Entries by OSA Integrated Solutions

Village of South Holland Brings in OSA Integrated Solutions to Create an Extraordinary Sound Experience at Veterans Memorial Park

In May 2015, the Village of South Holland chose OSA Integrated Solutions, powered by OSA International, Inc., to design and install a comprehensive sound system throughout its Veterans Memorial Park. The Veterans Memorial Park is where the community gathers for several events held throughout each year — sporting, festivals, marathons and many more. Over the […]

Sonic Outdoor Oasis Designed & Installed by OSA Integrated Solutions

When homeowners in the northern Chicago suburbs renovated their outdoor property, they turned to OSA Integrated Solutions, powered by OSA International, Inc., to design, configure and install a high-tech audio system throughout their stunning picturesque garden. The homeowners recently expanded their property and designed an inspiring landscape for entertaining during the warmer months. Upon completion […]

On Stage Audio Expands, Builds North America’s Largest Martin Audio MLA Inventory

With three locations in Chicago, Las Vegas and Nashville and a hectic schedule of live production work, corporate shows, product launches, TV broadcasts and special events; On Stage Audio (OSA) continues its national growth in audio rentals, service and production. As part of that growth, OSA recently purchased a number of additional Martin Audio MLA […]

So, where do I put this thing?

So you’ve got yourself one of those FFT measurement systems and a shiny new microphone and you want to know where to put the mic! This is one of the most asked questions about measurement systems I hear and the stock answer “it depends” isn’t very helpful. Let’s see if we can put people on […]

End-fire vs. Cardioid vs. Arc delay

A look at the pros and cons of each system Now that we have a firm grasp of each of these building blocks for directional arrays, let’s look at the issues they have. Cardioid If we imagine a cardioid setup configuration as in Fig. 1, with the rear source reverse polarity and delay equal to […]

Broadside Arc-Delay Processing

Part 3 of “building-blocks” is the broadside Arc-Delay array Here in part three were going to look at another fundamental building-block, the broadside array and the processing that can be applied to it. First we should look at the reasons for deploying this kind of array by looking at the traditional L-R split-array, as shown […]

End-Fire Arrays

How to build end-fire arrays, a variation on gradient arrays In our last article we covered the basics of gradient arrays, now we’ll build on that knowledge to look at end-fire arrays. Here, in Fig 1, we see two sources separated from their acoustic centers by a distance D and a delay has been applied […]

Subwoofer Directivity

Polar pattern control of multiple sources [3] Using directional techniques on Subwoofers can have beneficial advantages due to room coupling, etc. But a full understanding of how they work and what some of the shortcomings are of each system is needed. There’s no “magic-bullet,” but when used correctly these techniques can go a long way […]


In the last article we talked about setting the timing for delay or front fill systems. In this article we’ll talk about imaging. I’m sure we’ve all heard of the “precedence effect” or “Hass effect,” perhaps one of the most misunderstood principles in audio. It goes something like this: “I timed the arrival time between […]

Setting Audio System Delays

Many times we use multiple systems to meet our coverage needs, but getting these systems to “play well together” can sometimes be problematical. A typical strategy when aligning systems is to work from loudest to quietist, for now let’s assume that the speaker manufacturer has done his homework at the component level, so it’s these […]