HOLM "time lock" help needed - diyAudio
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Old 17th November 2014, 11:45 PM   #1
diyAudio Member
Join Date: Nov 2014
Default HOLM "time lock" help needed

Hello folks,
I'm new to the forum. Hopefully when my knowledge increases I'll be able to join in on some the conversations around here. But for now all I have is questions.
I've recently learned ARTA and now I'm learning HOLM. I'm finding it fairly straightforward to learn but for some reason I'm stuck on the "time lock" feature. I need a step by step tutorial here as I'm just not getting it. I understand what the feature does just not the proper steps to using it properly.
Do I simply take my first measurement of the tweeter on-axis using measurement section A, then go to the Data analysis tab, click on "time lock" and "use", then go back to the measurement tab and measure the tweeter again and then measure the woofer in measurement section B? Should I use the tweeter and woofer measurements that were taken AFTER I clicked "time lock" and "use"?

Last edited by Unshackled; 19th November 2014 at 07:31 AM.
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Old 18th November 2014, 09:11 PM   #2
diyAudio Member
Join Date: Nov 2014
Hmm. I thought there were a number of HOLM users here that might be willing to help me out. Guess not.
Can anyone point me in the direction where I might find the answer? Thanks.
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Old 19th November 2014, 02:17 PM   #3
JMB is offline JMB  United States
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Join Date: Apr 2004
Location: Texas
I do not use Holm but as I recall there was a discussion either here or at Partsexpress forum that described this feature. I think that you have to take a measurement and then set the lock feature so that all subsequent measures abide by it.
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Old 19th November 2014, 03:33 PM   #4
diyAudio Member
Join Date: Nov 2014
Thank you. I've search and searched for that discussion but can't find it. I read through over 50 pages on this board last night and couldn't find the answer. And an extensive Google search has not helped either.
I believe you're correct about how to use it properly. I'd just like to be 100% sure before I commit to using Holm for real work. I PM'd John K. over at the parts express board with this question because he's mentioned in the past that he's very familiar with this software. Hopefully he'll have the answer for me soon. I'm getting my Cross Spectrum Labs mic this week and would love to put it to good use.
Thanks again.

Last edited by Unshackled; 19th November 2014 at 03:48 PM.
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Old 25th November 2014, 03:23 PM   #5
jtalden is offline jtalden  United States
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Join Date: May 2009
Location: Michigan
> Device & Signal/Start Stream ("Keep in/out stream active" should be checked first).
> Measure a tweeter.
> Data Analysis/Time zero locked (select)
> Then select "last detected"/Use

The key you may be missing is probably the first step? It must be activated first.

The "locked offset" value can be set in other ways and the value can be change as needed to adjust the timing where you want it.
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