159th meeting of the Acoustical Society of America (April 19-23,2010)

Acoustical Society of America held 159th meeting on on noise and noise control at Baltimore Marriott Waterfront Hotel in Baltimore, MD on April 19-23, 2010. Lister below are just a few of the meeting’s many interesting noise-related talks. 1) Aviation Engineering: STIFLING THE SONIC BOOM 2) City Noise: IDENTIFYING THE SOUNDS OF CRISIS 3) Human […]
Acoustical Society of America held 159th meeting on on noise and noise control at Baltimore Marriott Waterfront Hotel in Baltimore, MD on April 19-23, 2010. Lister below are just a few of the meeting’s many interesting noise-related talks. 1) Aviation Engineering: STIFLING THE SONIC BOOM 2) City Noise: IDENTIFYING THE SOUNDS OF CRISIS 3) Human Noises: SOUND LEVELS IN THE ARCTIC OCEAN 4) Community Noise Mitigation: PUBLIC OUTREACH WORKSHOP 5) Noise Inside a Car: QUIET CONCRETE ROADS 6) Construction Noise: “NO RACKET” JACKET FOR JACK HAMMER 7) Signal Processing: NOISE FILTERING FOR THE HEARING IMPAIRED 8) Noise in Healthcare Settings: NEW LEGAL STANDARDS 9) More Highlights — OTHER INTERESTING SESSIONS 10) More Information for Journalists ———————————————————- 1) Aviation Engineering: Stifling the Sonic Boom SONIC “PUFF” TECHNOLOGY MAY SPEED SUPERSONIC FLIGHT OVER LAND For the last 40 years, commercial aviation has hit a speed barrier in regulations prohibiting supersonic flight over land. These aim to limit the negative impact of loud sonic booms on populated areas, and current regulations permit commercial supersonic flight only over oceans, significantly limiting the speed benefit from supersonic flight. New aircraft configurations are emerging that are shaped to minimize the shock waves associated with sonic booms and may allow supersonic speed over land. Talk #1aNCa1, “Sonic boom: From bang to puff” is at 8:05 a.m. on Monday, April 19. Abstract: http://asa.aip.org/web2/asa/abstracts/search.may10/asa53.html ———————————————————- 2) City Noise: Identifying the Sounds of Crisis ACOUSTIC AND SEISMIC SENSORS IN BALTIMORE HELP SORT COMPLEX CITY SOUNDS Beeping, shouting, construction, the sounds of tires on roads, and other loud noises — all partly masked by mazes of tall buildings — make up the fabric of the modern urban soundscape. To urban sound sleuths such as Donald G. Albert, a scientist with the Engineer Research and Development Center (ERDC) Cold Regions Research and Engineering Laboratory, in Hanover, NH, this complex soundscape is a challenge. He is tasked with developing a way to use sensors to sort out the complex bounce of signals, noise, scattered sounds, echoes, and vibrations in urban environments. Talk #1pNSc1, “Urban acoustic and seismic noise measurements in Baltimore” is at 1:30 p.m. on Monday, April 19. Abstract: http://asa.aip.org/web2/asa/abstracts/search.may10/asa238.html ———————————————————- 3) Human Noises in the Arctic LOSS OF POLAR ICE INCREASES BOAT TRAFFIC AND SOUND LEVELS IN ARCTIC OCEAN With the melting of polar ice, never before in modern life has so much open ocean water been accessible in the Arctic. And where there’s water, there is opportunity for commercial shipping, and where shipping lanes emerge, big boats — and big noise — may follow. Talk #1aAO1, “The accessible Arctic Ocean” is at 9:05 a.m. on Monday, April 19. Abstract: http://asa.aip.org/web2/asa/abstracts/search.may10/asa26.html ———————————————————- 4) Community Noise Mitigation: Public Outreach Workshop NOISE HAS A PROFOUND LOCAL IMPACT — EVEN IF FEDERAL POLICY DOES NOT Community noise is a major social problem that generally decreases the quality of life for many people in the United States, and it is continuing to grow — especially in major urban areas. In cities like Baltimore, community noise causes a variety of problems for local residents — from simple annoyances to profound negative impacts on human health. The workshop will include a panel of prominent national speakers on community noise control who will make presentations on a variety of topics faced by residents of Baltimore, including the noise situation in Baltimore, desired local government responses, the Baltimore noise ordinance, the Maryland noise control regulation, and the role of federal, state