v21.97

Rework of tire sound on asphalt mix with a blend of tire whine and interior rumbles, now better adapted for all camera views.
Temporary 1.43 truck attenuation fixes are now expired. This is in order to pave the way for sound mods that will implement their own attenuation for the base game trucks.

-- Important --
If you don't have a sound mod that provides soundproofing for your base game truck, you can use these:
ETS2 previous soundproofing: https://truckymods.io/d/euro-truck-simulator-2/previous-soundproofing-ets2
ATS previous soundproofing: https://truckymods.io/d/american-truck-simulator/previous-soundproofing-ats

v21.96

Horn sounds added for the 2008 Mercedes-Benz C-Class (W204 2008) in AI traffic.
"Removed harvester sound" feature is back and ready for grimes' seasonal mods, with the exception of New Summer. [ETS2 edition]

-- Other news --
Winter sounds addon has been updated to version 2. It's available on the Steam Workshop in time for the Winter season.

For TruckyMods users: Guest downloads are now available for the Sound Fixes Pack.
It is no longer mandatory to sign up to download the mod from there.

Note: The 1.43 attenuation and equalization fixes for interior cabins of vanilla game trucks will expire in the next mod update on December 14, 2021.
There is a modding guide available if you want to learn how to adapt these for your truck here: https://forum.scssoft.com/viewtopic.php?f=201&t=306500
It is likely future engine sound mods or an official patch will now adapt to fix the attenuation issues.

v21.94

Reworked engine sounds for the Citroën 2CV in AI traffic. [ETS2 edition]
Horn sound added for the Citroën 2CV in AI traffic. [ETS2 edition]

v21.92

Engine sounds added to the Citroën 2CV in AI traffic. [ETS2 edition]

Reefer trailer sound addon now available on the Steam Workshop!

v21.91

Initial compatibility update for ETS2 1.43.0 open beta. [ETS2 edition]

Fixes for sound equalization and dampening from the interior cabin sound update.
This will stop the sound from being louder than outside in vanilla game trucks.

v21.89

Added 2 air brake sounds to AI traffic truck air brake sound array.
Fixed issue of Freight Market reefer trailer sound loop not stopping after decoupling trailer.

v21.88.1

Fixed overlapping issue of ending sequence sound after trailer brace rotation.

v21.88

Reworked reefer trailer sound loop for reefer trailer sound addon.
2 new default air brake sounds added to array.

v21.87

Reworked reefer trailer sound loop and startup sound for reefer trailer sound addon.
Slight lowering of default reverse beeper sound volume.
Simplified default windshield wiper sound when wet.
Reefer trailer sounds added to default AI traffic reefer semi-trailers on the move.
Reefer trailer sounds added to Schwarzmüller Trailer Pack and Krone Trailer Pack reefer trailers in AI traffic. [ETS2 edition]
New workaround option to force the reefer sound loop to play - intended for use with ownable reefer trailers.

To use the workaround option properly:
1. Go into the Audio settings.
2. In the voice navigation menu, select "~ Function - Force enable reefer sound".
3. Click the Preview button.
4. Reselect your desired voice navigation option OR uncheck the voice navigation.
5. Drive as usual and the reefer sound will play when you are not stationary.

Note that the reefer beep & startup sound which plays when you're stationary is not available with the workaround option.
To stop the reefer sound with the workaround option, detaching the trailer may work. If not, restarting the game is the only way.

v21.86 + v21.85

2 new default air brake sounds added to array.
2 new gear shift sounds for AI traffic trucks added to array.
Fixed possible polyphonic issues when using more than 2 standalone air horns at once.
Standalone train horn now available! It also supports short honk durations. CAUTION: Volume level suited for 2 horns per truck.
Sound attenuation fixes for Harley Davidson motorcycle sounds in the Motorcycle Traffic Pack by Jazzycat v3.9 & v3.9.1.
Sounds added to the Lightning LS-218 and the Aprilia RSV4 in the Motorcycle Traffic Pack by Jazzycat v3.9 & v3.9.1.
Applied Aprilia RSV4 sounds as the default sport motorcycle sounds in the Motorcycle Traffic Pack by Jazzycat v3.9 & v3.9.1.
Applied Lightning LS-218 sounds as the default electric motorcycle sounds in the Motorcycle Traffic Pack by Jazzycat v3.9 & v3.9.1.