Followup article on 4-way open-baffle with miniDSP - Page 2 - diyAudio
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Old 23rd March 2011, 01:39 PM   #11
JohnR is offline JohnR  Australia
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Hi, yes, that's an in-room response taken with REW - no gating/windowing was applied.
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Old 26th March 2011, 02:33 PM   #12
theresa is offline theresa  United States
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Nothing wrong with EQ, its done from the beginning of the production chain to the end user. I am thinking of doing a 4 way open baffle but its unlikely. Right now I have three ways, subs, midwoofers, and tweeters. Thank goodness or miniDSP making this practical.
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Old 13th April 2011, 04:47 PM   #13
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JohnR,
Cannot thank you enough. I have the exact same setup and was not sure on what approach to take for measurements. The article is so good that I really want to donate to support your efforts.

Cheers!
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Old 16th April 2011, 12:53 PM   #14
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One more question:

You say that:
"There are various ways of working out what to set the time delays to, but here’s a fairly quick and simple technique:"

Well, this method works only with dual channel measurements, right? Because to determine delay you need reference channel. But where you get it?

Scheme must be like this: Click the image to open in full size.



But not like this:

Click the image to open in full size.
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Old 17th April 2011, 08:41 PM   #15
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And how you turn off filter for twitter? It's can be damaged without it....
I've use your technique for wof. and mid. delays was obtained. But how it can be done with twt?
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Old 18th April 2011, 06:26 PM   #16
JohnR is offline JohnR  Australia
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Thanks aazeez1975 for your kind words

bobkamikaze, just one channel needed (you figured that out I guess). Run the sweep just in the frequency range where the mid and tweeter are both "comfortable."
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Old 18th April 2011, 06:51 PM   #17
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MLS u mean? How can I run in range? I use Arta for measurements.
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Old 18th April 2011, 07:04 PM   #18
JohnR is offline JohnR  Australia
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I don't use ARTA... is there a way to set the start and end frequencies of a swept sine measurement?
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Old 18th April 2011, 07:06 PM   #19
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Nope.
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