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Learning more about the science of sound - Page 2

post #16 of 395
Quote:
Originally Posted by HeadFiend View Post


Oh, I'm sorry. I meant that you can talk about science all day to some people, what's audible and what's not, what they're supposed to hear and what they're not, they won't believe any of it.

Double blind tests anybody? Unless somebody is stubborn enough to say a double blind test is rigged from the start.... confused_face(1).gif

post #17 of 395

That's why we have listening tests. If people refuse to do such tests you know what's going on..

 

edit: uchihaitachi beat me to it


Edited by xnor - 2/26/13 at 8:59am
post #18 of 395
Quote:

Originally Posted by uchihaitachi View Post

I am always slightly careful when I see portable players that are in excess of 1000 dollars and the hype surround some of these exorbitantly priced players. What differentiates say a Sansa Clip + and an Altmann Terra Player that audiophiles claim that there is such a huge chasm in the SQ difference (or can most of this be attributed to perception bias and so on)?

 

There are so many brands and models of audio gear I don't even try to keep up with specific products. But in the grand scheme of things, all that matters for SQ are the standard parameters: frequency response, distortion, and noise. If the response is flat enough, and the distortion and noise are too low to hear, then the device is audibly transparent. All transparent devices sound the same whether they cost $50 or $5,000.

 

Quote:

Originally Posted by uchihaitachi View Post

So does this mean that the sound quality of a portable player is mainly dependent upon the built-in amp (given the DAC is decent enough quality) or is there another important factor that determines how great a portable player is?

 

I'm not up on portable player models either. biggrin.gif But again, the standard metrics for assessing fidelity will tell you everything you need to know. Not that all manufacturers publish all the relevant specs! But that's where I'd stat when deciding what to buy.

 

--Ethan

post #19 of 395
I have read that the clip+ which is very cheap graphs better than a thousand dollar hifiman. Then the rest is up to perception bias? Wow!
post #20 of 395
Mr Winer would your aofrementioned book cover all these areas? I have it on my Amazon wishlist at present. smily_headphones1.gif
post #21 of 395

Also http://www.amazon.co.uk/FPUK-Metre-3-5mm-Stereo-Cable/dp/B001D8I668/ref=sr_1_2?ie=UTF8&qid=1361926597&sr=8-2

 

would this product be more or less the same as a x1000 price product?

post #22 of 395
Quote:
Originally Posted by uchihaitachi View Post

Mr Winer would your aofrementioned book cover all these areas? I have it on my Amazon wishlist at present. smily_headphones1.gif

Yes, my book goes over this stuff in great detail. That's one of the unique features of my book. It explains topics that other authors either ignore, or don't understand enough to write about.

--Ethan
post #23 of 395
Quote:
Originally Posted by uchihaitachi View Post

Also http://www.amazon.co.uk/FPUK-Metre-3-5mm-Stereo-Cable/dp/B001D8I668/ref=sr_1_2?ie=UTF8&qid=1361926597&sr=8-2
would this product be more or less the same as a x1000 price product?

Yes, I certainly would expect it to be just as good. Unless it's defective.

--Ethan
post #24 of 395

Just ordered your book :D

post #25 of 395

Mr Winer,

 

For an industry expert like yourself, would the sound quality of a source be determined by the lack of coloration in the sound signal (the purity?)?

Whereas for many audiophiles, some are avid about certain products that at first sound impressive due to a artificially added coloration or unique EQ'ing? 

post #26 of 395

There's a reason the ideal amp is also described as "wire with gain". No linear (frequency response) or nonlinear (THD, IMD ..) distortion, no added noise etc..

This also applies to D/A converters, even headphones.

post #27 of 395

Would such a sound be appealing to most people or not?

post #28 of 395

Also with regards to cables, http://www.head-fi.org/t/651509/review-effect-audio-custom-cables 

 

This review rambles on about how sub bass extends, this cable speeds stuff up etc etc. Being as frank as possible, does this mean all this is complete down to placebo and perception bias?

post #29 of 395
Quote:
Originally Posted by uchihaitachi View Post

This review rambles on about how sub bass extends, this cable speeds stuff up etc etc. Being as frank as possible, does this mean all this is complete down to placebo and perception bias?

 

For the most part, yes. There are likely small audible differences, but they are not caused by the cable itself. Whenever a cable is swapped, the headphones or IEMs have to be taken off. Small differences in their position when they are put back on can cause significant differences in frequency response. How much is dependant on the headphone. IEMs are typically very consistent if inserted properly, so the differences would be minimal. Headphones, however, often deviate 2dB or more, especially in the bass and treble reigons (look at the raw data in the InnerFidelity datasheets). This may explain some of the differences heard between cables and other placebo tweaks.

post #30 of 395
Quote:
Originally Posted by bluepumpkin View Post

 

For the most part, yes. There are likely small audible differences, but they are not caused by the cable itself. Whenever a cable is swapped, the headphones or IEMs have to be taken off. Small differences in their position when they are put back on can cause significant differences in frequency response. How much is dependant on the headphone. IEMs are typically very consistent if inserted properly, so the differences would be minimal. Headphones, however, often deviate 2dB or more, especially in the bass and treble reigons (look at the raw data in the InnerFidelity datasheets). This may explain some of the differences heard between cables and other placebo tweaks.

Very informative thank you! Now knowing this, reading cable reviews for different IEMs, it is a very peculiar feeling...... (facepalm)

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