Sound Proofing

Figtuna

I installed a Pioneer head unit in my Nismo with the blue tooth option but I have a challenge using my cell phone. The interior noise in the car is so loud that people that talk to me cannot hear my conversation. I already tried adjusting the "echo" canceling option on the head unit but that didn't work. I've also tried repositioning the mic with very little to no improvement. Anyone out there had any luck resolving it? Has anyone installed sound proofing insulation and does it really work? How difficult is the installation? Help me out guys!

Trips

Moved to right section

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007MI6

I have the stock Bose system and have the same issue with people not being able to hear me, unless the roads are really smooth. I have seen a few threads on here about installing soon deadening material. Audiofanatic will probably chime in on that, just wanted to let you know that it happens to the stock system too. If that does any good.

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2011 370Z Touring+Sport Coupe
BLK Int||M6||Navigation||Illuminated Door Sills||GoMiniGo LPB

TreeSemdyZee

Does your HU have any kind of noise canceling in the settings. Or microphone boost? My Kenwood has quite a few different ones like that. I don't have a clue what it sounds like on the other end, but I've never had anybody screaming "WHAT?" at me.

And yes, the sound-proofing does help a lot. I did my entire rear deck and front doors. It's quite a bit quieter.

bigaudiofanat

Where did you locate your mic OP?

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MacCool

I have the stock bluetooth unit in my 2011. I use it not only for cell phone communication, but also for interaction with my iPhone's "intelligent assistant" (Siri) and I rarely have any kind of issue with clarity of communication.

If I were having such trouble, the first thing I'd do would be to pull all the stuff out of the hatch floor and line it and the outside of the wheel wells with some 1/2 inch foam.

DCNISMO

I opened up my side panels to put rear speakers in the Nismo this weekend, there is really nothing there to absorb the road noise coming off the tires. I'm thinking of adding something in there to absorb some of the noise. Looks to be an easy job. BTW, you can add the rear speakers without taking off all of the hatch panels. tight fit to work in, but doable, and you will cut your hands and wrist up if you don't use a long sleeve shirt.

Red__Zed

Dynamat your trunk and wheel wells-- there is very little soundproofing in here to start off with, and most of the noise you hear comes from here

Throw some in the doors if you have leftovers/feel the need to, should help a bit.

007MI6

You must have better roads in the midwest, because I have the same setup, and use it for the same situations. But Siri and anyone I am talking to always complain about road noise. Unless, I am going under 45mph or am on a very smooth road. Going to look into Dynomatting this thing soon.

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2011 370Z Touring+Sport Coupe
BLK Int||M6||Navigation||Illuminated Door Sills||GoMiniGo LPB

MacCool

It's rural Minnesota. Roads around here take a freeze-thaw-freeze-thaw beating and MNDOT over the last few years has taken to aggregate overlays as they resurface, which does increase the road noise. For me, the bluetooth/cell phone hasn't been any more of a problem in my Z than in my wife's Murano.

007MI6

Huh......Maybe you just speak louder than I do.

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2011 370Z Touring+Sport Coupe
BLK Int||M6||Navigation||Illuminated Door Sills||GoMiniGo LPB

MacCool

Dunno. I was pleased by the sound quality on cell phone calls, but when I got the 4S I was especially pleased that Siri is able to coherently transcribe text and email message as well as respond appropriately to commands.

My guess is that insulating the rear deck and outside of the wheel wells will make a big difference. Another thing to do might be spraying some rubberized undercoating inside the rear wheel wells under the liner.

Red__Zed

this was the one thing I saw make a huge difference for some people. If there is a lot of loose "crap" on the roads you drive, a rubberized coating on the wheel liner is huge, plus it helps with the annoying low speed rock plinking.



FWIW, I never needed any coating on my car, and 95% of the time I was able to make calls without complaint from the listening party.

Figtuna

Thank you for all the postings fellas, I got a lot of good feedback here and some excellent suggestions. Looks like I'll have to resort to using sound insulating material in the rear wheel wells, doors and the cargo area. While I got ya here...I'm have a full set of tires installed this weekend. I'm switching to the Continental Extreme Contacts DW and hoping that might also quite things down to a dull roar.
I remember the tire roar that my 2004 350z had when I got to the end of the tread...it was deafening. I'm hope that the skins will help remedy most of the noise but I'll definitely be installing the insulation material regardless.

Thanks again
Steve

eastwest2300

Thats what I would do too, Good answer Red!

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