LIRR M3 & Harlem M3a Sound improvements

Updated 17 May 24 ATC & Alerter Bells added to LIRR M3
Updated 13 May 24 adding support for the LIRR M3

Fixes running sound volume levels in the cab so you can hear rolling, flange, points/switches, on-train cab rattles, squeaks & wind sounds giving a more immersive sound experience similar to the new LIRR M7/9
New speed curves to adjust flange and brake squeal at lower speeds
Swapped ATC and Alerter beeps on the Long Island M3 to use bells, as per the original TSW2020 version

THIS MOD DOES NOT WORK WHEN DRIVING THE M3 on LIRRv1.
I don't know why, but the audio just dies. Only use on the new LIRR Extended route

https://youtu.be/0R_9O1Phrpk (updated clip)

Tags: harlem lirr m3 sound