Tuesday Morning, 14 May 2019 French, 8:00 Am to 12:00 Noon
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TUESDAY MORNING, 14 MAY 2019 FRENCH, 8:00 A.M. TO 12:00 NOON Session 2aAAa Architectural Acoustics and Noise: Libraries, Media Centers, and Similar Spaces K. Anthony Hoover, Cochair McKay Conant Hoover, 5655 Lindero Canyon Road, Suite 325, Westlake Village, CA 91362 Damian Doria, Cochair Stages Consultants LLC, 75 Feather Ln., Guildford, CT 06437-4907 Chair’s Introduction—8:00 Invited Papers 2a TUE. AM 8:05 2aAAa1. Introduction and overview—Libraries as a building type and reflections of multipurpose trends that have an acoustical impact. Dennis Paoletti (Paoletti Consulting, 708 Foothill Dr., San Mateo, CA 94402, [email protected]) Libraries have developed from vast storehouses of bookshelves and hard covered manuscripts and literary materials to vibrant com- munity centers and true multipurpose facilities, acoustically. This paper will discuss the: history of libraries, politics of libraries, archi- tectural design of libraries, acoustical design of libraries, and the future of libraries. Examples of library projects ranging from main urban public libraries and university library systems to a number of smaller, standalone local community libraries. will provide interest- ing insight into the variety of activities that go on today in libraries that challenge the best of our acoustical design sensibilities and con- trols. Libraries share the basic acoustical parameters of many other building types, e.g., open plan spaces, offices and conference rooms, cafes, and even digital/multimedia and performing arts facilities. Lessons learned from challenging consulting efforts, especially when budgets are limited, will be explored and discussed. 8:25 2aAAa2. Soundscape of the evolving library. Gary W. Siebein, Hyun Paek, Marylin Roa, Keely Siebein, Jennifer R. Miller, Gary Sie- bein, and Matthew Vetterick (Siebein Assoc., Inc., 625 NW 60th St., Ste. C, Gainesville, FL 32607, [email protected]) Historically libraries were thought of as places of quiet reading and research. There were 2 general acoustical design approaches to reading rooms in libraries. One was to use large volume spaces with sound reflective materials that amplified every sound made in the room so that people would be self-conscious of the sounds that they made. A second approach was to design rooms with sound absorbent finishes that would reduce the spread of sounds from one part of the space to another. The evolving library of the future has many more complex functions and rich programs than the traditional library. Many of these encourage discussion, recreation, public involvement, experiencing multi-sensory media in addition to traditional books and a variety of other activities such as coffee shops, community meet- ing rooms, auditoriums, recording studios, listening rooms for amplified audio, interactive computer work stations, collaborative work/ study areas where students can gather, talk, view and listen in active sessions all in close proximity to each other. Case studies of 2 libra- ries will be presented to identify links between soundscape design issues, architectural planning strategies and practical systems for designing the library of the future as it continues to rapidly evolve in concept. 8:45 2aAAa3. Recording room trends in libraries. Nicole Cuff (Acentech, 33 Moulton St., Cambridge, MA 02138, [email protected]) The use of libraries in communities and universities continue to evolve to where now there is a trend toward recording rooms in pub- lic and university libraries. One such space is a recording suite in a public library intended for the community to use, teens to seniors, with fully amplified bands next to study spaces, with control equipment available for patrons to use. Another in a private university is a podcast suite that overlooks a 4-story glass Atrium, which will be the new central meeting place on campus. The author even personally used recording studio space immediately adjacent to quiet study space at a private university library with their singing group to record an album. Some of the strategies used to make these spaces work together acoustically will be discussed. 