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      12-01-2014, 08:22 PM   #1
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Active Sound delete impressions

I had ASD coded off yesterday. Currently have stock exhaust (though eisenmann is on a UPS truck).

Here's my take:
With windows up the cabin is quieter...noticeably quieter. "2-3% sound increase from ASD" as quoted by someone on the forum (who was quoting someone at BMW) is just false. Especially notice the lack of enhanced sound during WOT at 2-5k RPM.

With windows down, the noise is still very similar but more hollow. The sound seems to be entirely coming from the rear of the car, and the cabin is more muted and empty.

With stock exhaust, I'm a little bit torn on the results. I admit it probably sounds a little "better"/fuller with ASD. BUT...and it's a big but... philosophically, I much prefer the sound of the car making noises mechanically. The notion of artificial sound, created by a synthesizer and pumped through the stereo speakers is so conceptually wrong for a petrol head, that I am very pleased to have ASD off. At least I know the noise emanating from the engine/tailpipes is legitimate. With EDC delete coilovers and ASD delete, the car feels less synthetic, and for me that's a big positive. Understandably not everyone will agree.

I will have the full eisenmann system installed Wednesday and report back again.
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      12-01-2014, 09:18 PM   #2
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Good post. Interested in your impressions post exhaust
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      12-01-2014, 09:25 PM   #3
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With mine still stock, I've noticed what seems to be 2 conflicting frequencies simultaneously most of the time. Like, the real engine note is the base, with an accompanying "harmony", if you will. It's more pronounced while booting it around. Does that even make sense? I can't imagine how that is a natural occurrence.

This is what bugs the shit out of me.

Anyway, I was wondering if you noticed that as well, and, if so, did that go away post-code? Thanks!
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      12-01-2014, 09:30 PM   #4
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I mentioned in another thread that AS would have more of an effect on cabin noise than you would think.

Like the soundaktor on VWs. It was supposed to be minor, just like here, but when disabled it was very noticeable. I'll probably turn mine off once I figure out where I'm going with the exhaust.
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      12-01-2014, 09:35 PM   #5
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Quote:
Originally Posted by smedin
With mine still stock, I've noticed what seems to be 2 conflicting frequencies simultaneously most of the time. Like, the real engine note is the base, with an accompanying "harmony", if you will. It's more pronounced while booting it around. Does that even make sense? I can't imagine how that is a natural occurrence.

This is what bugs the shit out of me.

Anyway, I was wondering if you noticed that as well, and, if so, did that go away post-code? Thanks!
Great description. I agree and yes it's gone after ASD delete

I had ASD in my F10 M5 but it was absolutely unnoticeable to me. I coded my car but left ASD on. In the F8x cars they've cranked up the volume, or perhaps that dissonance is more noticeable. It bugs me too...so now gone
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      12-01-2014, 09:52 PM   #6
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How did you code it? Or who did it for you? I want to do it
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      12-01-2014, 10:19 PM   #7
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Bimmerpost member V12. Look him up. Rich can code remotely and he rocks. PM me if you have trouble contacting him
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      12-01-2014, 10:50 PM   #8
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so guys you are telling that you would have notice the ASD without knowing that from BMW? I am pretty sure that 99,9% of the drivers would NOT recognize induced sound from the speakers ...
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      12-01-2014, 11:26 PM   #9
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Quote:
Originally Posted by LukasAT View Post
so guys you are telling that you would have notice the ASD without knowing that from BMW? I am pretty sure that 99,9% of the drivers would NOT recognize induced sound from the speakers ...
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      12-02-2014, 02:53 AM   #10
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Quote:
Originally Posted by LukasAT View Post
so guys you are telling that you would have notice the ASD without knowing that from BMW? I am pretty sure that 99,9% of the drivers would NOT recognize induced sound from the speakers ...
Sure, if you didn't know it was there... I don't think that is the question. Everyone knows it's there.


Some want to know what it's like without it, and it's being said there is a noticeable difference. In my experience there was with other cars. For those who've turned it off, it might have been a more noticeable difference due to the frequency of the sound. A frequency at which almost everyone hears well at, even those with hearing problems.
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      12-02-2014, 05:41 AM   #11
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I did mine and I'm very happy. Especially because when I would rev it out I occasionally heard speaker rattle. Yes it is quiter in general but when you get on it you hear the engine plenty.

