Alo, I have made a mod which makes the Electrostar sound gooder using my michaelphones and spare time. Because I am lazy, I will copy and paste the description (guilt-free) from the site where you can down the load: https://www.trainsimcommunity.com/mods/c3-train-sim-world/c20-sounds/i4004-class-375377387-sound-mod Plenty of inverter sounds The new soundset has separate interior and exterior recordings mixed effectively Sounds include the switch from the CPWM type to the SVPWM technique before synchronisation Sync includes all harmonic audio, not only preserved, but as-recorded Detailed gearbox audio Not only do I aim to preserve all harmonics as previously mentioned, I use additional cue nodes for smoother transistions New running recordings Audio sampled from 377419 has been mixed anew to the Electrostars There's a 20% chanced that knackered wheel tread sounds will play at high speed More running recordings are used with the new mix than before Additional flange squeals Several clips have been implemented for these trains at different speeds These have all been recorded from 377419 At very slow speeds, sporadic scraping noises play For moderate speeds, squeals become intense - a realistic volume level Once the train travels faster, squeaks are more airy - like a grating sound Subtle wheel flange noise can still be heard at high speeds Dozens more track joint clips 93 recorded Class 377 and Class 387 track joint sounds have been added More violent volleys of clicks and clacks will start playing as the train travels faster over joints Additional sounds have been mixed for the interior of the train Clearer miscellaneous sounds Extra recordings have been included to replace, squeaks, rattles, converters... etc Where possible, dedicated recordings are provided for their respective trains such as horns, fan whirs, doors... etc Affects the following trains Southeastern Class 375/9 (Southeastern Highspeed) - SE Blue Southeastern Class 375/9 (Southeastern Highspeed) - SE White & Grey Southern Class 377/4 (Brighton Main Line) Gatwick Express Class 387/2 (Brighton Main Line) Recordings are as heard in: