Did Amir Change Your Mind About Anything?


It’s easy to make snide remarks like “yes- I do the opposite of what he says.”  And in some respects I agree, but if you do that, this is just going to be taken down. So I’m asking a serious question. Has ASR actually changed your opinion on anything?  For me, I would say 2 things. I am a conservatory-trained musician and I do trust my ears. But ASR has reminded me to double check my opinions on a piece of gear to make sure I’m not imagining improvements. Not to get into double blind testing, but just to keep in mind that the brain can be fooled and make doubly sure that I’m hearing what I think I’m hearing. The second is power conditioning. I went from an expensive box back to my wiremold and I really don’t think I can hear a difference. I think that now that I understand the engineering behind AC use in an audio component, I am not convinced that power conditioning affects the component output. I think. 
So please resist the urge to pile on. I think this could be a worthwhile discussion if that’s possible anymore. I hope it is. 

chayro

@mahgister 

I make appeal to this ecological theory because you criticized all audiophiles TOGETHER in a single block as being ALL wrong because they supposed that "musicality" exist in some design when they listened to it even if the design do not correspond with your limited set of linear measures 

I don't criticize people.  I measure audio equipment and if I see problems in it, I report.  If you are going to dispute that, then you need to come forward with either your own measurements to the contrary or controlled listening tests.  Take this page of your favorite designer's product:

It says "distortion minimized for human hearing."  Where is the proof of that?  A manufacturer can just say it and it becomes true? 

It has a bunch of simple numbers in there.  What are the conditions under which they were measured?  It produces 75 watts at what distortion?  What is the level of noise?  Here is how I show power:

You see how informative that is compared to his one number?

What you see there is pure marketing fluff.  It is not remotely useful to make a purchase decision.  Not on objective or subjective basis.

@mahgister 

Tone sine waves are used by all designers.. they are part of the design process.. . The ultimate test is by musical real music...

Nope.  Again, he said that the tone burst clearly shows the audible difference:

"To that end, two high-quality amplifiers with clear differences in their perceived sound, have been tested with tone-bursts. In this report, only the results at 30 Hz will be reported and discussed, as at these low frequencies the issues show more clearly."

I like to know why he can test two amplifiers with test tones and declare audible superiority of one over the other just as he is doing.  Please answer that.

@mahgister 

Thats my point suggesting an ecological theory of hearings qwith not only Magnasco and Oppenheim but many other researcher in acoustic....

I don't care about many others not cited or any ecological "theory."  We care about reality of how to determine audible performance of an amplifier to make purchase decisions.  Your own expert witness is using test tones to do that.  In both papers,.  Yet you say we shouldn't.  

I apologize Amir but i dont understand, precise your question..

Thanks

@mahgister 

In a word we must train and trust our ears... Measuring is not enough...

Do you agree if such a test doesn't exist, or that it used more than the ears, the claims are invalid?

 

Are you kidding me?

the testing of the design oprocess included Real musical burst and sine wave... All designer use Fourier tools.. I dont understand your point... you seems desesperate to put me in a box with a contradiction..

I am not the expert on design... But all designer Use Fourier tools... There is NO AUDIO DEESIGN WITHOUT FOURIER TOOLS...

but hearing theory is impossible to understand with only Fourier tools and theory..We need other more ecological approach because sound phenomenon CANNOT BE RECONSTRUCTED as the ears produce them with ONLY FOURIER TOOLS...

I say WE SHOULD NOT USE ONLY FOURIER TOLLS AND SINE WAVE AND TONE BUT ALSO REAL MUSIC AND LISTENING AS  ESSENTIAL PART OF THE DESIGN...

You want to put in my mouth an absurdities...Fourier theory is essential to design... No designer can trash it..

You are not able to contradict me about hearing theory and then you resort to absurdities and put them in my mouth ..

😊

only an idiot will say that Fourier theory is useless in design... But Van Maanen use real musical test and his psycho-acoustic knowledge and LISTENING as essential... Thats my point

 

 

Is it diffucult to understand ?