and local governments in addressing community noise issues. The Workshop will also give the first brief overview of a forthcoming National Academy of Engineering study titled “Technology for a Quieter America,” which will be published later this year. ———————————————————- 5) Noise Inside a Car QUIET CONCRETE PAVEMENT IS KEY TO MORE QUIET RIDE The stereo test tells all: You’re in the driver’s seat, buckled in, mirrors adjusted, traffic checked, in gear. Rolling. Cue the sound system, crank the volume, and crank it again. And then crank it again. This simple diagnostic is revealing: If you have to keep turning your stereo up as you drive to hear the music, you likely have “noisy pavement” under your tires. April 19. Abstract: http://asa.aip.org/web2/asa/abstracts/search.may10/asa210.html ———————————————————- 6) Construction Noise QUIETING THE SOUNDS OF PROGRESS — THE “NO-RACKET JACKET” New York City is constantly maintaining, repairing, and reinventing itself, ongoing work that creates a lot of construction noise. However, a collaborative team including the New York City Department of Environmental Protection (DEP), consultants, utilities and an equipment vendor are working together to quiet the sounds of progress and improve the quality of life for those who live and work in the city. In furthering the city’s commitment to reducing noise is embodied in a new noise code and new construction rules, the DEP team wanted to look at ways to eliminate jackhammer noise — an annoyance for residents and businesses and an important occupational hazard for construction workers. Talk #2pNCa9, “Proactive regulation engenders creative innovation: Quieting the jack hammer” is at 3:00 p.m. on Tuesday, April 20. Abstract: http://asa.aip.org/web2/asa/abstracts/search.may10/asa478.html ———————————————————- 7) Signal Processing: Noise Filtering for the Hearing Impaired A SOLUTION FOR IMPROVING SPEECH INTELLIGIBILITY FOR THE HEARING IMPAIRED Recall what it is like trying to focus on a conversation in a crowded and noisy bar — and then imagine having to do this even in a relatively quiet room. This is exactly the challenge that faces many people who rely on hearing aids or have cochlear implants. While these technological advances make it possible for many to hear who would not otherwise, they do not allow the individual to filter out background noise. Talk #2aSC1, “Noise-suppression algorithms for improved speech intelligibility by normal-hearing and cochlear implant listeners” is at 8:05 a.m. on Tuesday, April 20. Abstract: http://asa.aip.org/web2/asa/abstracts/search.may10/asa410.html ———————————————————- 8) Noise in Healthcare Settings NEW ACOUSTICAL STANDARDS PRESENT BOTH CHALLENGES AND OPPORTUNITIES A pair of new documents on healthcare acoustics, which have just been released after five years of peer review and public comment, are described by one of their authors as both a carrot and a stick. They set measurable minimum acoustical standards for the health care industry, and because these new standards have already been adopted by the Leadership in Energy and Environmental Design (LEED) Green Building Rating system, they are the basis for two new Environmental Quality credits. Because of Health Insurance and Portability Act (HIPAA) rules and new conditions imposed last November by Obama’s ARRA HITECH Act, there are serious fines (up to $1.5 million) for non-compliance. Talk #2aNSc11, “Strengthening the healthcare guidelines: About the new online research community” is at 11:40 a.m. on Tuesday, April 20. Abstract: http://asa.aip.org/web2/asa/abstracts/search.may10/asa369.html Talk #2pAAa1, “Speech privacy: The new 2010 architectural guidelines” is at 1:00 p.m. on Tuesday, April 20. Abstract: http://asa.aip.org/web2/asa/abstracts/search.may10/asa438.html ———————————————————- 9) MORE HIGHLIGHTS — OTHER INTERESTING SESSIONS ON NOISE In addition to the highlighted talks above, there are many other interesting noise-related talks and sessions at the meeting — some of which are listed below. For a complete list of abstracts for any of these sessions, go to the searchable index for the 159th Meeting (http://asa.aip.org/asasearch.html) and enter the session number with asterisk (e.g., 1aNSa*).