InfoComm Releases Updated Standard for Audio Coverage Uniformity 

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

With advancements in technology and continual audio coverage problems, it was important to produce an updated version of the ACU standard, which was first released in 2009. Although the original ACU standard was designed for audio coverage in enclosed environments, the 2017 version expands to cover most listener areas.

The performance of a sound system can be characterized by several factors, including coverage uniformity, tonal balance and consistency, gain before feedback and maximum sound pressure level. The ACU standard focuses on the uniformity of coverage of a sound system’s 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 listener’s 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 we’ve achieved those objectives, and we’re looking forward to the industry’s response and adoption.”

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The standard will be available soon here. It’s 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.

InfoComm is an ANSI Accredited Standards Developer (ASD). More than 700 industry volunteers support InfoComm’s standards development, which has resulted in seven ANSI-certified standards, plus a joint standard with the Custom Electronic Design & Installation Association (CEDIA) and the Consumer Technology Association (CTA) governing the use of audio, video, and control architectural drawing symbols. InfoComm International maintains a Standards Steering Committee that provides oversight to the standards development task groups responsible for specific standards. The Standards Steering Committee is the consensus body that reports to the InfoComm International Board of Directors.

Here are the details.

Gary Kayye

About Gary Kayye

Gary Kayye, founder of rAVe Publications, is one of the most prominent personalities in the audiovisual industry. He has been a contributor to WIRED magazine and a technical advisor and columnist for Sound & Communications magazine as well as an opinionated columnist for rAVe [Publications] since 2003. In addition to his writing and market analysis, Gary has been a product, marketing and business operations consultant to dozens of AV companies in the U.S. and overseas. Clients have included companies such as Sony, Sharp, Epson, Lutron, InFocus, Sanyo, Mitsubishi, NEC and Philips.   Gary, who has been involved with the audiovisual market for over 20 years, was the recipient of the InfoComm 2003 Educator of the Year Award and the 2007 NSCA Instructor of the Year Award. Over the years, he has donated much of his time as an active volunteer in the AV industry’s trade association and served as chairman of InfoComm’s Professional Education & Training Committee (PETC), chairman of the ICIA Design School Committee and chairman of InfoComm’s Installation School Committee. In addition, he has served on the InfoComm board of governors. He also helped grow the InfoComm Projection Shoot-Out as the premiere AV industry trade show special event serving on the committee from 1991 through 1997, and was instrumental in launching the Shoot-Out in the European market at the Photokina Expo in 1994 and 1996 as well as the Asian market at the 1995 and 1997 INFOCOMM Asia shows.   Prior to founding his own company, Gary was vice president of sales and marketing for AMX Corporation (, a manufacturer specializing in professional AV and residential AV control systems. Prior to AMX, Gary spent nine years at Extron Electronics (, rising to the position of vice president of sales and marketing. Gary earned his bachelor’s degree in journalism in 1987 from the University of North Carolina and is currently Adjunct Faculty at UNC in the School of Journalism teaching a class on how future technologies will affect the future of advertising, PR and marketing.   He is also the founder of Swim for Smiles, a non-profit that raises money for the N.C. Children’s Hospital through swimming and other fitness-related events for kids. You can contact him at