Entries by Pat Brown

CLF Viewer Adds Direct-Field Averaging Feature

By Pat Brown

Most loudspeakers need some direct field equalization. CLF Viewer added direct-field averaging for loudspeaker equalization.  Read to learn more.

Regardless of the acoustic environment, most loudspeakers need some direct field equalization. This is the first step of … Read more

Describing Inside the Box from Outside the Box

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

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

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

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

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

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