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  1. ernestcarl

    Importance of impulse response

    BTW, I just want to make it clear that when it comes to the manipulated in-room phase response as seen in the bass region above (orange curve only -- was motivated to see if I could lower the GD even more with rePhase without too much pre-ringing), it doesn't necessarily produce "better"...
  2. ernestcarl

    Importance of impulse response

    Some of this I expect the reader to figure out for themselves. I don’t feel it’s worth engaging further.
  3. ernestcarl

    Importance of impulse response

    So what do you suggest? Play all channels (e.g. 2.0/5.1/7.1) without checking if the system works well together? Sub unequalized and mains unequalized; no checking time of flight and time alignment; no bass management etc? I haven't really learned anything interesting from any of your...
  4. ernestcarl

    Importance of impulse response

    Okay, so we kind of already agree it's not enough to check the the default IR graph view alone. That's fine since there's a lot more information that can be gathered even just from a single in-room measurement. I made some re-adjustments to the crossover DSP EQ settings in my couch 5.1c setup...
  5. ernestcarl

    Importance of impulse response

    Unreachable in the vast majority system setups, but it might be useful as a point of comparison. Attachment wave file IR below is created with rePhase which anyone can import into REW. *centering does not make a significant difference, but it helps keep the file size smaller with the number of...
  6. ernestcarl

    Importance of impulse response

    You may be right for the most part — and it can be faster or often be convenient — but I reckon there are potentially some things you might not notice or miss.
  7. ernestcarl

    Group Delay 101

    I would think that in a mixing and mastering studio setting the concept is not entirely disregarded. It surely is one of the parameters an acoustician might want to observe.
  8. ernestcarl

    Importance of impulse response

    Since you mention “sound stage”… does this mean you listen in stereo as well to evaluate speaker performance? I ask because there are those who only do mono listening test evaluations for a variety of reasons.
  9. ernestcarl

    Kali IN-UNF - new ultra nearfield speakers

    I would have liked a grill to protect the satellite drivers, and maye the ability to thread the bottom of each sphere unto a 3rd party short mic stand if desired. I can imagine using this on a very tight office space desk.
  10. ernestcarl

    Group Delay 101

    My experience with the latter is you can reduce GD and improve the phase but there are limits. Try to correct too much and you can cause other anomalies such as pre-ringing. ... Suppose we flattened only the visible excess phase of this speaker "perfectly": With a filter tailor-made from a...
  11. ernestcarl

    Is the slope too much for this room.

    My guess is the measurement presented is no good. You might want to recheck or recount step by step your methodology.
  12. ernestcarl

    Help interpreting phase/SPL correlation

    Not sure about the "best way" as there are many ways to go about it. A convenient way is to apply automatic time offsets to both individual left and right measurements prior summing/vector averaging. In the All SPL tab view: In most cases, this will align all selected measurements very...
  13. ernestcarl

    Help interpreting phase/SPL correlation

    I haven't tried taking measurements using a large diaphragm condenser mic. However, you mentioned two speakers... Measure left and right individually. Vector average or measure both L+R when the correct time and phase alignment is confirmed. It could all be down to a microphone that's not...
  14. ernestcarl

    Importance of impulse response

    Well, I appreciate the clarification. You raised issues... in this case, those who take time to read and analyze measurements, perhaps, even working to improve them… information which can be gleaned from an impulse response. I do not remember a resolution you've provided.
  15. ernestcarl

    Importance of impulse response

    You assume I am supposed to be unaware of these things — because I have not mentioned it. And now the accusation of “misusing scientific terms in hyperbole”… eh, ok. So what exactly are we supposed to do alternatively then in your paradigm? I’m hoping you’ve got an interesting answer for us.
  16. ernestcarl

    What is group delay?

    Whoah! The ending line there in the animated presentation sounds a little bit too philosophical for comfort. o_O
  17. ernestcarl

    What is group delay?

    BTW, I don’t really think one has to truly understand the fundamental inner details of every single thing explained to get the gist of the concepts. I use EQ and FIR filters all the time and it’s not like I have attained a “God” PhD level of understanding, nor grasp every single variable and...
  18. ernestcarl

    What is group delay?

    Oh, yes... I've seen some multi-ways with a lot of GD... An ASR member's subwoofer GD:
  19. ernestcarl

    What is group delay?

    No need for an ABX trial here. With enough all pass filters, a difference should be easily audible. It is entirely possible that you will like the track with more group delay because the bass will sound somewhat artificially louder -- diminishing nuance and clarity in the rest of the spectrum...
  20. ernestcarl

    What is group delay?

    It seems to fit the context well -- though, eh, it may entirely be incidental. ;) Hopefully, someone in the know can confirm.
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