Great Train with bad sound. Märklin/Trix TGV Euroduplex

Somehow i decided that i had to buy a tgv highspeedtrain from trix (märklin) for my model railway. While optics and reliability are good, the sound is not great at all. Although Märklin is not known for making good sounds for their trains, it is quite disappointing to buy such a pricey train and being forced to turn the sound off becuse it doesn't add anything special to the train set...
FAQ:
Layout size (m)
480 x 130 + 170 x 110
Beginning of construction:
2011
Manufacturers of the tracks in visible layout areas:
Wooden sleepers: Tillig Elite Code 83
Concrete sleepers: Roco Line Code 83
Turnouts in in visible layout areas:
Tillig Elite
Tracks in non visible layouts:
Roco Line (wooden sleepers) Code 83
Trix C-Gleis Code 83
Ballast:
Koemo Modellbahnschotter
Signals:
Märklin, Modellbau Reinhardt, Signalmanufaktur
Controls:
ESU Ecos 50200
Traincontroller 8 Gold
Digikeijs switch and feedback decoders with occupancy detectors
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Camera:
Panasonic Lumix G70
Panasonic Lumix GH5
Panasonic Lumix G Vario 14-140mm f3.5-5.6 ASPH Power OIS
Panasonic Lumix G Vario 12-60mm f3.5-5.6 ASPH Power OIS
Editing software:
Hitfilm Express 16
Alex Anlage on Instagram:
/ alex.anlage
Read more about the layout (german)
stummiforum.de/...