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In page Albert Schweitzer:

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In the Schweitzer method, the figure-8 is replaced by two small diaphragm condenser microphones pointed directly away from each other. The information that each capsule collects is unique, unlike the identical out-of-polarity information generated from the figure-8 in a regular mid-side. The on-axis microphone is often a large diaphragm condenser. The technique has since been used to record many modern instruments.[citation needed]