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Can I create an FRD file using Omnimic by...

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  • dcibel
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    Click image for larger version

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  • tomzarbo
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    Originally posted by Rao Shaheryar View Post
    I read your question and then I find solution the solution I find which is also describe in this forum I supported this answer
    "FRD" type text files as generated by OmniMic or other programs. These files can also be easily created using any text editor such as Windows' "Notepad", or a spreadsheet program." Thank You!!
    Are you real?

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  • Rao Shaheryar
    replied
    I read your question and then I find solution the solution I find which is also describe in this forum I supported this answer
    "FRD" type text files as generated by OmniMic or other programs. These files can also be easily created using any text editor such as Windows' "Notepad", or a spreadsheet program." Thank You!!

    Leave a comment:


  • flisterseven
    replied
    FRD" type text files as generated by OmniMic or other programs. These files can also be easily created using any text editor such as Windows' "Notepad", or a spreadsheet program. avast driver jiofi.local.html

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  • duanebro
    replied
    Re: Can I create an FRD file using Omnimic by...

    Originally posted by [email protected] View Post
    Same here Howard. I find it very important to name all files so you know their stage.
    Measured frd=RAW. Min Phase = frd-extracted. Ran through the Blender= frd-blended, etc. That way you import the right ones into PCD.
    Very true, more so when you are coming back to try again after a few months off...

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  • arlis_1957@yahoo.com
    replied
    Re: Can I create an FRD file using Omnimic by...

    Same here Howard. I find it very important to name all files so you know their stage.
    Measured frd=RAW. Min Phase = frd-extracted. Ran through the Blender= frd-blended, etc. That way you import the right ones into PCD.

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  • howard
    replied
    Re: Can I create an FRD file using Omnimic by...

    Thanks for the reply. I find that if I get too many steps I get lost. I have been trying to get this for about 10 years and I am closer but still not there yet.
    Howard

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  • arlis_1957@yahoo.com
    replied
    Re: Can I create an FRD file using Omnimic by...

    The BSLoss should be contained in the measurement. That is why you should measure where they will live. I find that the measured phase can often be very messy. When I extract min phase, the area around the cross stays about the same, but is cleaner looking.
    When I get around to my next build, I'll use 'fr blender' and extract the phase with it.
    JeffB has a nice white paper on its use.
    here http://audio.claub.net/software.html

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  • howard
    replied
    Re: Can I create an FRD file using Omnimic by...

    Arlis,
    If you measure your drivers in their cabinet do you still need to use the response modeler, adjust for BSC and extract minimum phase?
    Howard

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  • arlis_1957@yahoo.com
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    Re: Can I create an FRD file using Omnimic by...

    Wolf has some stuff in his blog as well.

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  • tomzarbo
    replied
    Re: Can I create an FRD file using Omnimic by...

    Originally posted by [email protected] View Post
    Yep, that's the way it is Tom. You can do all kinds of things but eventually you must measure the drivers in their home. This should include where they will live.
    Concerning mating drivers;
    look for drivers that have smooth fr above(in the case of woofer)where you intend to cross it. and a tweeter with smooth fr below where you intend to cross them.
    With this build, I would just estimate the acoustic offsets. You can learn Jeffs method later.
    Please don't apologize for not knowing this stuff. I suspect you will surpass my knowledge in no time at all.
    When you have your cabs built and are ready to measure I'll be more then happy to get on the phone with you, we can do it together if it helps. same, when you are ready to run the files through RM and PCD.
    Lots of folks helped me and I'm more then happy to pay it forward.
    Arlis,

    I can't thank you enough for your offer of help. I will get the cabs built and go from there. I intend to do my due diligence to learn from the material which is already out there, and has been clearly presented -- but I usually get stuck a few times, my brain works kind of funky sometimes...I will likely take you up on your offer at some point.

    Seeing the announcement today that registration is open for this year's MAF is getting my blood flowing to get started making some sawdust.

    Thanks again for the kind offer.

    TomZ

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  • arlis_1957@yahoo.com
    replied
    Re: Can I create an FRD file using Omnimic by...

    Yep, that's the way it is Tom. You can do all kinds of things but eventually you must measure the drivers in their home. This should include where they will live.
    Concerning mating drivers;
    look for drivers that have smooth fr above(in the case of woofer)where you intend to cross it. and a tweeter with smooth fr below where you intend to cross them.
    With this build, I would just estimate the acoustic offsets. You can learn Jeffs method later.
    Please don't apologize for not knowing this stuff. I suspect you will surpass my knowledge in no time at all.
    When you have your cabs built and are ready to measure I'll be more then happy to get on the phone with you, we can do it together if it helps. same, when you are ready to run the files through RM and PCD.
    Lots of folks helped me and I'm more then happy to pay it forward.

    Leave a comment:


  • tomzarbo
    replied
    Re: Can I create an FRD file using Omnimic by...

    Originally posted by Chris Roemer View Post
    Most guys will scour the net until they find SOME kind of freq. and imp. plots, then trace them with something like "SPLTrace". Worst case for a Z file would be to create one from WinISD data.
    I have the drivers, or I will have them by tomorrow, I can whip up a volume box to test from, but the actual box will be quite complex and will take me a few months to finish. I guess I should get the volume as close as possible to what the actual woofer box will be with port, and then make a baffle of the same dimension and mount the tweet/mid. The midrange is a sealed back unit, so no enclosure needed there.

    Thing is, there's gonna' be curves pretty much everywhere on this cabinet except for the front baffle, and it will take me some time to get this built. There's a few things that I'm not sure how I will even do, but that's the challenge that I love about this process.

    This crossover stuff is hard to get, but I really, really respect and admire you guys who have mastered this process and really understand it. Prepare to have an additional member added to your ranks eventually though, I don't give up. ;)

    TomZ

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  • Chris Roemer
    replied
    Re: Can I create an FRD file using Omnimic by...

    Most guys will scour the net until they find SOME kind of freq. and imp. plots, then trace them with something like "SPLTrace". Worst case for a Z file would be to create one from WinISD data.

    Leave a comment:


  • tomzarbo
    replied
    Re: Can I create an FRD file using Omnimic by...

    Arlis,

    I asked a similar question a few weeks ago referring to getting FRD and ZMA files, and you said:

    "I measure ts to determine the best volume, build the enclosure, then measure in box to get frd and actual zma."

    I thank you for being patient with me, I must seem like a little bit of a knucklehead understanding this stuff.

    But I guess what I'm getting at is how do you know if your selected drivers will work together well enough to even purchase them and put them in a box? Without modeling things how can you know if your selected drivers have a good chance of working the way you intended them to.... or is this why so many here have so many extra drivers?

    I will get a box together asap as soon as the drivers arrive and try to follow your steps.

    Thanks again for bearing with me,
    TomZ

    PS was there anything else you meant to say.... "all six files can be..." ?

    Leave a comment:

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