July 3rd, 2016

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


  • avatar
    VKfree 5 months, 1 week 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.

  • avatar
    Geminigeoff 3 years, 3 months ago

    background for some emergency exercise radio traffic

  • avatar
    magdigit 4 years ago

    Thank you for these two sounds together, exactly what I need for an online childrens story about Vietnam! :D

  • avatar
    SoundsLikeFun2me 5 years, 1 month ago

    It's beautiful in the beginning. Almost musical. :)


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