Ford Focus ST Induction Noise Amps Up: Teaser Recording

Malcolm Flynn | May 16, 2012

In most passenger cars, engine noise in the cabin could never be described as a feature. As a mark of engineering prowess, and as a marketing tool, a quiet cabin is a key part of any new car's development.

For dedicated sports cars, however, it's a case of the-noisier-the-better. To this end, the team behind Ford’s upcoming Focus ST hot hatch have developed a device that amplifies induction noise.

Officially known as an ‘Active Sound Symposer’, the device will form a part of the inlet manifold in the new ST's 186kW 2.0 litre EcoBoost engine, with sound modulated via an electronic valve that reacts to driver inputs.

Similar induction amplifiers have been used previously in the Ford Mustang and Mazda MX-5, but this is the first to feature electronic actuation.

“The sound symposer gives the Focus ST an aural split personality. In everyday driving, the car is composed and refined. But under full throttle, we unleash the sonic hounds. It’s a beauty and a beast”, Ford’s Lisa Schoder says.

The system is designed partly to challenge the rorty sounds created by key rival the Golf GTI, but it also signals acknowledgement that the new ST hasn’t quite got the natural singing ability of the previous model's five-cylinder mill.

“For ST drivers, it’s not enough to have a car that is fast or feels fast. It also has to sound fast,” engineer Christopher Myers says.

Catch the sound below:

2013 Ford Focus ST - Active Sound Symposer by themotorreport

Ford Australia has confirmed that local models will wear the ST badge (rather than XR5 or XR4) and a local launch is expected before the end of the year.

Filed under: Technology, focus, ford focus, hot hatch, News, performance, ford, ford focus st, enthusiast, focus st, ford st

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  • BH says,
    3 years ago that investment could of obtained an extra 15kw surely?!?! Can I get Ford to record me going vrrrrrrrrm verrrrrmm instead? yawn
    • Roger says,
      3 years ago
      That being said, there is a point of diminishing returns, the 15Kw may result in negligible performance compared to the trouble of meeting increasingly strict regulations. I have altered my perception of absolute outputs and refer to proven performance. The aural experience does send a shiver down your spine and adds to the all round attraction. I believe Ferrari invest millions in sound engineering to provide the correct aural tones. I believe the 360 or 430 involved a sound engineering company in Melbourne tuning the exhaust note, and they spent millions. This sounds a lot more legit than the M5 sound system feedback.....that is can M division come up with such an offputting concept. Top Gear make a complete joke out of it.
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