Entries by Pat Brown

Describing Inside the Box from Outside the Box

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Campbell’s Corner – By Dick Campbell

This is a fun article. It brings back memories of a presentation 15 year ago to the Acoustical Society, titled “On the Presentation of Large Amounts of Room Acoustic Data”, [1] where I showed … Read more

Balanced Ipod Output

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By Pat Brown

In this article, Pat Brown will show you a little trick to convert Ipod unbalanced stereo output to a balanced Ipod output.t.

Last issue I reviewed some portable media players to determine their usefulness as program sources … Read more

How to Build a Big Dummy Load

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By Pat Brown

An upcoming amplifier measurement project motivated me to build a rather robust dummy load.

Amplifier testing requires a load that can dissipate the power generated by the amplifier, preferably one that does not produce sound. Some very … Read more

Beam-steered Line Array Comparison

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By Pat Brown

How does a Beam-steered Line Array compare to a Horn Array in the same space? Pat Brown compared the two at St. Monica Catholic Church.

In June I had the opportunity to attend a line array demo … Read more

Direct-Field Coverage Quick-Check

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Theory and Practice – By Dale Shirk

Dale Shirk presents a practical way to check direct-field coverage in live spaces using tools you may already own.

It seems logical to stroll around in a room with a sound level meter … Read more

Always Test the Testers

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Don Davis frequently said to “Always Test the Testers”.  Pat Brown presents a scenario where he forgot to test the tester.

By Pat Brown

Sound system technicians should test the polarity of all components when installing a sound system. I … Read more

Anatomy of a Service Call

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Pat Brown took an average and simple service call and documented his steps to finding the problem and his solution to the problem.

By Pat Brown

The sound system in the Chapel at a local nursing home had all of … Read more