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Don't use the "Measure"-option, there the program is using an internal sine sweep to determine the frequency response of the speaker in a room. Instead, use the real time analyzer or RTA-option on the top menu. Select settings you want and press the rec-button. After recording you can save the...

I used Room EQ Wizard and I think those were also measured by using that. https://www.roomeqwizard.com/ It's been developed to measure home theater and audio equipment but works also great on car noise measurements. Of course you'll need a mic too. I'm using Umik-1 -microphone, which is not a...

On second thought, this doesn't change the truth that you observed clearly the reduction in noise when I didn't 🤔

This is interesting. Have you decided where to attach this damper? On wheel well? I noticed, when I looked the most recent graphs I've measured, that at 100km/h the difference is much bigger between before and after than at 80km/h. Maybe this is one of the reasons why your 125km/h difference is...

👍 That's true. This is unfortunate and Tesla is not alone with this. I noticed, when I was searching sound deadening information that a lot of manufacturers have not paid too much attention to make their cars more quiet. Especially newer models. I believe your measurements are correct and they...

Ok, this area I also covered in my car without too big a difference. But did you repeat this (small image on top right corner=outerwheel well) also rear? -> This I agree. But not this 😆 Or if they have the best engineers, their ideas on noise deadening are ignored. This is my case...

@azeteg you mentioned: "I think that the main difference comes from the use of multiple layers inside the rear wheel wells. " Referring your photo, this means probably that you put the damping material between the plastic wheel well trim and chassis OUTSIDE the car? I somehow got confused and...

And my wheels are 19" with 224cm circumference.

😄 During the measurements I had Hankook Evo summer tires, which came with car (MY-22). I think that my installation should have bigger effect on noise level at least on higher frequencies (between 500-2000Hz) which are bothering me the most. As mentioned before the total mass/sq.meter of...

Thank you for your report, excellent results! I'm impressed how big differences there are between the stock and treated case. I have done similar project which I have reported on this thread (from message #36 on): MYLR7 Sound Deadening I think I have even done heavier damping with 2mm vibration...

I don't think heating is a good solution if you want to keep the tube pliable also in use. It'll be rigid again when cooled down. I also noticed that I had bought the wrong size tubing: the inner diameter was 8mm not the outer. I bought a new, softer one with the right measures and installed it...

Quick update: I installed vinyl tubing and I measured 5-10dB reduction in noise at 20-35Hz area. I could also hear the change. Awesome top!

I was mostly following the instructions from this company, which makes sound deadening treatments, audio installation etc. The material they use in wheel wells (in addition to butyl sheets) is not the same they use in door (dry side), even though it looks like it. This foam won't absorb water...

Including also the doors improve the quality of the sound system so that's another reason for door deadening. The exterior wheel wells is surely my next step but let's see when I have time. Butyl is commonly used in exterior of wheel wells here in Finland where the temperatures vary between...

Here are the measurements before and after. I used Room EQ Wizard + UMIK-1 + laptop for measurements. The microphone is calibrated but I still checked the levels by playing pink noise through my Tesla sound system (volume level was selected the same in both cases). This is not necessary, but I...

I chose to use this old thread since my case is close enough. Also my plan was to reduce annoying road/tire noise in my MYLR -22 cabin. Step one was to concentrate on trunk, rear wheel wells (inside) and doors. For the trunk I used 3mm butyl-aluminum -sheets on bottom and 8mm multi layer...