Golf 6 GTD Sound Aktuator stilllegen | Posts 32+

In the Focus ST, it feels spatially realistic, but for many, the initial euphoria quickly becomes annoying. The pneumatic-mechanical solution is particularly sensitive to resonance, and this is especially noticeable when the vibrations within the air chamber match the resonant frequency of the membrane, causing the largest deflection. Initially, experiments were probably conducted with the size of the membrane and its stiffness in the pre-production phase. I can still remember the first, already driveable examples at the Leipzig AMI, each of which (internally) sounded different. Finally, the Focus ST that I had driven several times in my friend's circle sounded different. He has a significantly stronger acoustic foundation and has been tuned to lower frequencies. However, the pre-production models in Leipzig did not offer such a "powerful engine sound" at all, were overall quieter inside, and only really made noise at higher speeds.

A major drawback of the Focus is that, subjectively, it feels louder in the passenger seat, which further annoys other passengers if the noise is perceived as disturbing. The above-mentioned drawback has since been mitigated inside the car to reduce the noise level. However, the owner still didn't want to completely eliminate the noise. Fortunately, since then, it has been reported that the engine can also produce other pleasant sounds, and even the stock exhaust system produces a rather sporty sound from the muffler. All of this has been completely overlooked so far.

Interestingly, starting up a vehicle that was completely frozen and therefore had a stiffer membrane was also quite amusing: Your engine noises reminded me directly of the initial start-up and lowering of the engine speed to normal, almost like a Lanz Bulldog! "Plopp! Plopp! "Plopp"