Yaris Sedan Deadening and Sound system upgrade

[HareBrained]

Originally Posted by derickveliz2

About your mirror, try to pull it up and do a good inspection of the mirror it self, maybe there is something loos in it, then try to open it up and put some of that Mat you have inside. Take pictures if you can! and let us know how it goes!

Does the Yaris have a double-ball stalk on the mirror (my xB does)? Because people don't adjust the mirror often, it can become fixed in one position. Changing it's position by moving the entire mirror can change the amount of vibration. IOW, rotating the stalk down or up at the base will change to angle and the vibe frequency.

[derickveliz2]

Any body knows how to remove the side rear view mirrors?

D.

[derickveliz2]

I just posted this in another forum, I thought about sharing here:

Lets start with PLDs...
This is how PLDs work in my car, the example is on the Mids in kick area, the idea is you measure from left speaker to left ear, right speaker to right ear, then do the math. Do this in different positions, the smaller the result the better.







Now when I was starting into this hobby I never understood what center image was, I came up with this little exercise at home that you can try it too. This will help you to find that center image every body talks about:

Photo 1: Try to recreate the scene at home, the idea is that you stand right in the middle of the speakers, play a few songs of your choice.

Photo 2: You will feel that there is a 3rd speaker just above your head, like a phantom! that is the center image; most of the time would be the singer.

Give it a try!








Now the problem is when you are not in the center of the speakers (in our cars) so to recreate that phantom (center image) right in the center of your car from the Pilot side we try to work it out mechanically (smaller PLDs) then Time Alignment and Left+Right Equalization. The end result is a 3D-mentional feeling of each track, is like been at a concert or live music at a cafe, where you can tell where is the singer (most of the time in the center AKA center-image) where is the Piano, the guitar, etc; and you can even feel how big or small is the room. When you accomplish this you can say that you have a Solid Sound-Stage. see image below:





D.

[screenprintr]

Don't mean to bump your thread. However, I have a question I believe you can answer.

I read a bunch of the threads but couldn't find the answer. It'll take forever to read them all.

Someone mentioned taking off the C-Pillar Trim/Cover. I need to check the drive side. It has an Airbag. How did you go about this? Is their a Yaris book that covers this?

Thanks, Paul

[sickpuppy1]

It has a airbag label. The actual airbag is in the area right beside your head....a curtain. It blows down in case of side impact.

[sqcomp]

^ x2

Derick and I have a LOT of experience with these. What'll happen is that you'll pop the top end out. It'll come off just an inch or two. At that point there are two swivel clips in the middle portion of the pillar. You CAN manipulate these manually (without tools). You need to turn those clips 90 degrees and the pillar will release up and out.

[screenprintr]

Thanks sqcomp. Is there any issues with the Airbag being there?

[sqcomp]

Issues with the airbags? Not really.

The only thing is, when you re-install the pillar and turn the clips back to secure the assembly, make sure that the "small end" of the clips is facing down. If the smaller end of the rotating clip is up, the clips won't seat correctly.

Something tells me that I'll have to take a picture...

[derickveliz2]

I saw this brochure and I got an idea!



D.

[sqcomp]

And? Share!

I installed the Whiteline 22mm rear sway on the car on Thursday. Nice stuff right there. Turn in is almost effortless. I get a bit more feedback from the tires themselves. That sway bar seems to take the rear end movement down and place it on the front wheels much more significantly. The rear end wiggle is much more controlled, dare I say almost non existant. I'm waiting for a dry day to see what these tires can actually do...

[derickveliz2]

Originally Posted by sqcomp

And? Share!

It would be for Shows and Meets!



D.

[derickveliz2]

Originally Posted by sqcomp

And? Share!

I installed the Whiteline 22mm rear sway on the car on Thursday. Nice stuff right there. Turn in is almost effortless. I get a bit more feedback from the tires themselves. That sway bar seems to take the rear end movement down and place it on the front wheels much more significantly. The rear end wiggle is much more controlled, dare I say almost non existant. I'm waiting for a dry day to see what these tires can actually do...

Isn't that awesome!
The best mod for suspension, I remember when I tested mine after installing, besides a big smile on my face I said... "Feels like a Go-Cart"

Improved the stability at high way speeds 100% I'm talking my cruising commute that ranges between 70-90 MPH

D.

[derickveliz2]

Some thing like this!



D.

[derickveliz2]

Ok today I found an awesome way to adjust my center image:

I had my cellphone right in front of the instrument panel (arrow 1) with the GPS rolling and telling me what was my next turn. When... I just realized that...

While listening to a track with a very solid center image I noticed the voice of the singer was behind my cellphone's voice, a little bit to the left, so...

I moved my phone above the instrument panel (arrow 2) now playing a song... Still my center image was behind so...

I moved my phone behind the instrument cluster (arrow 3) in the center of the dashboard where the windshield meets... (Note that this position is about 5 feet from my right ear)

My center image was some how next to the phone's (playing another song in speaker voice) so...

I proceed to adjust my Time Alignment (T/A) to mach the position of my cellphone playing a different song, since it's mono gives me the feedback of a center channel where I can match my center image.

End result while experimenting with this was really good and makes sense to me, what do you think?

Conclusion: a new way of Tuning may be accomplish using my cellphone with one speaker and placing the speaker on arrow 3 (see image below) adjusting Left and Right EQ and T/A to match my center image. I got to try this over my lunch time this week.




D.

[sqcomp]

Phasing! It's all about phasing.

[derickveliz2]

Originally Posted by sqcomp

Phasing! It's all about phasing.

I know about phasing in my own way of thinking, from...

Subwoofer > Lows < Mids > Tweeters

But I'm confused on if it's a left to right phasing?

Could you expand and explain a little bit more about phasing, please

D.

[sqcomp]

Think phasing for imaging detail and amplitude for imaging placement.

With the P-99, don't be afraid to play with the amplitude of the left and right on the four way crossovers.

Oh! It looks like I've sold one of my big amps. I'll be replacing it with a full range D class piece 1/4 of the weight.

[derickveliz2]

This is what I did today...

By putting my cell-phone on speaker (on arrow 3) Playing Pink Noise
I get a physical sense of where the center image would be.

Then I go through the process of playing each frequency induvidually and
adjusting my EQ, Left & Right to match the location of the Pink Noise played by my cell-phone.

I did it once this afternoon and works really good, after comparing my previous set up (Left & Right EQ by ear)
improved the center image and I believe I can go further out one more time
by projecting the physical location of my Pink Noise source to the left,
therefore placing the center image even further outside the windshield.

We'll see.

D.