Classroom Acoustics

More than three-quarters of the teachers in a recent poll gave the acoustics in their classrooms a failing grade. The problem is most commonly a “signal to noise” ratio issue, which results in poor speech intelligibility. In general terms – the room is too noisy and it takes a long time for sound to decay… Read more »

New Advances in Video Conferencing Technology H.264

A new video conferencing standard, H.264, delivers twice the video quality currently experienced in video conferencing meetings. H.264 provides a far more efficient mechanism for compressing and decompressing motion video. This mechanism or algorithm requires significantly less bandwidth to transmit a motion image than has previously been possible. For videoconferencing, H.264 requires only 50% of… Read more »

Retail Design

Themed Retail is a balance between saturation of exposure to audio and video stimuli in “teen” departments versus the peace and serenity of high-end jewelry/perfume departments. Far too often, the energetic, loud, vibrant, environment in a young teenager/juniors environment is immediately adjacent to the sensual atmosphere found in the perfume/jewelry zones of a store. The… Read more »

Acoustics for Live Theatre

The lights begin to dim, the audience takes their seats, voices lower, and all you can hear is the quiet rustle of theatre programs and an occasional cough as the audience waits in anticipation for the curtain to rise on the latest, long-awaited Broadway play. The excitement builds as the curtain slowly parts, revealing an… Read more »

Video Conference Technology

One of our clients once stated: “A person needs to be at a location to facilitate the work process, not attend a meeting.” We have all heard about a business executive who took a three-day trip overseas to attend a one-hour briefing. Video Conferencing might have been a solution for these issues. Video Conferences cannot… Read more »

Digital Preservation

You know those dusty boxes of photographs you’ve been meaning to put into an album? Or the shelf full of videotapes of the kids growing up? The glass-plate slides your dad took on vacation? Or even the 8mm film reels of you taking your first steps? Well, they’re not going to be around forever! Those… Read more »

The Code of Silence

Maxwell Smart’s Cone of Silence was a nice idea. Wouldn’t it be great to be able to use such a device in today’s busy and energetic society? Well, for some types of noise it has been possible for a person to have their own personal Cone of Silence. Active noise control is the solution. This… Read more »

High Definition Television Is Here! (Sort of…)

High Definition Television (HDTV) promises bigger and better images and great audio. But what exactly is HDTV and how will it affect our television viewing? Consumers are experiencing a confusing mess of conflicting standards, limited programming, few available channels and outrageously expensive equipment. However, with the ratification of the advanced Television Systems Committee (ATSC) Digital… Read more »

Environmental Acoustics: Is It Noise Or Is It Sound?

How loud is too loud? If you have ever dealt with this question, personally or professionally, you know that the answer is difficult to determine. All kinds of factors, from the time of day to personal sensitivity, influence the subjective cry “Too much noise!” In fact, the term noise is used to indicate any sound… Read more »

Display Technology – Part 2

In a previous blog post we covered the differences between projectors and monitors and looked at the advantages and disadvantages of current technology including analog verses digital technology. In this issue we will look at the features of brightness, resolution, and size. The brightness of the display is measures in ANSI lumens. It is very… Read more »