Recorded the 16th july 2012, 06:11 pm (unknown temperature, but hot, >20º, and windy) in a Pinus nigra forest (like this one). The recording has to be hardly filtered in order to take out the wind noise.
[It was used a FOSTEX FR 2LE field memory recorder, mode stereo BWF48/24 bits, connected to a an unidireccional microphone RODE NTG3 and a cardioid microphone SHURE SM58]
The recording contains a whole song fragment of about 10 seconds in between the end and the beginning of other two. The spectrum of energy is from 11 to 18 kHz, with three peaks at 12.3, 14.4 and 16.6 kHz. There is a rate of about 280 phonatomes/s, but seem to be paired (140 "double phonatomes" or motifs per second). The song begins slowly, then increasing in amplitude, and ending abruptly.
[Iberian Peninsula: Catalonia: Tarragona province: Priorat: Cornudella de Montsant: Pla del Grau Gran, 1024 m][GoogleMaps]
Click here to listen (also download is possible by registering)
http://yourlisten.com/channel/content/16950313/Tibicina_quadrisignata?
A detailed view of 0,1 seconds (from 10.0" to 10.1"), showing 14 double-pulses.
Cap comentari:
Publica un comentari a l'entrada