Signal decorrelation for sound reinforcement system crossovers

Conference paper


Hill, A. 2024. Signal decorrelation for sound reinforcement system crossovers. AES International Acoustics & Sound Reinforcement Conference. Audio Engineering Society.
AuthorsHill, A.
TypeConference paper
Abstract

While sound reinforcement technology has progressed significantly in recent decades, aspects of system deployment remain largely unchanged, principally the use of stereo (or multiple mono) left/right configurations and crossover networks. As such, the issue of coherent interference between overlapping spatial and spectral coverage remains a challenge to system engineers. This paper focuses on the application of a perceptually transparent method of decorrelation, known as diffuse signal processing (DiSP), to minimize coherent interference within key elements of sound systems. Experiments were conducted with scale model loudspeakers in a hemi-anechoic chamber, mounting the systems onto an automated turntable to inspect the effectiveness of decorrelation over a wide polar range. Results indicate that the application of decorrelation has the potential to significantly reduce spatial variance across an audience area, although further work is necessary to optimize the decorrelation filters to improve performance consistency.

Keywordssignal processing; audio engineering; sound reinforcement; acoustics; live sound
Year2024
ConferenceAES International Acoustics & Sound Reinforcement Conference
PublisherAudio Engineering Society
Web address (URL)https://www.aes.org/e-lib/browse.cfm?elib=22362
Accepted author manuscript
File Access Level
Open
Publisher's version
File Access Level
Controlled
Web address (URL) of conference proceedingshttps://aes2.org/events-calendar/2024-sound-reinforcement-conference/
Output statusPublished
Publication dates
Online23 Jan 2024
Publication process dates
Deposited12 Feb 2024
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https://repository.derby.ac.uk/item/q48q9/signal-decorrelation-for-sound-reinforcement-system-crossovers

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Accepted author manuscript
Hill - AES ASR 2024.pdf
File access level: Open

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