Reflector microphones for field recording of natural sounds

@article{Swenson2000ReflectorMF,
  title={Reflector microphones for field recording of natural sounds},
  author={George W. Swenson},
  journal={Journal of the Acoustical Society of America},
  year={2000},
  volume={108},
  pages={2581-2581}
}
  • G. Swenson
  • Published 1 November 2000
  • Physics
  • Journal of the Acoustical Society of America
A directional microphone system for field recording of sounds in the air, for example, bird song or other animal activity, usually involves either a parabolic reflector to focus the sound waves on the microphone (transducer) element, or a linear array of transducers so phased as to respond preferentially to sounds from one directional sector. The latter system (the so‐called ‘‘shotgun’’ microphone) can be analyzed in a fairly straightforward manner. The reflector system, however, involving as… 

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A baffle‐type directional microphone
A simple and economical directional microphone has been investigated, consisting of a plane, rectangular baffle with an omnidirectional pressure microphone placed directly on its surface. Outdoor
IS FIDELITY FUTILE? THE ‘TRUE’ SIGNAL IS ILLUSORY, ESPECIALLY WITH ULTRASOUND
TLDR
No matter how perfect the recording equipment may be, there are acoustical influences that change signals in various ways that become especially significant for ultrasound and may pose important problems for echolocation.