Train Simulations rolling stock now missing certain brake-related sounds

[INRDfan]

After installing the SP Shasta Route and updating my version of Open Rails from 1.3 to 1.5, I have noticed that my Train Simulations OR rolling stock has stopped making certain sounds. Notably, I've noticed that the hissing noise when charging trainline air brakes has disappeared, as has the emergency "dump" noise and the brake squeal when a train is in emergency. I have not modified anything within any .ref files, or changed anything pertaining to the sound files themselves. I can confirm that all of my stock from Seligman 2.0, Ruel Sub, Mullan Pass, and Shasta is missing these sounds now. Does anybody have any idea as to what may be causing this?

[geepster775]

It seems to be an issue with 1.5.1 or 1.5.1 + testing versions.

ORTS Seligman 2 and Ruel were the routes that really upped the sounds. I went back an re-ran some Ruel equipment in 1.4 stable, and when I big-hole the train, I get the e-brake sounds/screeching. Same equipment, same activity run in 1.5.1 stable or higher the sounds are not there.

I ran a Shasta consist in 1.4. and when I big-hole the train, I get the screeching brake sounds.

Not a TS route/equipment problem, evidently, but looking more like an OR coding problem.

[geepster775]

Update: I found a 1.4.524 testing copy, dated 5-20-22, and the sounds are missing when I plug the Shasta consist. So sometime between 1.4 stable dated 10-20-21 and this 1.4 testing copy dated 5-20-22, they stopped working well before 1.5.1 stable dated 12-3-22

[eric]

I'd suggest filing a bug report with the ORTS team... https://launchpad.net/or

[pschlik]

This is due to a change in the way emergency braking works to make it more accurate to real life. Unfortunately, the stable 1.5.1 release had some, but not all, of the changes required to accurately represent real emergency brake behavior. (Long story short: Emergency brake applications don't travel the whole length of the train.) Even once those changes are in version 1.6, old content will require modifications for the emergency brakes to fully function as it's impossible to assume a train car should or shouldn't have all the bells and whistles for emergency braking.

In the meantime, let's just hope you don't need to use the emergency brakes too often.

PS: I have changed the code so that train cars made without using the new emergency features will revert to the old v1.4 behavior, which will solve the sound problem but won't suddenly improve realism. This change is already in the unstable build and will (hopefully) be there for v1.6.