The Deafener and Tinnitus

[bosvit]

I've only had my 130 for about 6 months and I love it.

But at this stage I fear I am going to have to sell it due to my very mild Tinnitus becoming mild Tinnitus and noticeably degrading. I do a lot of 80km/h + driving for work and a fair bit of that time I am towing.

Just wondering has anyone fitted sound proofing successfully to their Deafener?

I have found this product and wondering if it is worth a go?

Landrover Tuning :: Interior Defender - Defender - Default Store View (http://www.landrovertuning.com.au/shop/default/defender/interior?p=2)

Coming back from our last holiday, towing our boat etc I had to wear ear plugs... :thumbsdown::thumbsdown: Not a good look LOL

https://www.aulro.com/afvb/images/imported/2009/10/646.jpg

[Narangga]

Have known a number of people over the years who have had tinnitus, including my late father, so I sympathise with you.

Have you considered noise cancelling headphones in favour of the earplugs?

[bosvit]

Yeah Stuu I have but I would rather get some noise reduction for the rest of the family too. Plus you can hear what is going on around you better eg traffic etc.

[dmdigital]

That Noise Killer sound proofing is supposed to be quite effective. With the UK£ the way it is it may be cheaper to import it direct from England.

I would contact Noisekiller UK (http://www.noisekiller.co.uk) and see how much.

[Narangga]

Yeah Stuu I have but I would rather get some noise reduction for the rest of the family too. Plus you can hear what is going on around you better eg traffic etc.

Fair enough. The site you referred to as well as the one Derek pointed you would seem to be the go.

When I bought the 110 it had carpet underlay with the thick rubber floorcoverings and Land Rover rubber mats on top of that in the front and rear.

The very rear was just the underlay and carpet. On dirt roads the stones hitting the wheel arches caused the most noise so as ell as the sound proffing you could consider painting the wehhl arches with sound deadener too.

Just a thought.

[Offender90]

I've only had my 130 for about 6 months and I love it.

But at this stage I fear I am going to have to sell it due to my very mild Tinnitus becoming mild Tinnitus and noticeably degrading.

I've read about a treatment for tinnitus that offers “considerable” respite in a large percentage of sufferers. A company called Neuromonics won the NSW biotech awards with it. I don't know how much is placebo and how much is real benefit, but it appears to show long term improvement in a large number of cases. You might want to give them a call / find out more. link below:

Neuromonics Tinnitus Treatment - Patient Information (http://au.neuromonics.com/patient/index.aspx?rollover=true)

I've attached a copy of their "clinical trial results" I'm sure its just dressed up marketing, but it describes the treatment procedure in some detail. Now would be a good time to mention I have no affiliation with the company. :D I work in a related field (Acoustics) so these sorts of things cross my desk from time to time.


I do a lot of 80km/h + driving for work and a fair bit of that time I am towing.

Just wondering has anyone fitted sound proofing successfully to their Deafener?

I'm sure its possible and have put up several lengthy (perhaps too lengthy) posts on how to soundproof a Defender in theory. At some stage in the next 12 months I'll hopefully be soundproofing both of mine and will put up a tutorial & cost Vs results discussion.


I have found this product and wondering if it is worth a go?

Landrover Tuning :: Interior Defender - Defender - Default Store View (http://www.landrovertuning.com.au/shop/default/defender/interior?p=2)

Could be, I sure would be expecting serious noise reduction at $1275USD + postage. One way to to compare is to ask them how much it weighs (for postage) - All other things being equal, the heavier the material, the better it works.

Cheers

[Michael2]

Hi bosvit,

Have a look at the Wright Off Road acoustic matting in the http://www.aulro.com/afvb/90-110-130-defender-county/86568-ideas-your-expedition-defender-5.html link.


https://www.aulro.com/afvb/images/imported/2009/10/584.jpg


Other strategies would be to fit quiet highway tyres for general commuting and keep the off road tyres for trips. The highway tyres will reduce a lot of noise and last a long time.

Another idea would be to keep the load in the rear beneath the roof height to reduce wind noise.

Make sure that all the screws in the cab / dash are tight to prevent rattles or panels humming with slight movement.

Check the exhaust and consider a more baffled muffler.

Hopefully you can keep the car you love.

[Hoges]

I have great sympathy for your situation... my wife has suffered from tinnitus for years. She finally got significant relief through listening to special analogue cassette tape recordings on a high fidelity Panasonic Walkman-type player +earbud headphones... The firm was Sound Therapy - Tinnitus Treatment - Tomatis Therapy (http://www.soundtherapyinternational.com)

Noise cancelling headphones can be an excellent interim fix ... there are good quality ones now available for less than $200. Normal conversation is quite audible. Indeed I often use them in the P38 when travelling (alone!) at highway speeds with the sunroof and front windows open .. :p

[Graeme]

I have always found the LT230 TC whines worst at about 80kph on the RRCs & Discos that I've had. When my current D2 was new it didn't seem to have any whine but as it aged and wore, the whine started and has been slowly getting worse, having done 200K. When I replaced the intermediate shaft O-rings I saw that the intermediate shaft was significantly worn on opposite sides/ends where the bearings locate. As I couldn't wait for a new shaft, I ground another locating flat and rotated the shaft 90 degrees which resulted in reduced whine. If the TC is a significant source of irritation, maybe the TC needs overhauling to correct a worn shaft and possibly bearings then restore the required bearing pre-load.

