j*********u
发帖数: 34 | 1 这么优秀的功能也不好好在广告里吹嘘吹嘘！
http://www.popularmechanics.com/cars/news/industry/the-rise-of-
Anyone who's heard a Ferrari V-8 at full wail knows perfectly well that
engines make music. But today, that vroom-vroom is getting harder to hear,
thanks in equal parts to turbochargers that muffle the noise, increasingly
insulated cabins, and government noise regulations.
Automakers are well aware that a snarly engine note enhances the behind-the-
wheel experience—especially for sporty cars—and all sorts of devices have
been used to let in this "good" noise. The Corvette's exhaust system has a
valve that opens under full throttle and bypasses the muffler. The Porsche
Cayman and the Ford Mustang both have "noise pipes" that connect the intake
system to the cabin. These passive systems, however, are slowly being
replaced with active systems that play a prerecorded track through speakers.
Case in point: VW's GTI used to have a noise pipe, but when the latest
version appeared in 2011, the pipe was replaced with the Soundaktor. This
system uses a hockey-puck-size speaker mounted on the firewall to generate
extra noise. VW didn't exactly advertise the feature, and when word got out,
the forums lit up.
"The Soundaktor is only there to lie to me," fumed one GTI owner on vwvortex
.com when he found out his car has the system. "It's false advertising,
plain and simple."
Andrew Wong is a 29-year-old engineer from Detroit. When he learned that his
2011 GTI had the Soundaktor, he simply removed it. Now he relies on an
aftermarket exhaust system for better noise. "I want to hear the engine,
rather than some version of the engine being played to me," he says.
VW is not alone. The new BMW M5, which ditched the sonorous V-10 for a twin-
turbo V-8, plays an engine soundtrack through the car's audio system. From a
carmaker's perspective, these active sound generators have definite
benefits over a sound pipe: There's no need to cut a hole in the firewall or
package a separate tube in the already crowded engine bay. Plus, the active
devices allow a far greater degree of tunability and can be used to mask
unwanted noise.
It remains to be seen just how far automakers will take these systems, but
in the future, you may be able to toggle a switch that makes your Prius howl
like it's got a V-8.
Read more: The Rise of the Fake Engine Roar - Popular Mechanics | n******t
发帖数: 4406 | 2 我觉得一定要听声音的都是有病;.
the-
have
【在 j*********u 的大作中提到】
: 这么优秀的功能也不好好在广告里吹嘘吹嘘！
: http://www.popularmechanics.com/cars/news/industry/the-rise-of-
: Anyone who's heard a Ferrari V-8 at full wail knows perfectly well that
: engines make music. But today, that vroom-vroom is getting harder to hear,
: thanks in equal parts to turbochargers that muffle the noise, increasingly
: insulated cabins, and government noise regulations.
: Automakers are well aware that a snarly engine note enhances the behind-the-
: wheel experience—especially for sporty cars—and all sorts of devices have
: been used to let in this "good" noise. The Corvette's exhaust system has a
: valve that opens under full throttle and bypasses the muffler. The Porsche
| h********n
发帖数: 117 | 3 The new BMW M5, which ditched the sonorous V-10 for a twin-
turbo V-8, plays an engine soundtrack through the car's audio system
这个真是牛啊 | h********n
发帖数: 117 | 4 Just listen to 1:35, and compare with 4:05 | j*********u
发帖数: 34 | 5 不许这样侮辱大众和宝马的目标客户！
【在 n******t 的大作中提到】
: 我觉得一定要听声音的都是有病;.
:
: the-
: have
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