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Turning off fake engine and exhaust sound in newer models

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9 replies to this topic

#1
d-pak

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I was kinda beating myself up for not doing this earlier on my Q50 which has sport exhausts and has the Bose ANC/ASC feature (Active Noise Cancellation, Active Sport Cabin). It made a huge difference in terms of reducing cabin drone and actually hearing what the exhaust truly sound like after 3 years of listening to fake noise garbage. The overall music audio was better too since the low-frequency was not being drowned out.

 

The principle is simple. There is a firmware with the pre-recorded engine and exhaust sounds loaded into the bose system for various RPM. When in ANC mode (comfort, etc) it uses the 2 mics in the cabin to essentially cancel the engine and exhaust sounds ...kind of how noise canceling headphone work. In the ASC mode (when in sport) it pumps fake amplified noises into the cabin when accelerating. The challenge is that if you change the mid-pipe or exhaust or modify the engine and the harmonics are off, then i's just pumping low frequency garbage into the cabin.

 

Since I don't have a later model GT-R, I had to get help from NickTO to obatin the ESM so I could share this, since it doesnt seem to have been discussed here prior or I just missed it.

 

Steps:

1. Turn ignition ON

2. Turn audio system off

3. While holding "MENU" button turn volume knob 40 at least 40-clicks in any direction.

4. Select "Confirmation/Adjustment" mode

5. Scroll to the "ANC/ASC" setting and select it

6. You have to do a "Connection Diagnosis" first, before settings can be changed. It will show you the name of the firmware I talked about above. go back to ANC/ASC menu.

7. If you want to hear the annoying sound pumped in click on the  "Active Test". It's so low frequency that my phone couldn't even record it.

8. Click on "Setting" and turn each one off. - ANC and ASC

 

I am not sure the GT-R will allow for each one to be turned off independently, the Q50 did. I noticed good results from ASC off. No more fake sound. The idea is that ANC cancels out normal road engine noise, but with different tires, tune etc, I actually ended up turning ANC off too and my overall music audio sounded better. I could also hear the engine rev.which I like.

 

9. Back out of the setting and the system will reboot, takes 1+ minute for whatever reason.

 

I'd be curious to hear about the results from GT-R owners people trying this out, even those with stock might actually find this better. I think this was introduced in US16 models onward? Getting rid of fake drone was the best.


Edited by d-pak, 15 May 2018 - 09:33 AM.

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#2
Crissy

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I was kinda beating myself up for not doing this earlier on my Q50 which has sport exhausts and has the Bose ANC/ASC feature (Active Noise Cancellation, Active Sport Cabin). It made a huge difference in terms of reducing cabin drone and actually hearing what the exhaust truly sound like after 3 years of listening to fake noise garbage. The overall music audio was better too since the low-frequency was not being drowned out.

The principle is simple. There is a firmware with the pre-recorded engine and exhaust sounds loaded into the bose system for various RPM. When in ANC mode (comfort, etc) it uses the 2 mics in the cabin to essentially cancel the engine and exhaust sounds ...kind of how noise canceling headphone work. In the ASC mode (when in sport) it pumps fake amplified noises into the cabin when accelerating. The challenge is that if you change the mid-pipe or exhaust or modify the engine and the harmonics are off, then i's just pumping low frequency garbage into the cabin.

Since I don't have a later model GT-R, I had to get help from NickTO to obatin the ESM so I could share this, since it doesnt seem to have been discussed here prior or I just missed it.

Steps:
1. Turn ignition ON
2. Turn audio system off
3. While holding "MENU" button turn volume knob 40 at least 40-clicks in any direction.
4. Select "Confirmation/Adjustment" mode
5. Scroll to the "ANC/ASC" setting and select it
6. You have to do a "Connection Diagnosis" first, before settings can be changed. It will show you the name of the firmware I talked about above. go back to ANC/ASC menu.
7. If you want to hear the annoying sound pumped in click on the "Active Test". It's so low frequency that my phone couldn't even record it.
8. Click on "Setting" and turn each one off. - ANC and ASC

I am not sure the GT-R will allow for each one to be turned off independently, the Q50 did. I noticed good results from ASC off. No more fake sound. The idea is that ANC cancels out normal road engine noise, but with different tires, tune etc, I actually ended up turning ANC off too and my overall music audio sounded better. I could also hear the engine rev.which I like.

9. Back out of the setting and the system will reboot, takes 1+ minute for whatever reason.

I'd be curious to hear about the results from GT-R owners people trying this out, even those with stock might actually find this better. I think this was introduced in US16 models onward? Getting rid of fake drone was the best.


I have a ‘17 Q60, I suppose I should look into this. I feel silly not knowing anything about this.
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#3
gutdoc

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Good reason to buy the “pure”?
No full leather interior though

#4
Falcon900

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What model year GTR's have this fake engine noise?


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#5
Tim

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What model year GTR's have this fake engine noise?


Same question???
post-273-0-31146100-1438786356.jpg

#6
MCGTRNISMO

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Same question???

2017+

 

  its less of like a fake engine sound than an added tone if that makes sense.  I say that because it doesnt sound like anything the engine or exhaust would naturally produce . Its like an overlaid  hum or drone on top of the natural  more muted sounds we are used to the car making.   the sound itself in person isnt bad actually and I would say it gives the kinda bland sounding GTR a little personality except for the fact that its not something the actual engine is producing  which defeats the whole point. you can make a GTR very loud and aggressive with the full catless set ups as we all know  and you can have the built cars that sound like motor boats  but the VR38 itself pretty much doesnt have much flavor or a distinct note to it to it so I think that is what they were trying to achieve.

 

 

you can hear  the "fake" sound over an over here pretty well its that hum on top of what you are used to the car sounding like

 


Edited by MCGTRNISMO, 05 June 2018 - 11:14 PM.

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#7
droptopp

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Lol I did this in my wife’s X5M as it’s a tune option with dash on/off and she asked for it back on. Hhahhaha annoys me but whatever

Edited by droptopp, 06 June 2018 - 01:24 PM.

GTX3582R built and tuned by STM, AMS 4.1, Omega billet crank, Alpha Cams, STM DP, MP, 4 STM Titanium custom exhaust, STM Race FMIC 22x18x4.5, full 3" piping, ID 2000, Sheptrans OneK drop gears, DS axles, E85, Advan GT 10/12 285/315 R888 / MT ET 18x10/12 TE37 Saga MT ET SS 275/245.
Heartbreaker Mustang 1186 E70 low boost. Dynojet 1350 +/- 60-130 3.5 seconds. 100-150 3.4 seconds.

#8
droptopp

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We all got a friend that does this :
https://youtu.be/A5w86IiXe9s
  • gtrfeh likes this
GTX3582R built and tuned by STM, AMS 4.1, Omega billet crank, Alpha Cams, STM DP, MP, 4 STM Titanium custom exhaust, STM Race FMIC 22x18x4.5, full 3" piping, ID 2000, Sheptrans OneK drop gears, DS axles, E85, Advan GT 10/12 285/315 R888 / MT ET 18x10/12 TE37 Saga MT ET SS 275/245.
Heartbreaker Mustang 1186 E70 low boost. Dynojet 1350 +/- 60-130 3.5 seconds. 100-150 3.4 seconds.

#9
Tim

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F that! I’ve seriously thought about taking my stereo out because the engine sounds so good! Especially at about 8500rpm
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post-273-0-31146100-1438786356.jpg

#10
Falcon900

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I have a 16' so I don't have this issue, but I am wondering how the car sounds if you put catless downpipes on a 17'? Does the cabin nose sound worse with this fake noise added in?


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