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In Reply to: RE: Well... Impossible Quest posted by Chip647 on April 29, 2017 at 08:33:37
You didn't ever try what I did, did you?
I can certainly see what your frequency response graph looks like but the sonic signature I am talking about (with a CW tone) can easily be done nowadays and it puts you in the position of seeing the tiniest difference of excellent amplifiers among themselves, including the speakers.
Then you can "subjectively prefer" whatever excellent amplifier you want but the sonic signature might give you a chance to correlate your personal preference with some ambient measurement!
There are several freely available SW products that allows to generate by a notebook/i-phone/PC any suitable CW test tone (with excellent spectral purity) and to measure the room response (by the internal microphone).
It seems to me that nobody is curious anymore....
By the way, the same method allows to find the spatial and frequency "eigenvalues" of your listening room.
For example I have found in my living room two special positions where the low frequency portion of the spectrum is either enhanced or more flat.
ecc230
Follow Ups:
Your assertion that your method of frequency response measurement is the only acceptable form of curiosity is no different that the three Kimber wire people. I have done spectral analysis. I find your attitude unhelpful. Have fun.
"Your assertion that your method of frequency response measurement is the only acceptable form of curiosity is no different that the three Kimber wire people. I have done spectral analysis. I find your attitude unhelpful. Have fun."Did he really say that? It's not how I read it. And I didn't see anything "unhelpful" in his posts. Quite the opposite, in fact.
Edits: 04/29/17
"Your assertion that your method of frequency response measurement is the only acceptable form of curiosity"
Clearly your words, not mine, I have never written that (you can easily read again my posts to check it out).
Anyhow you did not answer the question "did you ever try?" and so your quite unpolite equivalence to the "Kimble wire" thing (thank you for letting me know of it) might be classified as a "not invented here" syndrome. Sometimes it is better not commenting when you have nothing interesting and/or new to add.
I am clearly sharing my personal experience, I do not announce any 'truth' and if I ever appeared too "front row kid" I apologize.
ecc230
"AND actual sonic ambient signatures instead of the massive "bla-bla-bla" about subjective impressions... But I know that I am condemned to remain alone in this apparently impossible quest.You didn't ever try what I did, did you?
It seems to me that nobody is curious anymore...."
Your words.
To paraphrase the above, you called people who do don't try your idea non-curious.
I showed how I measure the system, and told you I have run electrical output analysis analysis on my components, however, you do not find that and acceptable form of curiosity. Whatever.
As for any human communication our discussion confirms that it is always a four way communication.
Right and left brain emispheres of subject A vs. right and left brain emispheres of subject B.
Our right emispheres (the primitive and instinctive part of our brains) started to fight each other but I believe that the left emispheres will certainly overcome this drawback over time and that they will take again control.
Whatever you believe in creationism or in the theory of "mitochondrial Eve" we are (as humans) what we are and we have to live with this fact of life.
You too have fun with DIY.
ecc230
Short messages have very little context and very little ability to indicate tone.
Instead of making your assertions wth what could be easily interpreted as an insult "nobody is curious anymore....", you could make a more effective communication using a more objective format:
Problem statement
Solution Proposal
Assessment
Conclusion
In your case, it would be:
I am trying to develop an electrical testing approach that can be correlated to listening results.
I have used a testing procedure that I find interesting and possibly helpful comparing electrical output level (with) the ultimate ambient sonic signature.
The analysis may be helpful, but I can not find the ambient sonic signature that is visible in the electrical output graph.
I would be interested in getting others to try this approach to see if there is some correlation from measurement to sound.
Too many people like this in the world I'm afraid, once you veer off there belief systems they start to have real problems because they cannot relate or communicate.
I posted awhile ago about SE amplifiers cancelling out harmonic distortion not my idea or thoughts it was someone else on DIY audio forum
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