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      05-29-2014, 11:20 AM   #23
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Quote:
Originally Posted by nachob View Post
I still don't understand why they couldn't just tune the exhaust to give you 3% more sound? Even Ford can do that?
From the article:
" the electronic noise (which BMW calls Active Sound) will instead simply be a real-time amplification of induction noises actually produced by the engine."

So you see, a louder exhaust would not be a solution. Turbo cars muffle induction noise which is a small part of the overall noise produced by a car. BMW's solution is to use active sound to enhance those induction noises and deliver them directly to the cabin.
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      05-29-2014, 11:21 AM   #24
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My guess is that turbocharging tends to squelch the higher frequencies and are more bassy. Plus, the car is relatively well insulate, which tends to further suppress the higher frequencies more than the lower frequencies. However, the high frequencies are likely to be most helpful when trying to judge where you are in the rev range or how the engine is responding to the current load. As such, my first guess is that BMW is trying to equalize a little of what is suppressed by the turbos back into the cabin to give us better feedback. Most of us will either find it acceptable or enjoyable is my second guess. It will probably be a slightly refined version of the M5, which I haven't heard, since things tend to be improved along the way.
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      05-29-2014, 11:29 AM   #25
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Originally Posted by mxa121 View Post
Since character is an immeasurable quantity, I am sure it is volume.
If it came from engineering, I'd agree. But if it came from marketing, who knows that pseudoprecision they would use?
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      05-29-2014, 11:36 AM   #26
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"2-3%" , sounds like its not even worth it.
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      05-29-2014, 11:37 AM   #27
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Quote:
Originally Posted by V-Viper View Post
"2-3%" , sounds like its not even worth it.
way to keep the weight down bmw
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      05-29-2014, 11:37 AM   #28
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BS! Why would you go to all the trouble and expense to get 2-3%? I don’t buy this
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      05-29-2014, 11:39 AM   #29
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i found it stupid to have all this work and tech to add 3% of fake sound. What's the point?
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      05-29-2014, 11:41 AM   #30
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Quote:
Originally Posted by Audio Fan View Post
My guess is that turbocharging tends to squelch the higher frequencies and are more bassy. Plus, the car is relatively well insulate, which tends to further suppress the higher frequencies more than the lower frequencies. However, the high frequencies are likely to be most helpful when trying to judge where you are in the rev range or how the engine is responding to the current load. As such, my first guess is that BMW is trying to equalize a little of what is suppressed by the turbos back into the cabin to give us better feedback. Most of us will either find it acceptable or enjoyable is my second guess. It will probably be a slightly refined version of the M5, which I haven't heard, since things tend to be improved along the way.
This.
Whereas the M5 fake sound is more across the range, they probably realised it would be better to only concentrate on the high frequencies (ie. the 'rasp') and allow more natural noise through in the low range.
Thus 3% is not a lie - but probably only in wave energy terms - you would still probably notice a difference when you turn it off, like when your tweeters blown.
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      05-29-2014, 11:41 AM   #31
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The bottom line is this is another band aid for a turbo motor.
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      05-29-2014, 11:42 AM   #32
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Originally Posted by igom3 View Post
BS! Why would you go to all the trouble and expense to get 2-3%? I don’t buy this
Ditto, it's BS and also besides the point. Enhanced, fake whatever. It's not about it sounding good, its about the direction BMW is taking. They go to Wizard of OZ lever fakery instead of doing something real with the pipes. They drop the easy to read oil temp gauge on 235i for a logo on the instrument cluster. They make a carbon driveshaft for weight but make idrive, power seats, display mandatory. The 1M had real exhaust sound and it was basically the same 3.0L twin turbo motor, why this this?

This is NOT WINE! It's grape juice with a label that "Vin, Appellation de Origine Controlle" but still freaking Welch's juice with 3% antifreeze and because it tastes OK, most of you are saying what's the problem with that?
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      05-29-2014, 11:48 AM   #33
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Quote:
Originally Posted by Keto View Post


I'm fairly convinced after reading reviews and the discussions here that it's like reading a wine forum where a bunch of people who have never tried the wine argue about how tannic it is, or whether it really has notes of toasted oak and blackberries.

Who would do that? TASTE THE FUCKING WINE. Likewise, let's bitch about the sound after we've heard it. Let's complain about the steering feel after we've driven it. Certainly let's avoid parsing the language of a short first drive review.

