by ABD Engineering and Design | Noise and Vibration
Fundamentally, sound is "that which we hear". What we hear at any given time can greatly influence us. We use sound to communicate, to express warning, fear, pleasure and excitement. Some sounds can relax us and help us fall asleep, while other sounds can distract us...
by ABD Engineering and Design | Noise and Vibration
On a recent trip to India, I discovered a cute clothing sizing term called "free size" which is equivalent to "one size fits all". Free size clothing must be a manufacturer's delight since production and distribution are greatly simplified. Adjustments to the size of...
by ABD Engineering and Design | Acoustics
Some acoustical environments are straightforward in purpose. A movie theatre, for example, needs to project the sound of the movie with precision and clarity to all seats in the house. Most acoustical environments, however, have varying needs which are dependent on...
by ABD Engineering and Design | Audiovisual
Several months ago (10-13-08) I wrote about the current state of the wireless microphone frequency spectrum and how the actions of congress and the FCC are shaping the future of wireless technology. Well, several notable updates and changes have been made since that...
by ABD Engineering and Design | Acoustics
Blocking sound is often analogized to plugging the holes in a leaky bucket. If you plug up all the bucket holes except one, the bucket is still going to drain. In acoustics, an outstanding partition design will not adequately block sound if holes and weak spots exist...