[lardy]

mate sorry i didn't catch where you were firstly i have spoken to sound killer uk mob previously and if you mention AULRO they may sort you out a discount i reckon it's about 350 gbp plus shipping you can get stuff for the engine bay and bonnet cut by a computer so good fit.
paddocks do matting fairly cheap looks landrover for the front cab.
And wurths here in perth i can get the address do a great sound deadener pad to cut and fit in the rear cab section at $70 for 7 pieces i think hope this is helpful

[richard4u2]

i dont think it is the defender that is causing the problem i think it is the motor on that boat , best you sell it , i got $10 in my pocket :D

[bosvit]

i dont think it is the defender that is causing the problem i think it is the motor on that boat , best you sell it , i got $10 in my pocket :D
Thanks mate I will take that into consideration.....:)

Thanks for all your replies guys, especially the info on Tinnitus. Going to the doc next week about it.

Just some more quick info, in Adelaide but moving to Pt Lincoln in about 6 months. 2001 Td5 228,000km, recently had new axles and flanges and the TC was fine.

And I have two sets of tyres for it already, one off road Michelin XZT and some crappy soon to be replace Firestone ASR's.

Most of the noise is coming through the firewall, and up from the gearbox area as you would expect. I have spoken to my mechanic who is very switched on with Land Rovers and basically everything is about as quiet as he can make it without spending ridiculous dollars for only minor improvements. He seems to think I need to spend a fair bit of coin on sound proofing, which I am happy to do if it works, hence asking the question has anyone actually fitted a kit like this or similar?

Once again thanks for all the help and ideas.

Cheers
Brett

[Captain_Rightfoot]

I've often wondered about this. When I worked for Telstra they said the maximum safe exposure was 80db for 8 hours. I'm pretty sure the interior of a defender is well over this.

I've got a db meter app for my iphone. I'll run this when I'm out in the defender this afternoon. I don't think I'm going to like the results.

I've worn noise cancelling headphones in our defender and it does make the interior much quieter. It doesn't help with family bonding though :)

Is there any such thing as electronic noise cancelling for the whole interior of a car? :)

[slug_burner]

I've often wondered about this. When I worked for Telstra they said the maximum safe exposure was 80db for 8 hours. I'm pretty sure the interior of a defender is well over this.

I've got a db meter app for my iphone. I'll run this when I'm out in the defender this afternoon. I don't think I'm going to like the results.

I've worn noise cancelling headphones in our defender and it does make the interior much quieter. It doesn't help with family bonding though :)

Is there any such thing as electronic noise cancelling for the whole interior of a car? :)

Yes there is noise cancelling for the interior of a car using the sound system. I think Lotus had a car a few years ago that came out with such a system.

[Captain_Rightfoot]

I googled it and found some references to a few systems, but none seemed to be commercially available. Hmmmm....

[flagg]

I have some of these:

David Clark H10-13X Headset - MyPilotStore.com (http://www.mypilotstore.com/MyPilotStore/sep/648)

They work austoundingly well. With them on, I can hear the radio as loudly as if they were off, but I can't hear any engine dronning noises. I can still hear other mechanical noises like bearing noises etc.

They are also great when I'm flying :D:D

In all seriousness though, If most of the noise is coming through your firewall:

Have you fitted the tru-fit bonet underlay? Are all your boots and gromets intact? Can you see the road through any seals / lack of seals around the doors or anything? How good are the seals around your front vents? Are they closing properly?

I have an Isuzu 110 and most of the noise comes through the firewall. When invesitgating this I took out the radio and noticed that I could actually see the engine from inside. Several gromets had perished completly.. annoying but it they are cheap to fix and will make a big difference. Most of the noise in a defender should be the wind.

[rar110]

Hi bosvit,

Have a look at the Wright Off Road acoustic matting in the http://www.aulro.com/afvb/90-110-130-defender-county/86568-ideas-your-expedition-defender-5.html link.


https://www.aulro.com/afvb/images/imported/2009/10/584.jpg






This made a noticeable improvement to my Isuzu 110. Also, check the foam under the gearstick boot. I have replaced mine with pieces of noise insulation laminated together which also helped reduce noise entering the cab. My 110 is not quiet but I can now hear the radio.

[Captain_Rightfoot]

I checked yesterday, and with the vents closed, AC off, and kids and wife temporarily silenced (!) my defender is 82 db at 60kph. Given that it's a db meter on an iphone and not calibrated this should be a guide only. I'd imagine it would be close to 90 at 100 but I'll check when I have the opportunity to do those speeds.

