ultrasonic calls of bats of an unknown species passing, filtered to remove every signal in the non-ultrasonic band. Pitch is in the range 20-22 KHz (and hence inaudible; sorry, effect gatherers), but I'm uploading as a curiosity and to see how Freesound preview handles it. I would appreciate if someone could suggest a way to process the sample to make it audible to humans. RodeNT4>ShureFP24>iRiverH120 (rockbox firmware). /ultrasonidos producidos por murciélagos. Si alguien sabe alguna manera para hacer esto audible para las personas se lo agradeceré.

Comments

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  scoty1991 4 years, 8 months ago

  haha... i can hear this its very faint but it is there... i kind of high pitch yip every so often!
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  pitx 6 years, 11 months ago

  I tried to make it audible
  http://freesound.iua.upf.edu/samplesViewSingle.php?id=19374