I just love this deep rich harmonic sound with some phase modulation! i've tried to capture it the last month and half and finally managed it. There's quite a lot of air traffic (planes and helicopters) here in prague - písnice, but most of the helicopters have poor sound. It is bell 407 helicopter ok-alb in black/beige color operated by blue sky service (http://www. Ok-alb. Com/). Flight mode-s code a37a9ea. First it approaches with the deep harmonic sound, then it flies by overhead with a more noisy mid-spectrum sound. Recorded on zoom h4nsp, this time with 4gb sd card which has far lower startup time than 32 gb one (like 12 secs compared to more than a minute). Besides the helicopter itself there are some birds singing, insects buzzing and some rumble from the wind (i didn't manage attach the deadcat windshield so quickly). Basic frequency: ~ 33. 87 hz. Original filename: 160703-000. Wav.
ผู้เขียน: Bzamecnik
