Yaris Sedan Deadening and Sound system upgrade

[derickveliz2]

Originally Posted by derickveliz2

Thanks! I got it.

now lets get to learn and work... what do you think about these:

"When you are satisfied with the tonality of the system, it is time to start adjusting the left and right channels separately. These adjustments should not affect the tonality, but improve on the imaging and soundstaging. Using the Autosound 2000 Test CD 102 or 103 “My Disk” listen to the individual frequency pink noise tracks. (Test CD103 has the tracks arranged in an easier configuration.) Each frequency band should sound like it is coming from the center of the soundstage. If one band is off to one side, then use each band’s left and right eq controls as a balance control. This is very similar to the head unit’s balance control, only now you are balancing each frequency band by itself. For example if 200 Hz seems to be shifted to the left of center, lower the left 200 Hz band and raise the right 200 Hz band one dB at a time until the band is centered. If a frequency is shifted to the right, lower the band’s right channel and raise the left channel in small amounts." from a DIYMA member.

and this one....


"I must say that all I did was burn a CD that contained 0db tones that matched each one of the 31 bands on my EQ. Then I sat in my car for about 10 minutes and played each tone starting low and going up high. I kept my head perfectly still in the position I would normally drive down the road in.

Then I played each tone and adjusted the R and L EQ (graphic) and just played with cutting the R and then boosting the L and vice versa until I felt the sound was centered. Some bands needed up to +/- 3db and others needed no adjustment at all from what I could hear. And some bands I couldn't honestly resolve.

When I was done, I looked at my EQ and it was a MESS! LOL. Flipping back and forth between L and R yielded no pattern or symmetry at all. I thought, no possible way is this going to sound good. So I put in my Audiophile Female Vocal CD and cranked it up.

WELL SLAP MY A... AND CALL ME CHARLIE!! If Rebecca Pidgeon was 3 feet away from me she was a mile! It honestly felt like I had moved back in my seat, but my head had stayed in the same place the whole time. I estimate my stage moved 3" up and about 1 foot away...practially eliminating the windshield all together. I thought my stage was good before, but I damn near greased my shorts.

And the focus! Oh the focus...like I've never heard. Like scary real! Apparently sound recordings are done in actuall rooms, because it sounds like the singer is contained in a space, rather than just singing into a microphone" ... from another DIYMA member even though he has been banned

D.

.

OK, I did it! (first attempt)

I couldn't test it with normal volume because I was in the garage while the rest of the family was sleeping, so tomorrow I'll try it "out loud"

But from what I could hear at very low volume is... WOW!


I started with my EQ "Flat" and work my way around every tone, some where to the right others to the left and others right on center. My EQ graph end up like crazi!!! I'll get pictures tomorrow (well later today).

Lets see what Why? thinks about it. We are meeting for lunch, but I think he is only interested in the little i6SW and not in front stage or SQ.

Back to tuning Left and right EQ I must say... there is so much to learn out there. And amazes me every time I get positive results.

D.