Conference Room Acoustics

Office conference rooms are valuable communication forums in which confidentiality and sufficient audibility are of prime importance. The nature of a conference room, being a single enclosed room where multiple parties gather to discuss business matters, can bring about a number of sound reduction and acoustical challenges in an office environment. Conference room soundproofing solutions typically entail first reducing the transmission of noise into and out of the room, followed by implementing treatments to improve the quality of acoustics within the room for understandable dialogue, speeches and presentations. In some cases, conference room noise bleed is not an issue, and the project can focus solely on eliminating excess noise reverberations within the room to improve acoustical quality overall.

Sound bleed into and out of a conference room is the primary concern that must be addressed in a conference room sound improvement project. Outside noise entering a conference room during a meeting is a nuisance and a distraction to the attendees of the assembly, while noise transmitted out of the room and into the general office environment is a distraction to other employees whose ability to concentrate can be affected. Additionally, the security of confidential company information can be compromised when details discussed in a meeting are easily audible throughout the office.

Controlling noise bleed into and out of a conference room involves isolating the room such that noise cannot easily travel through common surfaces such as walls and ceilings. Isolating the room can be accomplished in several ways, depending upon the individual room characteristics, extent of modification desired as well as the project budget. Adding a layer of mass loaded sound barrier vinyl such as dB-Bloc to each wall and constructing a secondary drywall layer is one effective method of reducing sound transmission between rooms. Such modifications add the important soundproofing elements of density and disconnection to the room, with the added density controlling the wall’s ability to vibrate and the disconnected surface causing sound waves to collapse within the structure. Additionally, several types of weighted ceiling tiles are available to supplement or replace the existing tiles in a typical grid ceiling. For larger rooms, collapsible sound control curtains used in combination with the techniques above can establish a smaller meeting area and aid in the reduction of noise transmission beyond the intended area.

The second phase in improving conference room acoustics is implementing absorption treatments to control background noise reflections within the room in order to enhance the acoustical quality within. The ability of each attendee to clearly comprehend important information delivered in speeches, videos and other presentations is crucial to a productive and worthwhile meeting or conference. Untreated wall surfaces reflect sound waves back into a room, producing excess background noise and thus unpleasant acoustical quality. The simple installation of sound absorptive panels throughout a conference room will reduce excess reverberations and help deliver clearly audible sound to attendees. Several types of sound panels are available for this purpose, some of which are available in a range of colors to coordinate with existing office décor. The presence of windows in a conference room can pose a challenge, as windows are hard, reflective surfaces on which sound panels cannot be mounted. For conference rooms with windows, sound absorptive window blinds can be installed to further absorb unwanted sound reverberations within the room.

Though effective sound reduction and acoustical improvement solutions can be easily self-installed, it is important to consult a soundproofing professional at the inception of any such project to ensure that all variables are considered and that an effective solution is reached.