InfoComm releases updated...

InfoComm has announced the release of the updated standard Audio Coverage Uniformity (ACU) in Listener Areas (ANSI/INFOCOMM A102.01:2017).

The ACU standard was updated because of advancements in technology and continual audio coverage problems. Although the original ACU standard (created in 2009) was designed for audio coverage in enclosed environments, the 2017 version expands to cover most listener areas.

The ACU standard focuses on the uniformity of coverage of a sound systems early-arriving energy to a listener area. An ideal sound system design allows all listeners to hear reproduced content at approximately the same sound pressure level independent of the listeners position in a designated area. This performance standard provides a procedure to measure and a means to classify the uniformity of coverage.

The updated standard takes advantage of improved measurement platforms, which will allow the user to gain a much better understanding of exactly how a system is performing, opening the door to providing enhanced user experiences, said Ann Brigida, CTS, CStd, Director of Standards, InfoComm International. There will be greater consistency in results and reporting, and reduced time in the field taking measurements.

This is the first rewrite of a standard and we learned a great deal in the process, said Thom Mullins, CTS, moderator for the standard task group and Senior Consultant for Affiliated Engineers Inc. Our goals were to make the standard easier to implement, to bring the standard up to date with current measurement techniques and systems, to provide a means of quantifying the performance of a room or system that is easy to understand, and to base the standard on solid evidence and understanding of human perception. I believe weve achieved those objectives, and were looking forward to the industrys response and adoption.

The standard will be available soon at infocomm.org/standards. Its free for members and available for purchase by non-members. In addition, InfoComm will publish a design guide and field guide to help professionals implement the standard.

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