Coronavirus in sound Herautstraat 200504_0171.wav

Take 1. Compare the sound in one and the same location. One recording is from May 2019 and the other from May 2020. One recording is without covid19. The other is during covid19.

How I did compare;
On May 13, 2019 I made an audio recording from thirteen minutes past seven in the evening.
On May 4, 2020, I made a sound recording at the same time of the evening.
I put these two tracks together exactly in time in Audacity.
I adjusted the sound level of each track to the sparks that the electric trains make when they pass from one energy network to another. That is precisely in front of the microphone.
Then I looked where the quietest parts of both sound recordings coincided. I used these three minutes for the comparison.
In this audio file you hear the sound change every fifteen seconds.
The audio file starts with the corona-free part in 2019.

Both original audio files can be found below.
2019: https://freesound.org/people/klankbeeld/sounds/469990/
2020: https://freesound.org/people/klankbeeld/sounds/516742/

picture 2019

picture 2020

Date/time 2019: May 13th Monday 2019, 7.13 pm
Date/time 2020: May 4th Monday 2020, 7.13 pm

Weather 2019: 15c, clear sky, wind NE 3bft with gusts to 30km/h, 1037 hPa, humidity 34%.
Weather 2020: 15c, sun and some clouds, wind NE 3bft with gusts to 24km/h, 1020 hPa, humidity 47%.

Location; Herautstraat, ‘s-Hertogenbosch (Den Bosch), Noord-Brabant, Netherlands (Holland), Europe GPS: 51.68786 5.29119

Gear chain: Sennheiser mkh30/50 MS, in Rycote cyclone small, windjammer > Sound Devices 302 >Tascam dr-100 Mk2. Decoded Mid-side to STEREO

If any of these sounds have been of help, and you are feeling charitable, please do consider donating to Freesound to help keep the site running (a link is also on the home page). Any donations are greatly appreciated!

YOU ALWAYS HAVE TO CREDIT/ATTRIBUTE me (klankbeeld) and freesound.org in your work if you use this sound.
Please do it like this if possible: https://freesound.org/people/klankbeeld/
Thank you.
This sound may NOT be used in (royalty free) stock material. Don't put my raw sounds/files on youtube or anywhere else. You can use them in creative way as a part of art-form, but not "re-distribute" as (royalty free) stock material. Thank you.