Teleconferencing

 
 

Noise Reduction in Teleconferencing Rooms

Office Noise Reduction

Sound Masking for Offices

Meeting Rooms Sound Control Solutions

Acoustical Design for Office Spaces

Have you ever spoken on the telephone to someone who is using a speakerphone? Chances are that the quality of the signal was not good. It may have sounded as though they were speaking through a pipe or in a cave – that “tin can” effect.

Usually it’s not the phone, it’s the room.

The microphones in speakerphones are very sensitive; more sensitive than our ears. They pick up not only the first incidence of sound, but also the many successive reflections of that sound as it bounces from the hard surfaces within the room. You may not hear it, but the microphones pick it up. The result is distortion.

This is a smaller scale version of the effect of announcements we frequently hear in a large space such as an arena, railroad station or airline terminal. You can hear, but it’s very difficult to understand. As one word is spoken (usually amplified and delivered through a loud speaker system) it reflects from the various surfaces in the space and we hear it again and again. Although at diminishing volume, it overlaps and interferes with the next word or syllable. Under extreme conditions, you hear much and understand little.

In a smaller venue, the distortion is hardly perceivable to the people within the room if at all. Their ears are not that sensitive. The microphones, however, do pick up those reflections and record and/or transmit them. That’s why the audio quality on your home video tape may not be what you heard when you recorded it. Again, it is not the equipment, but the room.

In a video/conference room this distortion is most always annoying to the listeners at the remote receiving location and may interfere with understanding. A reverberation time of less than 0.5 seconds is desirable, whereas times in excess of one second are typical of untreated rooms.

To correct this, acoustical (sound absorbing) treatments are added to those surfaces. The walls are the most important surfaces to be treated as they permit multiple (more than one bounce) reflections. The application of acoustical panels above chair-rail height usually corrects the problem. For rooms with hard ceiling surfaces flush mounted panels are usually required. The quantity of those panels, their performance (NRC) and their placement is an important design consideration.

Contact A Representative
First & Last Name (required)



captcha

Terms of Service | Sound Management Group. All information is protected under the privacy policy of Sound Management Group. We will not share your information with any third party. Agreement to the Terms of Services gives Sound Management Group permission to keep you up-to-date via an official monthly email newsletter and add you to our mailing list.


MidAtlantic
Virginia, Delaware, Maryland, DC, Pennsylvania, New Jersey. Including Quebec and Montreal
Contact Paul Barkman:
T: + 1 (908) 285-3419
E: paulb@soundmanagementgroup.com


New England & New York City
Maine, New Hampshire, Vermont, Connecticut, Massachusetts, New York State, New York City & Long Island.
Contact Mark Williams:
T: +1 (908) 300-9696
E: markw@soundmanagementgroup.com



Southeast Region
Mississippi, Alabama, Georgia, Missouri, Tennessee, Arkansas, Kentucky, North & South Carolina
Contact Eric Walton:
T: +1 (512) 689-4113
E: ericw@soundmanagementgroup.com

Florida, The Caribbean & Puerto Rico.
Contact Art Barkman:
T: + 1 (908) 313-4052
E: artb@soundmanagementgroup.com



South and Mountain Region
Texas, Louisiana, Colorado, Oklahoma, New Mexico, Kansas, Nebraska, Arkansas, Missouri. International
Contact Mike Barkman:
T: +1 (908) 285-3418
E: mikeb@soundmanagementgroup.com



Midwest Region
Illinois, Minnesota, Wisconsin, Iowa, Indiana, Ohio, Michigan. Toronto.
Contact Mike Barkman:
T: +1 (908) 285-3418
E: mikeb@soundmanagementgroup.com



West & Northwest Region
California, Oregon, Washington, Utah, Arizona, & Hawaii, British Columbia
Contact Keith Barkman:
T: +1 (908) 295-9027
E: keithb@soundmanagementgroup.com



West Region
Northern California, Nevada, Idaho, Wyoming, North and South Dakota
Contact Keith Barkman:
T: +1 (908) 295-9027
E: keithb@soundmanagementgroup.com