Class 375/377/387 Sound Mod

The Electrostars are one of the most iconic commuter rail platforms you can find in the UK - all electric, and quite standard trains. Many operators use them and they continue to serve the busiest regions of the network. As the Train Sim World franchise continues to grow with greater quantities of the same train, it's time to produce one mod which affects them all. The audio is as follows:

Plenty of inverter sounds

• The new soundset has separate interior and exterior recordings mixed effectively
• Separate sync sounds are used for trains which are capable of 25kVAC (15P>6P>5P>3P>1P) running or 750VDC (6P>5P>3P>1P) as recorded
• On the interior of the train, the PWM duty cycle is reproduced in real-time using the measured sideband spread from the inductor recordings of the train
• Inductor recording for 25kVAC operation: https://youtu.be/lm3RdMm5pzc
• Inductor recording for 750VDC operation: https://youtu.be/BRwYK2Qv9kM
• These are probably best enjoyed in the passenger mode experience

Detailed gearbox audio

• Not only do I aim to preserve all harmonics as previously mentioned, I use additional cue nodes for smoother transistions
• Recordings are as heard in: https://youtu.be/DmuWcmli-RY?si=D9UhARnutSeZGapC and https://youtu.be/BHQ8Ii0AJeQ?si=xFP4zs3TsJPX-0gk

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 377/2 (West Coast Main Line South)
• Southern Class 377/4 (Brighton Main Line)
• Southern Class 377/4 (East Coastway)
• Gatwick Express Class 387/2 (Brighton Main Line)

Known Issues