I played the Type 95 Heavy (JP tier 4 HT) and the tier 7 premium US TD Scorpion the other day while using the Jingles voice pack (not the one for when you are spotted) and the engine sound of the two tanks I mentioned, isn't there. The engine sound is there when I play the Russian tier 8 IS-3 and tier 7 S-51. There is also a few other light tanks around tier 7 that is missing their engine sounds while using said mod.
I do know that I got the engine sound on all tanks while not using the voice mod.
I'd love to attach screenshots, but you can't hear sounds there, can ya?
Aslains_WoT_Logs.zip