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Re: Attenuate highest highs?

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On 18/02/2020 9:27 am, dpierce.cartchunk.org@gmail.com wrote:
> On Sunday, February 16, 2020 at 1:29:45 PM UTC-5, Trevor Wilson wrote:
>> On 15/02/2020 5:32 am, Peter Wieck wrote:
>>> I think you are missing the point. If too much energy is being
>>> dissipated by the speakers in the high range, then too much energy is being >> dissipated in the high range.
>>
>> **Unlikely. Assuming nothing is broken is the system (as suggested by
>> Dick), then it is almost certainly a room problem.
> 
> AAT the kind of frequencies the original poster is talking
> about, it is almost certinaly NOT a room problem. It would
> be about the LAST thing I would go looking after.

**I've read the OP's words and there is ZERO reference to specific 
frequencies. The OP could be referring to frequencies around 3kHz for 
all any of us know. I see no measurements, nor anything else that could 
provide a starting point for investigations.


> 
> Room and speaker/room
> 
>> interaction *IS*, by a very considerable margin, the dominant factor is
>> perceived audible problems in an audio system.
> 
> Not at the kinds of high frequency (>10 kHz) the poster is taking
> about, no.

**I don't see how you can infer that >10kHz is the problem. >10kHz is 
NEVER, IME, a problem for anyone other than children.

> 
> In all the speakers I have measured in rooms, and that number is
> not inconsiderable, the higher frequencies, and especially that
> region around and above 10 kHz, shows the closest approach to the
> anechoice response of the loudspeaker.

**Sure, but you are assuming the OP knows that >10kHz is the problem. I 
posit that the likely problem frequencies are lower. MUCH lower.


> 
> Why? For it to be a room problem, you have to have a LOT of paths
> (and by "a lot", I mean the preponderance of all possible paths)
> whose length is proximal to whiole number multiples of eithe 1/4
> or 1/2 a wavelenngth to within a high degree of precision (maybe
> +- a few degrees total phase error), and we're talking wavelength
> on the order of an inch or less. Further, all these paths must have
> a very low total absorption along the paths.
> 
> 
>> And, the brute fact of the matter is that there is not a whole lot
>> going on above 15 kHz anyway. So if the OP perceives that his speakers
>> are overly bright, we should start there.
> 
> I would suggest this will be a fruitless pursuit.
> 
> Now, if it was just a LITTLE lower in frequency, like a factor
> a hundred times lower, you might have a case.

**I will bet you that the problem can be solved using appropriate (and 
inexpensive) room treatments. It always is. Room effects dominate ANY 
system. And, frankly, I don't know why you are arguing this point with 
me. You know I am correct. What neither of us know, is the ACTUAL 
frequencies that are causing discomfort. I betcha it is somewhere around 
3kHz. After we see some measurements, then we will know for sure.



-- 
Trevor Wilson
www.rageaudio.com.au

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Attenuate highest highs? ~misfit~ <shaun.at.pukekohe@gmail.com> - 2020-02-13 01:19 +1300
  Re: Attenuate highest highs? Unsteadyken <unsteadyken@gmail.com> - 2020-02-13 16:59 +0000
    Re: Attenuate highest highs? ~misfit~ <shaun.at.pukekohe@gmail.com> - 2020-02-14 12:18 +1300
  Re: Attenuate highest highs? Peter Wieck <peterwieck33@gmail.com> - 2020-02-14 04:11 -0800
    Re: Attenuate highest highs? ~misfit~ <shaun.at.pukekohe@gmail.com> - 2020-02-18 18:05 +1300
      Re: Attenuate highest highs? Peter Wieck <peterwieck33@gmail.com> - 2020-02-18 06:45 -0800
        Re: Attenuate highest highs? ~misfit~ <shaun.at.pukekohe@gmail.com> - 2020-02-19 14:21 +1300
  Re: Attenuate highest highs? Trevor Wilson <trevor@rageaudio.com.au> - 2020-02-15 04:18 +1100
    Re: Attenuate highest highs? Peter Wieck <peterwieck33@gmail.com> - 2020-02-14 10:32 -0800
      Re: Attenuate highest highs? Trevor Wilson <trevor@rageaudio.com.au> - 2020-02-17 04:58 +1100
        Re: Attenuate highest highs? dpierce.cartchunk.org@gmail.com - 2020-02-17 14:27 -0800
          Re: Attenuate highest highs? Trevor Wilson <trevor@rageaudio.com.au> - 2020-02-19 06:35 +1100
      Re: Attenuate highest highs? ~misfit~ <shaun.at.pukekohe@gmail.com> - 2020-02-18 17:28 +1300
        Re: Attenuate highest highs? Trevor Wilson <trevor@rageaudio.com.au> - 2020-02-19 06:41 +1100
          Re: Attenuate highest highs? Trevor Wilson <trevor@rageaudio.com.au> - 2020-02-19 09:14 +1100
            Re: Attenuate highest highs? ~misfit~ <shaun.at.pukekohe@gmail.com> - 2020-02-19 15:02 +1300
              Re: Attenuate highest highs? Trevor Wilson <trevor@rageaudio.com.au> - 2020-02-20 08:44 +1100
                Re: Attenuate highest highs? ~misfit~ <shaun.at.pukekohe@gmail.com> - 2020-02-20 13:05 +1300
                Re: Attenuate highest highs? Trevor Wilson <trevor@rageaudio.com.au> - 2020-02-21 05:01 +1100
                Re: Attenuate highest highs? Peter Wieck <peterwieck33@gmail.com> - 2020-02-21 04:37 -0800
                Re: Attenuate highest highs? Trevor Wilson <trevor@rageaudio.com.au> - 2020-02-22 06:57 +1100
                Re: Attenuate highest highs? Peter Wieck <peterwieck33@gmail.com> - 2020-02-21 12:48 -0800
                Re: Attenuate highest highs? Trevor Wilson <trevor@rageaudio.com.au> - 2020-02-23 05:37 +1100
          Re: Attenuate highest highs? ~misfit~ <shaun.at.pukekohe@gmail.com> - 2020-02-19 14:28 +1300
            Re: Attenuate highest highs? Trevor Wilson <trevor@rageaudio.com.au> - 2020-02-20 08:57 +1100
              Re: Attenuate highest highs? ~misfit~ <shaun.at.pukekohe@gmail.com> - 2020-02-20 13:46 +1300
                Re: Attenuate highest highs? Peter Wieck <peterwieck33@gmail.com> - 2020-02-20 05:18 -0800
                Re: Attenuate highest highs? Trevor Wilson <trevor@rageaudio.com.au> - 2020-02-24 09:46 +1100
    Re: Attenuate highest highs? ~misfit~ <shaun.at.pukekohe@gmail.com> - 2020-02-18 16:18 +1300
  Re: Attenuate highest highs? dpierce.cartchunk.org@gmail.com - 2020-02-14 13:05 -0800
    Re: Attenuate highest highs? ~misfit~ <shaun.at.pukekohe@gmail.com> - 2020-02-18 17:48 +1300
  Re: Attenuate highest highs? "Mat Nieuwenhoven" <mnieuw@zap.a2000.nl> - 2020-02-17 08:50 +0100

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