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How does everyone get their ta numbers?

Old 06-12-2011, 05:34 PM
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How does everyone get their ta numbers?

Ok, I am curious how everyone dials in their time alignment perfectly. I would prefer those that are using the Audison Bit One.1 but anybody can chime in. How I have done it I think is right but find out I have floating center image problem on some songs. I measured distances from the center of where my head should be (estimated of course) to each driver panel (they are all hidden in factory spots). I then use a few songs that I think have good vocals to center the image via adding to the side that is out. ie. if the image is pulled left I add 0.02 ms intervals fine tune to the left side until it centers. Maybe my ears are just not trained well enough here but it seems to be centered for maybe up to 0.16-0.20 ms (ie I can't tell a difference from 0-0.20 added). I have had it at probably every conceivable spot but it is never right if ya know what I mean. I am especially having problems with the tweeters. Any help much appreciated.
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Old 06-12-2011, 10:08 PM
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Sounds like your doing it the standard "correct" way. I'm not going to tell you how I do it, but consider that you are probably having phase issues and frequency steering issues. All of these problems can be fixed or at least minimized with your processor.

Good luck.
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Old 06-13-2011, 06:42 AM
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Originally Posted by fozzz View Post
Sounds like your doing it the standard "correct" way. I'm not going to tell you how I do it, but consider that you are probably having phase issues and frequency steering issues. All of these problems can be fixed or at least minimized with your processor.

Good luck.

Well, I was hoping SOMEONE would tell me how they did it. I have no intention of competing or anything. I just want good sound - that's all. I did mess around with it yesterday again a bit. I think it sounded better but I have been there before only to go for a drive and find it's still not correct.
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Old 06-13-2011, 08:49 AM
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I used mississippis
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Old 06-13-2011, 06:29 PM
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Originally Posted by fresh1 View Post
I used mississippis
Huh, don't think I get this comment...
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Old 06-13-2011, 06:39 PM
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You are doing it the right way. Very few cars have solid imaging with all music. So your not alone in your quest.
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Old 06-13-2011, 06:59 PM
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Originally Posted by fozzz View Post
You are doing it the right way. Very few cars have solid imaging with all music. So your not alone in your quest.
Good to hear but I was just hoping to get some tips from someone that might have mastered this. Anybody have suggested recordings to work with that are better than others for this purpose? I did read something somewhere where someone did it exclusively with pink noise but not sure how that worked. I have tried listening to pink noise while doing it but it just sounds like constant noise - chaotic if you know what I mean. Anyway, good to know that I am at least not way off base here and that others have the same issues.
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Old 06-13-2011, 09:32 PM
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Pink noise will only help if you have a meter. If your doing everything by ear, use 1/3 octave tones. If your cars eq is set up correctly, you should hear all the tones from the centre of your stage.
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Old 06-14-2011, 08:00 AM
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Honestly, it's REALLY tough. With all the reflective surfaces and then how different frequencies react differently to those surfaces, it's really a bag of sH*t to figure out perfectly. Throw in some bad recordings, imperfect equipment, installation inaccuracies and WOWZA, lots of places to mess things up. To top it all off is the fact that everyone hears things differently as we're all made differently (duh!!!). Car audio is VERY complicated to get exactly right, even with tools such as time alignment, EQs, flexible x-overs , etc.


The Mississippi comment.......... that's how he counts it out. One mississ, two mississ and so on. Sar-kass-ummm at it's worst.
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