How sound treatment affects buzzes and rattles (RTA, distortion, frequency response)

[@ResoNixSoundSolutions]

I have been saying this for years, and have wanted to make this exact video for some time now, but time has been too limited. The highest contributing factor to distortion in a car audio system is the car itself. People have obviously called me biased, but the proof is in the data. Thank you for doing this. To the people: Stop spending money upgrading amplifiers, speakers, sources, etc etc. Your dollar goes orders of magnitude further on sound deadening to the point where its laughable to spend money on other upgrades when 99% of installs are lacking in the sound treatment department.

[@RAW-CAt]

Wow, really appreciate the donation, that means a lot. Thank you.

[@ddragicCPA]

I'm surprised there aren't more videos like this done by CLD manufacturers.... nice work! Thank you for continuing to produce the most relevant and useful videos. I look forward to all of them more than any other video series in the industry.

[@ResoNixSoundSolutions]

I have wanted to do this exact video for some time now. The problem is, time. I just dont have enough of it. I really wish the days were longer lol

[@ddragicCPA]

@@ResoNixSoundSolutions If I had more time my installation would be done! Kids, wife, and work have to come first unfortunately so I totally understand. Kudos for donating to Raw-Cat and at the same time shout out to you for your current promotion to help a car audio member in need. The sincerity of that is not going unnoticed and although I just put in an order earlier this month I think I might have make another to support the cause... Cheers!

[@chokboywonda]

I must say this is a real useful experiment and I'm suremany people will be checking this out for a long time moving forward and using it for reference. 👍 It's the first time I've paid anyone something on KZbin so have an xmas drink

[@RAW-CAt]

Really appreciate, thanks☺️

[@chokboywonda]

Thanks

[@xTinBenderX]

Enjoy your holidays and hope your family feels better.

[@Mark_5150]

Thank you for all the time and effort to do this experiment!

[@dieguerrero]

Best car audio video ever!!!! You are a blessing to car audio enthusiasts!!! Merry Christmas!!

[@LeoEskelinen]

Just an impressive amount of dedication and generosity. Your work helps the community

[@johnd5542]

Just as most of us would suspect, but its awesome to see the data. Great job.

[@CarAcoustics]

The distortion comparison is crazy. Great job!

[@ResoNixSoundSolutions]

So looks like I was onto something when I have been telling people that sound deadening will reduce distortion more than anything else you can do in the system.... lol :)

[@customspeakerpods5078]

Very well done and put together. Thank you for the information!

[@davidallison976]

We knew we would see the difference, but it’s nice to see the actual results. Sure appreciate all the work you do! Nick should sponsor you to test his product against others? Resonix is expensive, but would love to see if it’s worth it. You do such a great job comparing products!! Thanks!

[@JeyDeeSweden]

Simply Excellent measurement and build-work that very clearly visualises the massive differences we can hear before/after treatment. 🙂👍 This also in part explains why all OEM- stereos in cars sounds like boring, cheap crap.

[@JasonWW2000]

I've heard some very impressive sounding stock systems. Oem's are clearly putting DSPs to work.

[@wackawacka12345]

I am surprised how effective the sound treatment in your door panel was, as your driver is barely playing those high frequencies. It might have 16cm. This result makes me very confident in the sense of treating my panels even I have only a 10cm midrange speaker sitting inside, which will probably play 190-1000Hz

[@chloeleedow7250]

Merry Christmas to your and your little family mate. Have a safe one and hope you all feel better soon.

[@robinfahlgren296]

verry good video. this fiilled in the gaps in my knowledge.

[@JasonWW2000]

Man, you sure have a mastery of REW that I wish I had. I don't know how to do distortion graphs or waterfall plots or any of that advanced stuff. I mainly just use the RTA and can compare the plots. Lol

[@jesse-dg8yx]

I'm watching this at 4:35am Christmas day hahaha

[@rajasekhar9840]

Excellent objective comparision, Car Manufacturers should do this test method of running the frequency range in speaker and find out buzz and rattles

[@CrystalClearSQL]

Super interesting, wildly informative. Well done.

[@Newyen6MT]

Amazing videos! I’ll have to look into foam for the inner door panel for some buzzing/vibrating and adding more CLD

[@stefanedstrom9993]

Great video as always! Merry Christmas! :)

[@mapo1313]

frohe Weihnachten und vielen Dank für Deine Arbeit!!! sehr interessant, dass die OEM Speaker eigentlich ok sind - meine Vermutung dazu ist, dass diese Speaker genau für diese Tür Designt wurden. Schöne Feiertage und grüße nach GB.

