Recent content by dlr

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    Frequency Normalized Distortion

    Ah, I had no clue. Thanks, I'll check that out.
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    Frequency Normalized Distortion

    John, The March 2026 edition of audioXpress has an interesting article on transducer distortion and measurements. It's by Steve Temme of Listen, Inc. who proposed a distortion measurement algorithm (1993) he called Frequency Normalized Distortion. He explains and demonstrates in the article...
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    REW Beta Release REW API beta releases

    No, I had not changed the Overlays Y axis. Thanks.
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    REW Beta Release REW API beta releases

    I recently purchased the miniDSP UMIK2 and installed the driver into my test laptop. REW recognized it right away and I had no trouble using it for a day now. I use FlexASIO for my Scarlett 2i2 output with the mic as input. That works well. I've noticed an issue in graphs since switching to...
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    Remote Desktop

    TightVNV. I checked them out before settling on this one. Works well without fail. When you install you set viewer and/or server in each one. I'm not aware that you can mix-n-match versions of VNC. Use TightVNC for both server and viewer.
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    Remote Desktop

    So problem solved, that's good. The one difference I would point out is that I suspect VNC doesn't require any special actions on the user's part to start it up. It just works, at least with anything I've done in REW and other software. Can't confirm REW use with a microphone, however. For...
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    Remote Desktop

    Just a suggestion - TightVNC. I use it on a regular basis controlling a laptop running REW, a PC as music server and NAS, measurement PCs and a dedicated speaker DSP system. It doesn't require the Win Pro license the Remote Desktop does. But I'm not making audio measurements so no mic at this...
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    Why not linear phase?

    I left in that way because it's no effort either way. My point was to say that there is no audible difference between the two . I haven't tested that with my old 3-way that has PR system bass (I may at some point), but from all I've read there has not been any published research of which I'm...
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    Why not linear phase?

    I've been using the Ultimate Equalizer (UE), part of the Bodzio software SoundEasy (SE) in my main dipole system for more than 10 years. 3-way system, linear (as in zero) phase, LR8 crossovers. It's commercial, yes, but worth the relatively cheap cost for the performance. This isn't guesswork...
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    Accuracy of harmonics amplitude in RTA

    Comment and question for John. This is a very interesting thread. I'm still on the learning curve on hardware distortion measurement with issues in my rig I haven't resolved due to limitations of my test hardware, in this case the Scarlett 2i2 Gen 4. It's self noise is a problem, but improved by...
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    Virtual balanced input is disabled when using the Scarlett 2i2

    One more observation. The Measurement Info in the main screen indicates Windows 10 on my W11 PC.
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    Virtual balanced input is disabled when using the Scarlett 2i2

    Bingo! That did it. The option appears in Preferences and the pull down for diff/Sum works now. Edit: Thanks, I hadn't thought of trying that. Any idea what might create that issue?
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    Virtual balanced input is disabled when using the Scarlett 2i2

    I haven't tried that, I'll do it now.
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