Newbie Testing question

T

Trebdp83

Audioholic Spartan
Hi all,
Been lurking for years. I searched but could not find anything so maybe you can point me or provide insight. If I were to wish to do some critical listening (192 kpbs vs CD), I am wondering if I'd be better served by headphones or speakers? I know the room is less than perfect but really am wondering which is a better plan (or maybe neither will have the build quality to reveal anything?). My system is Yamaha RX-A4A, Goldenear Triton 3+, and grado SR-60. (Soon to get a Hypex amp from Buckey but not yet!). Also it'll be served by a Bluesound Nano sending ripped FLAC files and MP3's saved to an external disc.
Is this system up to resolving the music enough to discern? What to use? Speakers or headphones in general and in my case?
THANKS for any thoughts!
Not going to go into the hi-res vs CD quality argument as it is a waste of everybody’s time but I will ask about speaker connection, configuration and sound modes used.

The Triton Three+ have built in powered subwoofers. Are you running them as Large with only a connection to them using Front speaker terminals? Using a selected crossover and subwoofer pre out to Triton LFE line IN? Extra Bass in Yamaha ON or OFF?

How are the speakers placed in the room? Distance from back wall? Distance from each side wall? Distance from each other? Distance from main listening position? Pure Direct mode or Straight mode selected for music using speakers? Silent Cinema selected for headphones?

How will the Bluesound Nano be connected to the Yamaha? Analog or Digital connection? Have you setup the MusicCast app in a Smart device for your Yamaha RX-A4A after connecting the receiver to your network? Have you considered streaming directly to it from a network server rather than connecting an additional device such as the Nano to the Yamaha?
 
jinjuku

jinjuku

Moderator
I like both speakers and H.P.'s If for critical evaluation I think it would be headphones as they have a lower distortion profile and no room interaction.
 
m. zillch

m. zillch

Junior Audioholic
Some marketers such as 2L took down their Hi-res download test bench page, I believe, once they saw individuals like me exposing the public to how to easily use the files* to conduct valid, proper double blind, level matched, synchronized, statistically analyzed tests such as with the free Foobar component "ABX"
They took it down years ago but there are still snapshots on the wayback machine (internet archive) which seem to have at least some functionality, I think, where one can find cuts to download. Not sure if these work, but here. The pages look different, not sure why, but look for the play arrow at the bottom of each of these links:

CD 44.1/16-bit res

192kHz/24-bit res

The reason track 2L-053-04,
Joseph Haydn: String Quartet In D, Op. 76, No. 5 - Finale - Presto, Engegård Quartet,
is the most important cut in my mind is because it was also used in a dubious JAES paper by one of the Hi-Res promulgators. Could he locate any individual who could hear the distinction on his chosen cut? NO, not even one.* However he pushes that after testing dozens of people he added up all their scores and instead of 50% correct answers and 50% wrong (so no audible difference could be demonstrated) he found that their combined scores were 53% correct and 47% wrong. When dealing with this large a number of responses that does indeed technically meet traditional statistical significance. But think about it for a minute in terms of "meaningful significance" to an audiophile. . . .

Joe: "Wow, I just bought a new Hi-res player and test track. It's amazing!"
Friend: "Cool. So I guess you can hear the difference against CD quality. Right?"
Joe: "Um, me personally? No. About half the time I guess right and about half the time I get it wrong."
Friend: "Oh, well I guess you mean other people in your family can hear it. Right?"
Joe: "Well, no, not really."
Friend: "So how many people did you have to test to find a person who could hear it?"
Joe: "Um, I, um. . . I haven't actually found anyone who can hear it on their own."
Friend: "So why are you stating it is 'amazing' then?!"
Joe: "Because after testing 100 audiophiles I know, using $80,000 speakers, giving them 10 questions each and then combining all their responses together, they successfully got 530 answers correct and 470 wrong."

Yikes. That's a valid reason to buy something?! Not in my book!

*Can you see why for the JAES Hi-res author/promoter it would be in his and his company's best interest to not claim he found anyone? Because if he had then other scientists would want to contact that individual to do further testing and see if they could replicate the results. His solution?