[@salientram]

Its just the FR that might see okay. We cant see the attack and the decay that are another big factor of the listening expirience.

[@mapo1313]

@ das kann natürlich auch im real life anders sein… wenn allerdings die Lautsprecher mit einem vernünftigen Verstärker betrieben werden - also nicht über das originale Radio zzgl. Der Dämmung… könnte der Sound vom Tiefmitteltöner schon ziemlich erwachsen klingen - für relativ wenig finanziellen Aufwand

[@graphikptz]

Those many peaks on the graph is door piston holes (they play like ports in subwoofer box)

[@el_taiito5492]

Wow ! really interesting thank you for your hard work

[@sqaudiott]

Excellent video👍👍

[@SJE1337]

Wow, that's great information. I wonder if you are comparing mid-bass in the door Vs kick panel. Should you also add block-off plates to the door? Or do you think it won't help the case at all for mid-bass in-doors?

[@kylebetchuk2114]

Is this all off of factory head unit power? Just curious. Have yet to see you add any amplifiers. But I may have missed a video! Thanks Rawcat. Best channel on youtube.

[@RAW-CAt]

Aftermarket HU, not factory☺️

[@kylebetchuk2114]

Oh I see. But still android head unit power. I guess it's kind of irrelevant I just wanted to make sure I didn't miss anything 😂

[@RAW-CAt]

@@kylebetchuk2114 that head unit has 12W of clean power (much cleaner than the speakers) and the tests were performed at 2-5W.

[@kylebetchuk2114]

@@RAW-CAt nice like I said wattage is not relevant. I just dont want to miss a single one of your videos. 😆. Thanks from Canada.

[@almetej29]

thank you. that low laptop battery level made me panic for a sec

[@Randy_G]

Amazing

[@sqaudiott]

I got an idea I don't know if you want to try. Can you do measurements with the door cards off? I would like to see what impact the door cards have on the frequency response.

[@salientram]

If i rrmember correctly, he did it on the insignia or the jazz. U can find in the older videos.

[@sqaudiott]

@ Really? Will look and see

[@AK-qb8tv]

Is it necessary to calibrate the sound card to take measurements? What happens if we don't?

[@RAW-CAt]

Unless you have a very sh***y soundcard, it will not need calibration. Most audio interfaces will have a very flat frequency response.

[@Jake-kb2le]

So aftermarket midbass and stock midbass has same frequency response ? Could somebody explain me whats the point of buying premium speakers then ? Is there something i dont know ?

[@RAW-CAt]

In the range I tested it just so happened that both speakers have almost the same frequency response. For most speakers the biggest difference would be the top end. That is more important for a 2way. The benefit of a quality aftermarket midbass driver is output and distortion at high levels. OEM speakers will crap out if you will push them, a beefy aftermarket driver will play much louder keeping composure. Frequency response is just one of many factors.

[@Jake-kb2le]

@@RAW-CAt So I guess quality wise it matters the most if we do EQ-ing ? Cause we have a lot of power so we can boost without distortions.

[@kai-isms6868]

I’ve left the stock drivers in after sound deadening and it’s very easy to max them out, no power handling at all. Also lots of distortion meaning a muddy sound and poor transient response. Everything sounds cleaner with a lot more impact on a real speaker.

[@Jake-kb2le]

@@kai-isms6868 Yeah I had similar experience. When I was doing my setup first thing I did was changing original speakers to neodymium once, and the difference was huge. I'm surprised with these test results. I don't think sound deadening gave me equal result, but to be fair these door panels didnt resontate too much from the start.

[@marstedt]

Dampening? I always try to keep my interiors dry.

[@Alastasius]

I always try to tell people to get away from the doors. The doors are definitely the worst environment for drivers. Luxury cars tend to do better in this regard, and perhaps they can be much better at it, but even then, I'd prefer another solution. Rather, in the kicks or underseat.

[@JasonWW2000]

I guess it depends on the volume levels. At normal listening levels that a factory system can play at it can be pretty good. Once the volume starts to get higher and higher, though that's when you really start to get all the vibrations and resonances.

[@shanefoss1731]

Absolutely.