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  #25  
Old 09-02-2016, 10:21 PM
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Re: My Alpine system ROCKS Here's why!!

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Originally Posted by mswlogo View Post
I beleive you are correct that it's the same head unit and just different amps and speakers for the HK setup. But Im a little confused where active noise cancelation is done and I assume that "processing" is done by HK. But I think it's in the head unit.
I just looked into it. It is not what I thought it was, but I hope it does what it is supposed to.

"The Active Noise Cancellation system is designed to address the change in exhaust noise whenever the vehicle is operating in Fuel Economy Mode (ECO) or 4 cylinder mode."

http://www.wk2jeeps.com/wk2_active_noise_cancellation.htm

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  #26  
Old 09-02-2016, 11:51 PM
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Re: My Alpine system ROCKS Here's why!!

Quote:
Originally Posted by bill_de View Post
I just looked into it. It is not what I thought it was, but I hope it does what it is supposed to.

"The Active Noise Cancellation system is designed to address the change in exhaust noise whenever the vehicle is operating in Fuel Economy Mode (ECO) or 4 cylinder mode."

http://www.wk2jeeps.com/wk2_active_noise_cancellation.htm

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A lot of folks have been questioning that description for years. If it's tuned to the MDS exhaust noise at some RPM why would it even need Mics !!! It would just be pre-canned cancelation signal based on RPM.

There are other descriptions by Jeep that talk about road noise cancelation.

Does this give you the impression of MDS Exhaust Noise cancelation?



The Mics imply it's dynamic/adaptive of some sort like most Noise Cancelation Systems.
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  #27  
Old 09-03-2016, 12:03 AM
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Re: My Alpine system ROCKS Here's why!!

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Originally Posted by mswlogo View Post
A lot of folks have been questioning that description for years. If it's tuned to the MDS exhaust noise at some RPM why would it even need Mics !!! It would just be pre-canned cancelation signal based on RPM.

There are other descriptions by Jeep that talk about road noise cancelation.

Does this give you the impression of MDS Exhaust Noise cancelation?

The Mics imply it's dynamic/adaptive of some sort like most Noise Cancelation Systems.
I believe this makes sense. The noise from the MDS would vary based on more than RPMs. ECO mode also causes noise by straining the engine by upshifting early and downshifting late.

The only thing I remember reading about road noise had to do with acoustic glass. If you have any other links regarding this, please point me toward them.

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  #28  
Old 09-03-2016, 12:08 AM
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Re: My Alpine system ROCKS Here's why!!

Quote:
Originally Posted by bill_de View Post
I believe this makes sense. The noise from the MDS would vary based on more than RPMs. ECO mode also causes noise by straining the engine by upshifting early and downshifting late.

The only thing I remember reading about road noise had to do with acoustic glass. If you have any other links regarding this, please point me toward them.

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Why in the Video do they "Change" the environment to stress that it dynamically is listening to the environment. The Noise the Jeep generates would be the same no matter where it is. The Video is about Active Noise Cancelation (not acoustic glass).

Quote "Turn any Street (a Quiet one or a Noisy one) into a Symphony with Active Noise Cancelation".

Now that is the Marketing Group that put that together and might technically not know what it actually does.
But that Video implies it adjusts to the environment, as do most Active Noise Cancelation systems.
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  #29  
Old 09-03-2016, 12:31 AM
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Re: My Alpine system ROCKS Here's why!!

Quote:
Originally Posted by mswlogo View Post
Why in the Video do they "Change" the environment to stress that it dynamically is listening to the environment. The Noise the Jeep generates would be the same no matter where it is. The Video is about Active Noise Cancelation (not acoustic glass).

Quote "Turn any Street (a Quiet one or a Noisy one) into a Symphony with Active Noise Cancelation".

Now that is the Marketing Group that put that together and might technically not know what it actually does.
But that Video implies it adjusts to the environment, as do most Active Noise Cancelation systems.
I am never sure what or why Jeep does or says things. My build sheet says "Bright License Plate Brow" and "Overland-Summit Badge".

What I noticed in the video was that the construction noise was reduced as she closed the window.

I do know that with my Overland the only noise that really bothered me was from the MDS. So I hope they did deal with that.

I did take a look at the HK site, and it would indicate that it deals with road noise. But they also talk about the 4 microphones and 4 other things (I forget the name) mounted in the chassis that actually deal with the noise.

I'm tired, my brain is shutting down ... Good Night!

We'll look into this more tomorrow.

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  #30  
Old 09-03-2016, 07:58 AM
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Re: My Alpine system ROCKS Here's why!!

Quote:
Originally Posted by bill_de View Post
I am never sure what or why Jeep does or says things. My build sheet says "Bright License Plate Brow" and "Overland-Summit Badge".

What I noticed in the video was that the construction noise was reduced as she closed the window.

I do know that with my Overland the only noise that really bothered me was from the MDS. So I hope they did deal with that.

I did take a look at the HK site, and it would indicate that it deals with road noise. But they also talk about the 4 microphones and 4 other things (I forget the name) mounted in the chassis that actually deal with the noise.

I'm tired, my brain is shutting down ... Good Night!

We'll look into this more tomorrow.

--
Active Noise Cancelation can't run with windows open obviously.
There might be some unique challenges with the noise generated by MDS, exhaust that they also addressed in addition to typical noise cancelation.

But now that I think about it. Wonder why the Mics are not on the outside.

I read all the Harmon articles too. Some other cool stuff they do on Range Rovers.

In any event the car is very quiet. I'm sure there will be plenty of V8 Summits coming on line to ask opinion on MDS noise soon.

I also plan to poke and prod the Active Noise Cancelation to better understand what the heck it is doing.
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  #31  
Old 09-03-2016, 08:13 AM
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Re: My Alpine system ROCKS Here's why!!

Quote:
Originally Posted by mswlogo View Post
I'm sure there will be plenty of V8 Summits coming on line to ask opinion on MDS noise soon.
If they keep moving mine along I should be able to judge it for myself pretty soon. Tracking shows Estimated Delivery "09/11/2016 - 09/17/2016".

Please post links to any good info you find. As you know it is kind of difficult to nail anything down.

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  #32  
Old 09-21-2016, 12:33 PM
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Re: My Alpine system ROCKS Here's why!!

Quote:
Originally Posted by bill_de View Post
If they keep moving mine along I should be able to judge it for myself pretty soon. Tracking shows Estimated Delivery "09/11/2016 - 09/17/2016".

Please post links to any good info you find. As you know it is kind of difficult to nail anything down.

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And...?
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  #33  
Old 09-21-2016, 12:48 PM
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Re: My Alpine system ROCKS Here's why!!

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Originally Posted by Roger Ramjet View Post
And...?
After just over a week I am very happy with the sound. I listen mostly to an HD radio station and sometimes from a USB. I play music pretty loud, according to others. I punched it up a few times to where it was loud for me. Everything was crisp and clear.

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  #34  
Old 09-22-2016, 12:43 PM
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Re: My Alpine system ROCKS Here's why!!

Quote:
Originally Posted by bill_de View Post
After just over a week I am very happy with the sound. I listen mostly to an HD radio station and sometimes from a USB. I play music pretty loud, according to others. I punched it up a few times to where it was loud for me. Everything was crisp and clear.

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  #35  
Old 09-22-2016, 01:04 PM
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Re: My Alpine system ROCKS Here's why!!

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Originally Posted by mswlogo View Post
Make sure you try enabling "Surround" it is Off by default.
Did that first thing. I had read that before, I believe in one of your posts.

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