No individual = no further scrutiny can occur. Case closed.

He also used other steps to ensure no further examinations could occur. He heavily stressed in the paper the fact that the gear he used to test the listeners had to be extremely good. [Technically, he never actually ran the tests also on lesser gear, as far as I can tell, so this was really just conjecture on his part.] The loudspeakers alone were $80,000, at least in their "special edition" version (if I recall correctly) and most other audio researchers don't have such speakers on hand. So any attempt to replicate his findings which failed to do so, using only say $70,000 speakers, he could easily dismiss with: "Well they used junky gear and I warned them not to!".

There were numerous other questionable things about the paper which I am omitting for brevity.
 
Last edited:
P

PENG

Audioholic Slumlord
Hi all,
Been lurking for years. I searched but could not find anything so maybe you can point me or provide insight. If I were to wish to do some critical listening (192 kpbs vs CD), I am wondering if I'd be better served by headphones or speakers? I know the room is less than perfect but really am wondering which is a better plan (or maybe neither will have the build quality to reveal anything?). My system is Yamaha RX-A4A, Goldenear Triton 3+, and grado SR-60. (Soon to get a Hypex amp from Buckey but not yet!). Also it'll be served by a Bluesound Nano sending ripped FLAC files and MP3's saved to an external disc.
Is this system up to resolving the music enough to discern? What to use? Speakers or headphones in general and in my case?
THANKS for any thoughts!
The RX-A4A, based on its predecessors use of a decent opa buffer for the headphone output, I would say your best bet would be to use a high quality headphone. Otherwise, the amp section of those lower mid range AVRs probably would be your bottleneck.
 
P

PENG

Audioholic Slumlord
Thanks guys, seems like my gear may not be the issue. I was under the semi-educated assumption that humans can't tell CD from Hi Res and may not be able to tell 320 from CD... but I was assuming 192 vs CD would be discernable.
That is mostly correct though.

I can tell 128 from CD as I did test that a few years ago. Really I was just wondering if folks are getting better results with headphones vs speakers when doing such things.
Unless you did it blind, you really couldn't be sure if you in fact can tell the difference between those two, assuming they are made from the same master. Keep in mind, sighted listening comparison test results are very unreliable even if 100% level matched.

My headphones would also use my AVR, so not much would change there.... and yes, my Yamaha has "Pure direct" where it bypasses the DSP and "some" circuitry is "suspended".
I feel like my (Retail) $3k speakers would outperform my $75 Grados, but in listening the headphones are decent and it surprised me a little.
High quality headphones would be the better of the two, with speakers, there would be more variables, such as head/ear positions may not be maintained exactly the same, ambient noise, etc. The RX-A4A may or may not be a good match for the Triton 3 plus, depending on other factors.
 
P

PENG

Audioholic Slumlord
You've got me confused. "Is this system up to resolving the music enough to discern? What to use? Speakers or headphones in general and in my case? THANKS for any thoughts! " was posted by @JSF737, not by me.

"Now that you have clarified the premise is "subjective"",..." ? A premise is a statement taken as being true from which other ideas can be inferred. I don't understand. My methodology was subjective. Is that what you meant?

In my first post I stated, "As a "test" for my own personal edification, I believe this approach was sound (pun intended...I taught 6th grade)."
The word "test" was in quotes, an indication that I am well aware that my methodology was not statistically nor scientifically valid and would yield no real world benefits.
"...for my own personal edification..." was my way of acknowledging that my methodology would only reveal subjective results.
"I believe this approach was sound (pun intended...I taught 6th grade)." was an attempt to entertain and keep the mood light. Obviously a miscalculation.



I understand. I assumed @JSF737 would want to directly compare one file format to another.
Sorry I got two posts mixed up. I deleted it but didn’t realize you had already read it.
 
newsletter

  • RBHsound.com
  • BlueJeansCable.com
  • SVS Sound Subwoofers
  • Experience the Martin Logan Montis
Top