v21.38

Replaced 2 default air brake sound variants.
Finetuned sound of flags in the wind.
Finetuned F22 jet fighter sound. [ATS edition]

v21.37

Fixed the bug in the vanilla game where F22 jet fighters don't have a big enough sound range. [ATS edition]

Implemented realistic sounds for the F22 jet fighters with amazing sound range, replacing the default F22 jet sounds.
The sound is mixed so it sounds accurate at each angle - a true 3D sound! [ATS edition]

Implemented subtle sounds of flags in the wind.
Added wind turbine sounds for more wind turbine variants.
Optimizations for sound files without quality loss.

v21.36

Added airship / blimp sounds. [ATS edition]
Modified the default lift axle sound to use custom sound volume attenuation curves.
Custom sound volume attenuation curves adjusted for air brake sounds.
Optimizations for files without quality loss.

Updated mod description

v21.35

Added general sounds for ocean waves.
1.39 support dropped on Steam Workshop in preparation for 1.41.

v21.34

Implemented radial engine biplane sounds for all biplanes, replacing the default biplane sounds.
The sound is mixed so it sounds accurate at each angle - a true 3D sound!

Subtle variations implemented for the default wiper stick sound.

v21.33

Replaced the default short Boeing engine sound loop (which doesn't follow the plane) for takeoffs and landings with general airport runway ambience.
This sound is softer and has a higher distance range so it's audible within the airport area and won't feel unrealistic when a plane isn't present.

Extended range and added extra layer for the sound of Boeing 737 taxiing.
3D positioned default lift axle sound to be closer to the axle (correct me if it should be closer to the engine).
Removed 1 air brake sound variant.
Reduced some sound file sizes without quality loss.
Reduced cooldown for air brake sounds.

v21.32

Subtle variations implemented for the default light switch sound.
Slight reduction in volume for PrePass transponder sounds for weigh stations.
Reduced file size without quality loss.

Updated mod description

v21.31

Get ready for plane spotting! Realistic distant and closeup sounds have been added to the flyby animation of the Boeing 737.
It will also sound different if it flies directly above you and will sound a tiny bit louder at night due to the effects of refraction.

Reduced helicopter sound file size without quality loss.

For modders: reefer.soundref file is now deleted.
reefer_up.soundref and reefer_down.soundref will be used instead for the respective trailer brace sound event (applies to reefer trailer sounds).