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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
Type
Wave (.wav)
Duration
0:50.182
File size
8.4 MB
Sample rate
44100.0 Hz
Bit depth
16 bit
Channels
Stereo
4 months, 1 week ago
amazing, thanks a lot !!!
1 year, 4 months ago
REALLY nice recording. I'm donating the time to animate a logo for Cincinnati Search Rescue Team. They donate their time to get nationally certified and assist authorities.
Thanks for sharing the file.
2 years, 11 months ago
Thank for this amazing sound, even with the small wind pops. Like Magdigit, I will use it for a part of a video about Vietnam war.