Bats recorded along the lagan river near belfast in september 2019. This recording was originally made at 192 khz but the registered sample rate has been changed to 16 khz in order to make their ultrasonic calls audible in playback. In this excerpt you can hear social calls (the trills), soprano pipistrelle echolocation (the higher pitched chirps) and common pipistrelle echolocation (the lower pitched chirps). Recorded on a sony pcm d100 using knowles ultrasonic mics. Noise reduction has been applied.
Baltimore, 2012: arrieta (bal) pitches to pena (tb) in the top of the 1st inning. Four pitch at-bat: 1)called strike, 2)called strike, 3)foul, 4)swinging strike.
Field recording of birds in my neighborhood and backyard on the east coast of the u. S. I believe a cardinal is most prominent here, but i am not an ornithologist so cannot say for certain. Some smaller birds (finches?) also audible. Recorded through an open window of a screened porch with a tascam dr-40x. Raw recording; a bat crack from a nearby athletic field is audible.