Optimizing wide-area sound reproduction using a single subwoofer with dynamic signal decorrelation
|Authors||Hill, Adam J. and Moore, J.B.|
A central goal in small room sound reproduction is achieving consistent sound energy distribution across a wide listening area. This is especially difficult at low-frequencies where room-modes result in highly position-dependent listening experiences. While numerous techniques for multiple-degree-of-freedom systems exist and have proven to be highly effective, this work focuses on achieving position-independent low-frequency listening experiences with a single subwoofer. The negative effects due to room-modes and comb-filtering are mitigated by applying a time-varying decorrelation method known as dynamic diffuse signal processing. Results indicate that spatial variance in magnitude response can be significantly reduced, although there is a sharp trade-off between the algorithm’s effectiveness and the resulting perceptual coloration of the audio signal.
|Keywords||audio engineering; Acoustics; signal processing; DSP; Psychoacoustics; sound reproduction|
|Publisher||Audio Engineering Society|
|Web address (URL)||http://hdl.handle.net/10545/623613|
File Access Level
|Publication dates||10 Mar 2019|
|Publication process dates|
|Deposited||18 Mar 2019, 13:51|
This paper was presented at the 146th Convention of the Audio Engineering Society, as paper number 10181. The full published version can be found at http://www.aes.org/e-lib/browse.cfm?elib=20314.
|Contributors||University of Derby|
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