In car noise correction for tyre roar
Discussion
hermes said:
Anyone done this?
My 997 C4S is shocking for tyre roar, especially on the M25 for some reason.
I’m familiar with noise cancellation/correction tech for headphones, home cinema etc, which got me wondering why isn’t something available off the shelf for car cabins now.
Or is it?
The M25 has a lot of concrete sections that are much louder, The M1 was the same last time I drove it. You could try a tyre with a lower dB rating or a higher profile wheel.My 997 C4S is shocking for tyre roar, especially on the M25 for some reason.
I’m familiar with noise cancellation/correction tech for headphones, home cinema etc, which got me wondering why isn’t something available off the shelf for car cabins now.
Or is it?
Lotus developed the anti-noise technology but I have never seen a retrofit solution as it needs a complex integration into the car's systems to be effective
http://www.halosonic.co.uk/
https://www.silentium.com/automotive-case-study-2/
craigjm said:
Just drown your car in dynomat if you have an issue with road noise or change the tyres.
This, Silent Coat is the same stuff but cheaper and makes quite a difference, you strip out the seats and door skins and apply the stuff all over. I did inside my doors recently to improve sound quality and even just doing the doors helpsThen tyres
The m25 is crap in places though
Ford fit active noise cancellation to the Mondeo Vignale. It’s nowhere near as effective as a decent set of noise cancelling headphones.
To be really effective you need to deliver the cancelling sound waves as close and direct to the ear as possible, otherwise they can be reflected off surfaces and cease to cancel noise.
I occasionally drive vans for work - a Berlingo with no bulkhead which is terribly noisy and noise cancelling headphones are a godsend and make a huge difference to a long journey.
To be really effective you need to deliver the cancelling sound waves as close and direct to the ear as possible, otherwise they can be reflected off surfaces and cease to cancel noise.
I occasionally drive vans for work - a Berlingo with no bulkhead which is terribly noisy and noise cancelling headphones are a godsend and make a huge difference to a long journey.
Dynamat/Silent Coat will help, but MLV or Tecsound will be much better.
You need mass to block sound, and CLD is actually quite light.
MLV is "Mass Loaded Vinyl" and "CLD" is Constrained Layed Dampening "ie dynamat/Silent Coat.
To make it really work, you need a layer that is as close to seamless as possible
You need mass to block sound, and CLD is actually quite light.
MLV is "Mass Loaded Vinyl" and "CLD" is Constrained Layed Dampening "ie dynamat/Silent Coat.
To make it really work, you need a layer that is as close to seamless as possible
This is a hard 1 basically the only route open to you is dynamat
I offer audio upgrades to Porsche and Dynamat is a crucial element-- yes it does dampen the noise
To get someway towards what you I think you are after would be time very consuming in labour
and require an extensive amount of Dynamat therefore an expensive job
You would need to remove the complete interior carpets seats plastic trim from rear window to the front bulkhead.
and possibly the rear wheel arches externally
Speak to anyone who has carried out this exercise on a LR Defender I have done many it works extremely well
But these are easy to work on
The Porsche is a far more crammed interior
Maybe a second car might be a easier option
I offer audio upgrades to Porsche and Dynamat is a crucial element-- yes it does dampen the noise
To get someway towards what you I think you are after would be time very consuming in labour
and require an extensive amount of Dynamat therefore an expensive job
You would need to remove the complete interior carpets seats plastic trim from rear window to the front bulkhead.
and possibly the rear wheel arches externally
Speak to anyone who has carried out this exercise on a LR Defender I have done many it works extremely well
But these are easy to work on
The Porsche is a far more crammed interior
Maybe a second car might be a easier option
David Beer said:
quinny100 said:
Ford fit active noise cancellation to the Mondeo Vignale. It’s nowhere near as effective as a decent set of noise cancelling headphones.
To be really effective you need to deliver the cancelling sound waves as close and direct to the ear as possible, otherwise they can be reflected off surfaces and cease to cancel noise.
I occasionally drive vans for work - a Berlingo with no bulkhead which is terribly noisy and noise cancelling headphones are a godsend and make a huge difference to a long journey.
Of course it is illegal to wear headphones.To be really effective you need to deliver the cancelling sound waves as close and direct to the ear as possible, otherwise they can be reflected off surfaces and cease to cancel noise.
I occasionally drive vans for work - a Berlingo with no bulkhead which is terribly noisy and noise cancelling headphones are a godsend and make a huge difference to a long journey.
Lotus, Southampton university and Clarion developed noise cancelling. The demo cars were really impressive.
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