Why Those Sounds From Your Upstairs Neighbor Are So Annoying #ASA183

Laboratory experiments and online surveys seek to understand what characteristics make an impact noise irritating

Media Contact:
Ashley Piccone
AIP Media
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NASHVILLE, Tenn., Dec. 6, 2022 – Most people have suffered through a noisy neighbor. Whether it’s the constant stomping of feet or the thump from dropping something, these sounds, known as “impact sounds”, are one of the main causes for complaints in multi-unit residential buildings and can negatively impact occupants’ health and work.

The team recorded impact sounds of objects dropping and people walking. Using different playback techniques and virtual reality, they presented the recordings to study participants to see what makes a sound annoying. Credit: Markus Müller-Trapet

In his presentation, “Noise from above: A summary of studies regarding the perceived annoyance due to impact sounds,” Markus Mueller-Trapet, of the National Research Council of Canada, will describe a series of experiments designed to simulate and measure the perceived annoyance experienced from a noisy neighbor. The presentation will take place on Dec. 6 at 11:05 a.m. Eastern U.S. in the Summit A room, as part of the 183rd Meeting of the Acoustical Society of America running from Dec. 5-9 at the Grand Hyatt Nashville Hotel.

According to Mueller-Trapet, long-term exposure to such unwanted sounds may potentially lead to cardiovascular problems and sleep disturbance. With the increased population density of urban areas over the last decades and the rise of working from home in early 2020, he believes the topic has become even more relevant.

Mueller-Trapet and an international team of researchers wanted to find the connection between standardized laboratory measurements and the perceived annoyance of a sound from impact sources.

They provided a living room-like situation and recorded impact sounds of objects dropping and people walking. Using different playback techniques and virtual reality, they presented the recordings to study participants. In addition to laboratory experiments, the group created an online survey to expand their sample. The survey will run from November 21, 2022 until March 31, 2023.

Impact sounds are impulsive, meaning that they consist of one or more almost distinct sounds of short duration. This likely makes impact sounds more annoying in general than continuous sounds, such as music or speech. Results suggest that the thudding sounds created by people walking barefoot are not captured by the current standardized performance metrics that are used in building codes. The challenge facing the research team is to integrate this new information with the existing metrics.

By continuing this work, the international research team hopes to provide guidance to architects and building code developers and make progress toward a more livable built environment.

———————– MORE MEETING INFORMATION ———————–
Main meeting website: https://acousticalsociety.org/asa-meetings/
Technical program: https://eppro02.ativ.me/web/planner.php?id=ASAFALL22&proof=true

ASA PRESS ROOM
In the coming weeks, ASA’s Press Room will be updated with newsworthy stories and the press conference schedule at https://acoustics.org/asa-press-room/.

LAY LANGUAGE PAPERS
ASA will also share dozens of lay language papers about topics covered at the conference. Lay language papers are 300 to 500 word summaries of presentations written by scientists for a general audience. They will be accompanied by photos, audio, and video. Learn more at https://acoustics.org/lay-language-papers/.

PRESS REGISTRATION
ASA will grant free registration to credentialed and professional freelance journalists. If you are a reporter and would like to attend the meeting or virtual press conferences, contact AIP Media Services at media@aip.org.  For urgent requests, AIP staff can also help with setting up interviews and obtaining images, sound clips, or background information.

ABOUT THE ACOUSTICAL SOCIETY OF AMERICA
The Acoustical Society of America (ASA) is the premier international scientific society in acoustics devoted to the science and technology of sound. Its 7,000 members worldwide represent a broad spectrum of the study of acoustics. ASA publications include The Journal of the Acoustical Society of America (the world’s leading journal on acoustics), JASA Express Letters, Proceedings of Meetings on Acoustics, Acoustics Today magazine, books, and standards on acoustics. The society also holds two major scientific meetings each year. See https://acousticalsociety.org/.

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