Entries by Pat Brown

Sorensen Sez… Can a Boom Stop a Swirl?

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By Jim Sorensen

There’s something fascinating about science, isn’t there?

Take the Mississippi River. There it is, this big old usually slow flowing curly-qued stream that gives every impression that it’s always been like that…running from about Minneapolis to the … Read more

Composite Bass Tone-Burst Test Track

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D. B. (Don) Keele, Jr., Sept. 16, 2004 (Revised Aug. 29, 2005), Copyright 2005, D.B. Keele, Jr., Harman Int. Industries

Here’s a handy very-music-like test signal to assess the maximum peak output capability of subwoofers and systems over the range

… Read more

CLF News

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The Common Loudspeaker File format (CLF) continues to gain acceptance and momentum within the audio industry. The CLF puts the specifications that CLF graph showing polar and balloon datasound system designers need at their fingertips in a common presentation format. In addition to the standard “spec … Read more

CLF News

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By Pat Brown

The Common Loudspeaker File Format provides a cross-platform format for the distribution of loudspeaker specifications. In addition to being an electronic specification sheet, the CLF data files can be used directly by a number of room acoustics … Read more

Do-It-Yourself Cardioid Sub

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By Dale Shirk

Dale Shirk helps us to understand the principles of how the cardioid sub can control the directivity in lower frequencies.

“Low frequencies are omnidirectional.” Seems we’ve heard that age-old wisdom since we were infants bouncing on mama’s … Read more

What is the Common Loudspeaker File Format (CLF)?

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By Pat Brown

The Common Loudspeaker File Format provides well-defined loudspeaker specifications and platform-independent data for acoustics modeling software applications.

Sound system designers need a base-line set of loudspeaker specifications to locate suitable loudspeakers for their projects. The problem is … Read more