Recent content by Mark Wilkinson

  1. M

    SPL meter; LZpeak question

    Thank you very much !
  2. M

    SPL meter; LZpeak question

    Hi, very curious how the peak meter works. Does it use a 35ms Time weighting like in the Impulse mode that I've seen in ARTA and this explanatory snip from NTI? Or does it use a different method? I guess my real question is how short of a duration, does the peak meter capture accurately? At...
  3. M

    Is there a way to compare Scope traces?

    It's easy to understand the need to prioritize to the majority of users needs. It is a really cool scope, wish more folks were aware/using it. (and Thx for it !!! ) I've found a decent work around, exporting ARTA wavelet captures into REW. The REW graphics capability are simply so much...
  4. M

    Is there a way to compare Scope traces?

    The Scope is great :T Been using it to capture Wavelets via the Generator's Tone burst capability, playing with the technique presented in this article. https://www.prosoundtraining.com/2019/07/26/signal-aligning-using-wavelets/ The wavelets are proving to give very repeatable times-of-flight...
  5. M

    REW as FIR maker

    Thanks. Yes, I'm familiar with EQ filter export. Sorry for lack of clarity at what I'm hoping to accomplish. The inverse impulse multiplied by a xover gives a near perfect flat mag and flat phase correction, using a total window of 86ms or 4128 taps, split 43ms Left and 43ms Right. I'm very...
  6. M

    REW as FIR maker

    Take it back. I can't begin to get anything usable with a small left window. Had files confused...my bad. Linear phase, windows equal is all i've made work so far...
  7. M

    REW as FIR maker

    Thank you, that will help when trying out FIR files meant to replicate IIR, when I want to start Left window near 0. I've been using 0.1ms Left window with success, but having trouble with Left set to 0. I figure I'm missing something still...
  8. M

    REW as FIR maker

    It's to more easily choose an export length. And to get past the Right Window rounding inputs to the integer.
  9. M

    REW as FIR maker

    Thank you sir ! Yes, my measurements are quasi-anechoic, best as I can achieve taken outside. Speaker building is the hobby...gave up on rooms along time ago lol Good to learn about the "Offset t=0" control, and its 1 us increment. I wish my processor worked at 96kHz for such fine phase...
  10. M

    REW as FIR maker

    Hi John, first post, and gratitude comes first.... What a blessing REW is to the DIY community. Thank you so much ! I've been experimenting using REW to make linear phase FIR filters and am hoping to get corrections to my process, and/or what you would consider best practice. Test bed...
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