For me, what I have now is awesome and preferable. I have stock exhaust, K&N drop in, charcoal delete and JB4 in stage 2 so my boost is 4-6 psi higher I believe. Now that AS is off, I hear spooling often with windows up. ( haven't had windows down yet) When I start off at normal acceleration you hear spooling more than exhaust.
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      12-02-2014, 05:59 AM   #12
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To clarify, it's not 2-3% increase in volume. It's a small (I believe 3-5%) change in the sound itself according to BMW. They never gave a quote on the VOLUME increase being piped in, which I believe is substantial.

It's funny, the car sounds great driving by from outside and with ASD I think it sounds great inside....but apparently they couldnt get it to sound great inside without ASD.
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      12-02-2014, 06:20 AM   #13
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Quote:
Originally Posted by aculeg87 View Post
I did mine and I'm very happy. Especially because when I would rev it out I occasionally heard speaker rattle. Yes it is quiter in general but when you get on it you hear the engine plenty.
That's not speaker rattle. That's the LATCH system things rattling in the rear deck. It can be fixed with some felt tape.
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      12-02-2014, 06:34 AM   #14
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Quote:
Originally Posted by Vectors2final View Post
I mentioned in another thread that AS would have more of an effect on cabin noise than you would think.

Like the soundaktor on VWs. It was supposed to be minor, just like here, but when disabled it was very noticeable. I'll probably turn mine off once I figure out where I'm going with the exhaust.
How is it possible to be more quiet then when in sport??
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      12-02-2014, 06:39 AM   #15
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How about you code it out and report back?

Maybe the OP can shed more light?
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      12-02-2014, 06:48 AM   #16
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hmmm I also have the Eisn full system coming and thought about how the AS would be influenced by the eisn but figured I would just leave the AS on and see what it sounds like. Since I am still waiting for my Eisn (black series) to get shipped ill get to hear your feedback OP before I make the trek down to EAS to have it installed.

Def report back once you install it tomorrow if you can on the AS etc.. it would be much appreciated!
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      12-02-2014, 07:37 AM   #17
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Quote:
Originally Posted by Hoopumpers View Post
Bimmerpost member V12. Look him up. Rich can code remotely and he rocks. PM me if you have trouble contacting him
I am interested in this too, how is it done remotely?
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      12-02-2014, 07:38 AM   #18
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Quote:
Originally Posted by Racer20 View Post
That's not speaker rattle. That's the LATCH system things rattling in the rear deck. It can be fixed with some felt tape.
Really? I'll look into it, but I was noticing this particular distortion under high revs. I heard the same sound in my F10 M5 until I disabled the AS
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      12-02-2014, 07:42 AM   #19
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How difficult is it to code it out? How is it done? Thanks
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      12-02-2014, 01:48 PM   #20
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Quote:
Originally Posted by shortseller
Quote:
Originally Posted by Hoopumpers View Post
Bimmerpost member V12. Look him up. Rich can code remotely and he rocks. PM me if you have trouble contacting him
I am interested in this too, how is it done remotely?
He mails you a cable. You have a windows laptop (or win vm if on a Mac). You choose from the list of options that can be coded (quite a lot of cool stuff). Rich does the rest via remote control on your laptop. Great guy and quality work. He has coded a lot of bimmerpost member cars.
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      12-02-2014, 02:16 PM   #21
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Quote:
Originally Posted by LukasAT View Post
so guys you are telling that you would have notice the ASD without knowing that from BMW? I am pretty sure that 99,9% of the drivers would NOT recognize induced sound from the speakers ...
I am not coding out my ASD, but as soon as I started driving my F80 for the first time, I noticed there is something unnatural to the way the car sounds. Even if BMW didn't tell us about ASD, I am fairly certain I would have suspected something. Just like I suspect there is ASD in our X1 2.8, even though I don't recall BMW ever mention anything about it. I do think the F80 sound pretty good, but there is definitely an artificial feel to the sound. Perhaps a good analogy is acoustic violin vs. electric violin. No matter how great my electric violin sounds, it just never sound as natural and pure as my acoustic violin. Same goes with the sound of the F80.
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      12-02-2014, 02:43 PM   #22
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Perhaps one wouldn't jump to the conclusion that the odd soundscape was not coming from the speakers, but one might still wonder why the car sounds the way it does. The 2 competing frequencies are weird no matter what the source is.

Quote:
Originally Posted by LukasAT View Post
so guys you are telling that you would have notice the ASD without knowing that from BMW? I am pretty sure that 99,9% of the drivers would NOT recognize induced sound from the speakers ...
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