopment. Data from subjective listening tests are provided to support these conclusions.
No AES members have commented on this paper yet.
Subscribe to this discussion
Start a discussion!
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.