Recent content by skid00

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    Microphone placement for measurements

    My suggestion is that you try all variations, and compare the graphs. I think the largest consensus is to slowly sweep the 'head space' or the entire row of listener's head spaces while using pink noise. I run a sweep for each ear, at the ear's location in space, with the mic pointing at the...
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    MartinLogan Expression 13A Electrostatic Speaker Review with ARC

    My Carver Amazing dipoles radiate strongly out to ~75*, and maybe more (I didn't check any further). They are a trapezoid 3' wide at top, 4' wide at bottom, and 5' high, so somewhat similar in size to the ML's.
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    MartinLogan Expression 13A Electrostatic Speaker Review with ARC

    Could I beg you to post the REW data file? I want to see how my speakers compare. Thank you.
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    How did you choose your DAC?

    I originally searched the internet, and then reviews for units that fit my price range, and that were portable. I wanted to listen to Sennheiser 800s headphones with a laptop. After I digitized all my music, I wanted a good measuring DAC for my main system. I used Audio Science Review's...
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    eqAPO has no effect on REW

    I have been using both for more than 5 years. John-does exclusive mode bypass EQapo?
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    EQ for Mixing/ Mastering Studio!!!

    I play FLAC thru a laptop. I use EQapo to equalize my speakers. I export text files generated by REW's EQ function. I put the files in .txt files, and put the names of those .txt files into EQapo's default .txt file in the EQapo directory. (I can't remember the name of the default file...
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    Looking for Longer UMIK-1 Cable

    I had problems with two different ~15 foot cables. I went back to the one supplied, no problems then. (And I have a new, and old UMIK-1). FYI.
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    Can I Use REW for PA Adjustment (Church, School, etc.)

    You can create a downloadable file of a 20hz-20,000hz sweep. Then play it on the church system. REMEMBER to include the beginning and ending timing chirps!
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    On a quest to improve my B&W DM640's

    " Is it better to measure and equalize based on quasi-anechoic conditions?" It is crucial. Your ear/brain notices the freq response from the direct radiation of the speaker, disregarding (for the most part) the reflections of all objects around the speaker. Your measurement mic doesn't...
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    Do these measurements look right?

    Room reflections will play a huge part in the smoothness of the curve. You'd have to suspend the speaker 20 feet in the air, or use an anechoic chamber, to match the mfr's curve.
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    umik-1 not being recognised when plugged in

    If that doesn't work, try a shorter USB cable. Ask me how I know!
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    Equalizer APO stopped working, nothing can fix it

    Why don't you try to give us something to work with?
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    UMIK-1 USB Cable Recommendation

    Longer cables won't work, or will sporadic. I went back to a 6' cable. I use an MS Surface laptop PC, and put it on a stool, with the mic on a tripod, or hand-held.
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    Some guides to REW and acoustic measurement

    I've done several dozens of measurements. I've tried hand-held, hand-held with a 3' heavy tripod leg, on a heavy tripod, on a heavy tripod with 3" of fiberglass on the front side of the legs and mount, and on the tripod with a 9" square by 2" soft foam baffle 3" behind the tip of the...
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    1st attempt using the auto eq

    I'm sorry! Misremem---Oh! Squirrel!
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