I am tired of reading arguments about differing interpretations of subjective opinions that are likely all as inaccurate as if we all tried to guess someone's weight from their profile pic.
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      05-29-2014, 11:49 AM   #34
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Quote:
Originally Posted by turbo8765 View Post
The bottom line is this is another band aid for a turbo motor.
The turbo motors will never sound as good as the NA motors, but the 1M which is basically the same motor sounded really good so it is absolutely possible to make a good sounding exhaust.
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      05-29-2014, 11:50 AM   #35
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DO NOT LIKE!! Was so surprised by this! Dissapointed!!! those older vehicles (e46, e36 ///M3's) sound incredible without this active sound shit, unless they had something we didn't know about! Something I would expect Mercedes-Benz to do if they haven't yet.
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      05-29-2014, 11:50 AM   #36
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I think the complaints about active sound are valid. What people want is what they've come to expect from the past. Sound is just like any other characteristic of the car. In the older cars (NA engines, I know) there was fantastic induction noise coming from trick airboxes or piping directly from the intake through the firewall. You could feel the noise in your chest on e85 z4 non-M models, and it would nearly shake the windshield. It's just not the same as noise coming from the speakers, synthesized or not. Let me put it this way: if they announced the next M5 would get an electronic "diff" a la 135i, people would understandably be upset, because it's a significant change in what most would say is the wrong direction.

...and BS on the 2-3%. If it were that trivial, they wouldn't have bothered.
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      05-29-2014, 11:54 AM   #37
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Quote:
Originally Posted by nachob View Post
Ditto, it's BS and also besides the point. Enhanced, fake whatever. It's not about it sounding good, its about the direction BMW is taking. They go to Wizard of OZ lever fakery instead of doing something real with the pipes. They drop the easy to read oil temp gauge on 235i for a logo on the instrument cluster. They make a carbon driveshaft for weight but make idrive, power seats, display mandatory.
The sound has been manipulated for years. Why is it called a muffler? Pipe shape, muffler design, etc. are all carefully manipulated to make a sound that is entirely different from what it would be if the exhaust was just a big hole in the hood. Now that there is electronic manipulation of the sound instead of pipe shapes, OMG NO IT'S SO FAKE. This sounds ridiculous, like "shaken, not stirred" and other meaningless hokum.

If you don't like how it sounds, change the exhaust, do the easily searchable-on-the-forums trick to disable active sound, or don't buy the car. The pseudoreligious whining about BMW losing it's soul has to go, though. Porsche built a SUV, and I'm still waiting for the promised mass suicide of 911 purists.
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      05-29-2014, 11:57 AM   #38
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Try it, if you don't like it, either unplug it, change the exhaust, or don't buy it. So much engineering goes into these cars, I can't imagine it being a negative or deemed a waste for the vast majority of us. If you are the audio equivalent of a wine guy that can tell what side of the road the grapes were grown on at a vineyard in Bordeaux AND fret over that difference, this may not be the car for you. I will bet big dollars that you will be able to hear a very noticeable difference, and it will make sense, whether you like it or not. BMW isn't going to add mics, amps, audio processing, and speakers to a car in which they are desperately trying to keep the weight and manufacturing cost down for nothing or at the expense of detracting from the driver experience. I say run Chicken Littles, run.

Edit: Keto, We simultaneously posted. Excellent point on the acoustic trickery with mechanical means.
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      05-29-2014, 11:57 AM   #39
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Quote:
Originally Posted by V-Viper View Post
"2-3%" , sounds like its not even worth it.
Exactly, there is no way that is an accurate number. The ///Marketing team in effect again to make everyone feel good.
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      05-29-2014, 11:59 AM   #40
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Quote:
Originally Posted by Keto View Post
Porsche built a SUV, and I'm still waiting for the promised mass suicide of 911 purists.
Well, that would also help thin out some of the trolls here. So I'm all for it
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      05-29-2014, 12:03 PM   #41
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Quote:
Originally Posted by nachob View Post
Listen to what? You guys don't get it. It doesn't matter how it sounds. It is electronically enhanced and not the 100% exhaust sound. What you guys are saying is it doesn't matter if Lance Armstrong took enhancers to win 7 Tours.....he had great finishes. The results do not justify the means. There are many turbo cars that sound good without having to resort to this.

Furthermore and even more troubling is that BMW didn't just let you switch it off easily. I understand in this plastic society where perfect 16 year olds get fake breasts and nose jobs that there are many that love fake or enhanced but BMW should at least let you switch it off.
I agree on the switching off and I agree there are many other less well performing turbo cars.

LOL, first world problems.
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      05-29-2014, 12:11 PM   #42
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You can switch it off in M5 through coding like I've done.
Also locked open the exhaust flaps, it's now sounding great and like it should have from the factory.....
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      05-29-2014, 12:28 PM   #43
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Active Sound?? WTF?!?
If I want more sound I just set down the side windows
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      05-29-2014, 12:34 PM   #44
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Just make it a naturally aspirated engine next time.
No need for Active Sound bull crap, save the cost and less criticism.
Simple as that!

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