Finally, an Affordable Ambisonic Microphone

twirling720lite-200pxLong, long ago, in a city far, far away I was a college student. I was studying media arts, and somewhere along the line decided to do a paper on an emerging new approach to recording called Ambisonics. This is a most elegant approach to recording conceived by Michael Gerzon, a brilliant, English mathematician. Beyond simply the theoretical, Gerzon developed a microphone in support of his idea, which became the Soundfield Microphone.

How I lusted after a Soundfield microphone, and the four-channel recorder necessary to make field recordings. Manufactured in England by Calrec, the Soundfield microphone cost upwards of $10K on its own. As a not quite starving, but certainly hungry student, this was far beyond my reach.

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Recommended Reading: 3D Sound Overview

3D Audio Overview PDFA long time ago, when I was still in school in Toronto, I became fascinated with an obscure form of surround sound recording known as Ambisonics. In researching a paper for school I became smitten by the approach conceived by English mathematician Michael Gerzon. It’s a truly elegant system, something beyond the commercially successful surround sound approaches that we all know.

I was especially impressed with the Cowboys Junkies 1988 album, The Trinity Session. It was recorded in a old church on King Street in Toronto, in a single day. The band played in this place with incredible acoustics, ringed around a single Calrec Soundfield microphone. The Soundfield microphone is the surround microphone design based upon the theory originally published by Michael Gerzon at Oxford University.

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