Jecklin Disk
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A Jecklin Disk is a sound-absorbing disk placed between two microphones to create an acoustic "shadow" from one microphone to the other. The resulting two signals can produce a pleasing stereo effect.
Most often, a matching pair of omnidirectional microphones are used.
The technique was invented by Jorg Jecklin, the former chief sound engineer of Swiss Radio. He referred to the technique as an "Optimal Stereo Signal" (OSS). Jecklin used omnidirectional microphones on either side of a 12" disc of about 3/4" thickness, which had a muffling layer of soft plastic foam on each side. The capsules of the microphones were above the surface of the disc just in the center, 17 cm apart from each other and each pointing 20 degrees outside.
[edit] See Also
Josephson Microphones [1]
- This page has a picture of the technique.
