Ultrasounds of several bats flying over my roof at Sevilla, South Spain. No idea on the species, they were quite large (wingspan around 30 cm). I lowered the pitch of the sound from 20-22 kHz to 7 kHz to make it audible. Rode NT4 > Shure FP24 > iRiver H120 (rockbox) / ultrasonidos de unos murcielagos bastante grandes que vuelan sobre la azotea de mi casa en Sevilla. He bajado el tono original de 21 hasta 7 KHz para que se pueda oir
Type
Flac (.flac)
Duration
0:49.482
File size
1.8 MB
Sample rate
44100.0 Hz
Bit depth
16 bit
Channels
Stereo
Comments
19 years, 6 months ago
These bat recordings are great! Thanks for lowering to 7KHz! ... the one Pitx lowered to around 10-11 KHz still left parts inaudible for me. Some bats, I understand, call at around 40 Khz and I think an ultrasonic detector would be needed - but how to record the output? Probably need a heterodyne process.
