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  • dgrambo
    replied
    Re: OmniMic Calibration - How much difference does it make?

    Originally posted by Jeff B. View Post
    I have received me mic back - very fast turn-around from PE, I highely recommend the service - and I have loaded the newest version of the software, and burned a new test disc as well.

    So, how much difference does this calibration make? Out of curiosity, and a concern for things I have already measured, I decided to see.

    My test speaker is the RS28F tweeter on a foam baffle with the mic about 1 foot away. The hump and dip seen in the graph are effects from this baffle. However, they don't really mean anything, what I am looking for here is a difference between the twp lines.

    During this test I used the same track, and never changed the volume level on the amp, nor did I move the mic or speaker. All I did was change between calibration settings between the two tests, then lay them over each other. Here is what I got:


    The blue line is the original alpha-numeric calibration and the red line is using the new calibration file for my mic. As you can see there are some differences. They don't exceed much over 1dB, but they are a bit different. I thought I would post this for information purposes, for those who may have wondered about this.

    Jeff B.
    Thanks old buddy! :D

    Leave a comment:


  • bwaslo
    replied
    Re: OmniMic Calibration Announcement

    Arlis,

    Not to answer for Rich -- but I doubt they could do that. The calibration at PE is done by one engineer there who has lots of other duties (including design of some of the woofers), and he also usually does calibrations on the weekends when the facility is more quiet. It isn't easy calibrating to low frequencies when there is conveyer noise.

    Leave a comment:


  • arlis_1957@yahoo.com
    replied
    Re: OmniMic Calibration Announcement

    rich, if i bring it to pe, can someone calibrate it while i wait?

    Leave a comment:


  • arlis_1957@yahoo.com
    replied
    Re: OmniMic Calibration Announcement

    thank you jeff. mine is also alphanumeric. early addition. perhaps i should send it in too.

    Leave a comment:


  • Jeff B.
    replied
    Re: OmniMic Calibration - How much difference does it make?

    I have received me mic back - very fast turn-around from PE, I highely recommend the service - and I have loaded the newest version of the software, and burned a new test disc as well.

    So, how much difference does this calibration make? Out of curiosity, and a concern for things I have already measured, I decided to see.

    My test speaker is the RS28F tweeter on a foam baffle with the mic about 1 foot away. The hump and dip seen in the graph are effects from this baffle. However, they don't really mean anything, what I am looking for here is a difference between the twp lines.

    During this test I used the same track, and never changed the volume level on the amp, nor did I move the mic or speaker. All I did was change between calibration settings between the two tests, then lay them over each other. Here is what I got:


    The blue line is the original alpha-numeric calibration and the red line is using the new calibration file for my mic. As you can see there are some differences. They don't exceed much over 1dB, but they are a bit different. I thought I would post this for information purposes, for those who may have wondered about this.

    Jeff B.

    Leave a comment:


  • Deward Hastings
    replied
    Re: OmniMic Calibration Announcement

    Got mine back today . . . a couple days over two weeks turnaround including USPS from me and FedEx back (delivered on Saturday at that). No complaint there.

    Loaded the software upgrade (3.10) and the calibration file . . . all easy as can be. No complaint there.

    Can't say it's any better as a practical matter (I'm never going to measure anything down to 5 Hz.), but it's a definite confidence builder. And there are those new "features" to try. No complaint there.

    Pretty much a no-brainer for anyone with one of the earlier (Type 1) OmniMics . . .

    Thanks PE and Bill . . . great product, great support.

    Leave a comment:


  • laugsbach
    replied
    Re: OmniMic Calibration Announcement

    Originally posted by ErinH View Post
    ...I'm really a bit confused. I thought the OM was calibrated already.
    My OM was way off and after talking with Bill Waslo, it was determined that my OM was defective. PE is offering the service to re-calibrate your OM and provide a file based calibration file vs. a code based. Also, I think the FR has been extended to 5Hz with the new calibration at PE.

    I was under the impression this was for peace of mind to all of the existing customers and not intended to allow you to use the OM with other software.

    Leave a comment:


  • internova
    replied
    Re: OmniMic Calibration Announcement

    I sent mine back this morning. It is currently OOS from PE. Any insights on when OmniMic will be available again?

    Leave a comment:


  • ErinH
    replied
    Re: OmniMic Calibration Announcement

    Originally posted by Deward Hastings View Post
    No. Didn't say, or "insinuate", a thing about you . . .
    Just the way it read.

    Leave a comment:


  • Deward Hastings
    replied
    Re: OmniMic Calibration Announcement

    Originally posted by ErinH View Post
    Are you insinuating
    No. Didn't say, or "insinuate", a thing about you . . .

    Leave a comment:


  • ErinH
    replied
    Re: OmniMic Calibration Announcement

    Originally posted by Deward Hastings View Post
    The answer has to be that it's not the same, or they wouldn't be doing what they are doing. I'm not going to speculate, I'm going to be thankful for the great support for an already great product.

    I don't see any downside to letting them re-calibrate it. Easily worth the 12 bucks postage.
    Are you insinuating that me asking exactly what the reason for this calibration service is for is me being ungrateful? Seriously?....

    I just want to be informed.

    I'll wait for an authorized answer. You and I have speculated enough. ;)

    Leave a comment:


  • Deward Hastings
    replied
    Re: OmniMic Calibration Announcement

    Originally posted by ErinH View Post
    Can't you just reassign the frd as txt or pull the info from it and save on text pad?
    The answer has to be that it's not the same, or they wouldn't be doing what they are doing. I'm not going to speculate, I'm going to be thankful for the great support for an already great product.

    I don't see any downside to letting them re-calibrate it. Easily worth the 12 bucks postage.

    Leave a comment:


  • ErinH
    replied
    Re: OmniMic Calibration Announcement

    I ate same as well but like I said above, I can export the frd file as it is. I've yet to try to use that file with another program. So, maybe the text file is the difference?
    But surely not. Can't you just reassign the frd as txt or pull the info from it and save on text pad?


    That's why I'm asking for clarification.

    Leave a comment:


  • Deward Hastings
    replied
    Re: OmniMic Calibration Announcement

    Originally posted by ErinH View Post
    Looking forward to a bit more clarification as to what/why this is being offered
    I'm assuming that the full calibration curve will be importable to other software (like REW) . . . making the mic itself more generally useful. Mine's already on its way back, based on that assumption. It will also make it easier to compare/cross-calibrate with my Behringer . . .

    Leave a comment:


  • ErinH
    replied
    Re: OmniMic Calibration Announcement

    Just to clarify...

    When used in conjunction with the OM software, the cal file is 'built in', correct?

    I'm assuming this is just for a service which provides a text file to be used with any other program as a cal file for the mic to be used in conjunction with (ie: load the txt file in to TrueRTA and use the OM). I have noticed a way to export the cal file via .frd and have tried that with no success on TrueRTA; it just freezes up True and shuts it down.


    If I'm wrong here in my assumption, I'm really a bit confused. I thought the OM was calibrated already.


    Looking forward to a bit more clarification as to what/why this is being offered since I own an alphanumeric mic and may need to send mine in depending on your reply.

    Thanks,
    Erin

    Leave a comment:

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