[abaddonxi]

I checked yesterday, and with the vents closed, AC off, and kids and wife temporarily silenced (!) my defender is 82 db at 60kph. Given that it's a db meter on an iphone and not calibrated this should be a guide only. I'd imagine it would be close to 90 at 100 but I'll check when I have the opportunity to do those speeds.

http://www.aulro.com/afvb/technical-chatter/87420-isuzu-4bd1-vs-300tdi-sound-check.html

[Offender90]

I've often wondered about this. When I worked for Telstra they said the maximum safe exposure was 80db for 8 hours. I'm pretty sure the interior of a defender is well over this.

The Australian OH&S regulation criteria for noise exposure are 85 dB(A) energy averaged over an 8 hour period (LAeq,8hr), with a 3 dB "trading rule" (i.e. doubling the exposure time, decreases allowable loudness by 3 to 82 dB(A) and and halving it (to 4 hr) increases to 88 dB(A). That said, there is no definitive "safe exposure" limit, as hearing damage can occur at exposures below the OHS regulated limit.


I've got a db meter app for my iphone. I'll run this when I'm out in the defender this afternoon. I don't think I'm going to like the results.

Is there any such thing as electronic noise cancelling for the whole interior of a car? :)

Nope. Waste of time and money. Active noise control is extremely difficult to achieve globally (i.e. throughout the entire car), and even then, the reduction is generally not significant.


Yes there is noise cancelling for the interior of a car using the sound system. I think Lotus had a car a few years ago that came out with such a system.

It was probably a marketing gimmick - I'm very doubtful as to how well it worked.


I checked yesterday, and with the vents closed, AC off, and kids and wife temporarily silenced (!) my defender is 82 db at 60kph. Given that it's a db meter on an iphone and not calibrated this should be a guide only. I'd imagine it would be close to 90 at 100 but I'll check when I have the opportunity to do those speeds.

The'd probably be good for +/- 3 dB(A) (at best). Car noise will increase approximately 1 dB(A) for an increase of 10km/h over the range of 60km/h to 100km/h, so you'd be looking at around 86 dB(A) at 100km/h.

Cheers

Bojan

[slug_burner]

I wrote to Wright Off Road which supply the mats shown in Michael's (Chucaro's had an earlier ref in the expedition post) post above, The following might be helpfull to anyone thinking about buying some of their product.

Thanks for your interest, the cost for the Acoustic Mat System would be £400 GBP inc delivery to you in Melbourne.

Each Polyurethane sheet would cost you £250 inc delivery to you.

The front is the most important.

[lardy]

TR658 Soundproof Kit - Defender 300TDI with R380 Gearbox (http://www.paddockspares.com/pp/DEFENDER/Upholstery_and_Interiors/Soundproof_Kit_-_Defender_300TDI_with_R380_Gearbox.html)

Computer cut sound proofing 65 quid plus shipping at PADDOCKS like i have said before jeez!
do you want me to fit it for ya lol

[Albert]

The two big improvments on mine were the under bonnet matting & I took off the cardboard cover behind the pedals and put some soundproofing there + passenger side. Huge difference. Also saw another with door seals around the bonnet, he said it worked well.

[slug_burner]

TR658 Soundproof Kit - Defender 300TDI with R380 Gearbox (http://www.paddockspares.com/pp/DEFENDER/Upholstery_and_Interiors/Soundproof_Kit_-_Defender_300TDI_with_R380_Gearbox.html)

Computer cut sound proofing 65 quid plus shipping at PADDOCKS like i have said before jeez!
do you want me to fit it for ya lol

OK, OK.

They haven't got the nice photo gallery, but for 330 quid I think I can put up with that:cool:

[Michael2]

TR658 Soundproof Kit - Defender 300TDI with R380 Gearbox (http://www.paddockspares.com/pp/DEFENDER/Upholstery_and_Interiors/Soundproof_Kit_-_Defender_300TDI_with_R380_Gearbox.html)

Computer cut sound proofing 65 quid plus shipping at PADDOCKS like i have said before jeez!
do you want me to fit it for ya lol

what's it made of? (ie: carpet, foam etc)

[Offender90]

what's it made of? (ie: carpet, foam etc)

I will be making my own one of these days... its on a long list of things to do for both my landies. I'll be using Pyrotek Wavebar (barium loadad vinyl), probably 6kg/sqm, but I haven't decided yet. Should cost around $200 for a 5m x 1350mm roll.

Getting the pattern right will be a slow and painful process, - so if anyone has patterns, this is the place to share them - they would be much appreciated.

If anyone does decide to use the same material, I would recommend getting it with foil backing, - foil backed ones can be joined with tape making for a much easier installation.

Last time I checked, the cheapest supplier in Perth was Ian's Industrial Supplies in Canning vale (08 9456 4777 or 0419 049 198). No affiliation with the seller.

Cheers

Bojan

[abaddonxi]

Bojan, I made up a set of patterns for my 120", bonnet, footwells, gearbox tunnel.

Six, maybe seven years ago, and I think I chucked them out when I moved. I used large cardboard or taped together newspaper, wasn't hard and didn't take long. From what I recall I only had to do minimal trimming fo the insulation pieces.