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DPA Hydrophone 8011 ユーザーマニュアル
User's Manual
Using the Hydrophone
Stereo recording in water
Due to the omnidirectional pick-up pattern of the Hydrophone it is possible
to record A-B stereo using two 8011 Hydrophones. The spacing between the
two Hydrophones needs to be 4 times larger (approx. 1-2 meters) than when
making A-B stereo recording in air. This is due to the fact that wavelengths
are 4-5 times longer in water than in air. Please see the table below.
Speed of sound in water
6