1695 J. Acoust. Soc. Am., Vol. 145, No. 3, Pt. 2, March 2019 177th Meeting: Acoustical Society of America 1695 9:05 2aAAa4. Acoustic conditions in two libraries at the University of Nebraska. William Spallino (Durham School of Architectural Eng. and Construction, Univ. of Nebraska-Lincoln, 1110 S 67th St. #210C, Omaha, NE 68182, [email protected]) and Lily M. Wang (Durham School of Architectural Eng. and Construction, Univ. of Nebraska-Lincoln, Lincoln, NE) University libraries serve many roles for students, from group gathering places to quiet study spaces; this makes analyzing and opti- mizing their acoustics very worthwhile. This paper reviews the acoustics of both main areas and small-group study rooms at the Univer- sity of Nebraska—Omaha’s Criss Library and the University of Nebraska—Lincoln’s Love Library. Sound level meters were used to log sound levels in the two libraries over multiple days. Those data were then analyzed to understand the libraries’ soundscapes through metrics like average sound levels, statistical sound levels, and occurrence rates of specific sound levels. Impulse responses and transmis- sion loss of partitions were also measured. From those analyses, conclusions are drawn about the acoustic behavior of the libraries and its appropriateness for their purpose. 9:25 2aAAa5. West Hollywood Library—More than just another pretty space. K. Anthony Hoover (McKay Conant Hoover, 5655 Lin- dero Canyon Rd., Ste. 325, Westlake Village, CA 91362, [email protected]) The West Hollywood Library is a 35 000 sqft branch of the County of Los Angeles Library, with construction funded by the City and operated by the County. It serves as a cultural and artistic community center, and includes a children’s library, teen center, career de- velopment center, special collections, cafe, bookstore, two parking garages, community meeting room, and multipurpose public meeting room (for council and commission meetings, performances, and other uses). An ornamental wood ceiling, the wood stage in the multi- purpose meeting room, the children’s reading room, and the overall aesthetic presented interesting challenges for acoustics. Visual aes- thetic and acoustic performance aspects will be discussed, along with references to various other library projects. 9:45 2aAAa6. Acoustics and AV technology of modern collegiate learning centers. David S. Woolworth (Roland, Woolworth & Assoc., 356 CR 102, Oxford, MS 38655, [email protected]) and William Roland (Roland, Woolworth & Assoc., Meridian, MS) Many universities are creating new dedicated spaces for interactive learning that can host all subjects and a more modern and holistic approach to collegiate education. In order to achieve high performance facilities that mix classrooms, testing rooms, collaborative spaces, offices, and counseling all together, acoustical and audio visual requirements must be coordinated early in the project with the end user, with room to adjust to changing programming and technology. This paper presents 3 case studies of repurposed and new colle- giate construction and outlines the types of program requirements and the approach to acoustics and audio visual for these projects. 10:05–10:20 Break 10:20 2aAAa7. Acoustical design for libraries in schools to comply with ANSI S12.60. Bennett M. Brooks (Brooks Acoust. Corp., 30 La- fayette Square - Ste. 103, Vernon, CT 06066, [email protected]) In K-12 schools, the library functional space is now usually called the media center, as this space houses and disseminates informa- tion that is stored on both print and digital media. These spaces have fewer sound absorbent book stacks than were found in previous print-only libraries. Instead, computer workstations for student access to local and web-based material are provided. Often these facili- ties are used as group learning spaces, with several group classes occurring simultaneously. These changes to the traditional school library space present challenges to the acoustical design. Another challenge is that in a number of school districts across the US, a media center must be designed to meet the requirements of ANSI/ASA 12.60-2010/Part 1, “American National Standard Acoustical Perform- ance Criteria, Design Requirements and Guidelines for Schools, Part 1: Permanent Schools,” also known as the “Classroom acoustics standard.” This is because a media center can be defined as a core learning space that is subject to that standard, with its requirements for low noise and reverberation, and for higher sound isolation from adjacent spaces. Several case studies are presented which highlight the design challenges for modern school media centers, and the successful design solutions. 10:40 2aAAa8. Considerations for media center design in unconventional environments. Melvin Saunders (None, 1601 Elm St., Fl. 33, Dallas, TX 75201, [email protected]) The consolidation and simplification of media in production environments has rapidly changed the way that many businesses de- velop content. Rather than outsourcing media development, many clients have undertaken the task to develop content for both internal and external consumption by building in-house media centers. This paper will focus on some of the lessons learned for these types of projects from both a remediation and new construction process. Acoustical solutions for projects of varying budget and scope including room