Is it time for a new Harmon Curve survey?

Dec 10, 2024 at 8:52 AM Post #91 of 149
I wrote "Beats by Dre" on my Etymotics with a pen and now they are bass cannons!
This is absolutely true though, and it took me a decade to overcome the quality/price bias. It doesn't help that this gets reinforced by pretty much every audio reviewer that talks rubbish like technicalities as if it was a magical property outside the tuning.
I rely on painting my cables red if I want more bass. Red is how animals in nature signal other animals that they're killers on the dance floor.

I’m not sure if you’ve seen Sean Olive’s convention paper from just over a month ago (link here or see the edit below), where he did in fact identify two “stable preference groups”, which he calls “Class 1 and Class 2 listeners”, where the data indicates the differentiator to be age. This correlates well with his previous study in 2019 (ASA article linked here), which indicates 3 classes of listeners and therefore 3 curves, that are accommodated through a simple bass adjustment.
Thanks, I read your response and thought I did not know about any of it, then opened the papers and remember I not only read them, I have them saved on my PC...
I don't have one genuine thought, only stolen ideas I forget just enough to feel like they're mine.
 
Dec 10, 2024 at 10:28 AM Post #93 of 149
It isn’t just reviewers, it seems to me like about 90% of the folks that frequent the threads outside of Sound Science have a wildly distorted view of the (lack of) importance of just about every aspect of headphone and IEM audio outside of transducer tuning.

Apparently, based on swathes of comments by others, every aspect of everything used in the audio chain makes an audible difference to sound even down to a few micron thick layer of Rhodium on a plug.

I have come to the conclusion after hanging around HF for a couple of years and also doing my best to actually identify what matters (transducers) and what doesn’t (just about everything else) that either most “audiophiles” have next to no clue about what makes a genuine and worthwhile audible difference or my hearing is so poor that I am in the lowest 10 percentile in that respect and the other guys making the comments must be hearing their music in ultra vivid clarity and detail compared to me.
You're absolutely correct and it's refreshing to see as someone who came to this conclusion the better part of 15 years ago. The online audiophile community is a pile of confirmation bias and self-censoring because those companies selling the comically overpriced garbage also pay the bills for these communities.
 
Dec 10, 2024 at 12:27 PM Post #94 of 149
Expensive stuff is often built to last and usually looks miles better, just might not sound better.

Buy cheap, buy twice :relaxed:

Sorry but I rather buy twice a $10-25 cable or even 5 times than buy a $500-2,000 once, the resulting sound is the same.
Same goes for DACs, AMPs, IEMs and headphones if the electronics measure transparent and the headphones/IEMs are tuned close to my preference and have low distortion (the rest can be EQed) besides there is a lot cheap gear that is better built (and measures better) than expensive one this is the audiophile market after all.
As for looks that is more of a personal thing I prefer the looks of some cheap IEMs than the tacky (for me) designs of some of the expensive ones, for electronics I don't care about the looks (again is just me YMMV).

I learned my lesson some time ago with expensive ($1,000) IEMs, never again, as I said a well tuned (well as in close to my preference) low distortion one is all I need. There are also the lessons learned with home equipment and I have to admit I should have known better when I started with "portable" equipment.
 
Dec 10, 2024 at 12:32 PM Post #95 of 149
Sorry but I rather buy twice a $10-25 cable or even 5 times than buy a $500-2,000 once, the resulting sound is the same.
Same goes for DACs, AMPs, IEMs and headphones if the electronics measure transparent and the headphones/IEMs are tuned close to my preference and have low distortion (the rest can be EQed) besides there is a lot cheap gear that is better built (and measures better) than expensive one this is the audiophile market after all.
As for looks that is more of a personal thing I prefer the looks of some cheap IEMs than the tacky (for me) designs of some of the expensive ones, for electronics I don't care about the looks (again is just me YMMV).

I learned my lesson some time ago with expensive ($1,000) IEMs, never again, as I said a well tuned (well as in close to my preference) low distortion one is all I need. There are also the lessons learned with home equipment and I have to admit I should have known better when I started with "portable" equipment.
I’ll go with the buy once, I have. My dac and hp are almost 10 years and happy as can be, if I’d known and had the cash I’d buy wa33 elite in 2017, but alas another keeper, like my server that’s been upgraded, and every cable, usb, and interconnect. Buy well buy once is my motto. Works no regrets.
 
Dec 10, 2024 at 12:45 PM Post #96 of 149
I learned my lesson some time ago with expensive ($1,000) IEMs, never again, as I said a well tuned (well as in close to my preference) low distortion one is all I need. There are also the lessons learned with home equipment and I have to admit I should have known better when I started with "portable" equipment.

All my expensive iem's sound better than ones costing under $500 especially - which I bought because they were hyped - and they're good but only compared to ones similarly priced (in the main) the exception being S12 2024's which are incredible value imo. I hardly use some now as they're not as smooth sounding, detailed, have large soundstage or have as clear instrument separation/placement - they would be good as daily 'beaters' only.
 
Dec 10, 2024 at 1:16 PM Post #97 of 149
You haven't been paying attention. I have said over and over that accuracy and fidelity is the baseline. You get as close to that as you can, and then you add coloration like salt and pepper using equalization and DSPs.
Pardon me, that's fine.
Yes, Harman is a preference curve. It's a good starting point for finding your own preferred curve. A headphone company that shoots for that will end up pleasing most (but not all) people.

I haven't enjoyed explaining anything to Amir, and he hasn't enjoyed his interactions with me. That's why he left Sound Science and launched his own forum where he could create his own narrative.
Agreed and interesting.
Speakers? No, because the room is at least half of the sound and there's always compromises to be made there.

Headphones? Yes, it will sound as close as dammit. There's no way to test for that though because you can't A/B headphones. But more importantly, can headphones be EQed to an individual's preferred response curve? Yep! And only you can determine your personal preference. I can't dictate that for you.

I can't figure out why you're arguing with me. We don't seem to be that far apart. Maybe you are just biased against anything I say.
Me neither, I made the assumption that I was dealing with someone on the strict objective camp. Again, my bad.
 
Dec 10, 2024 at 1:23 PM Post #99 of 149
The experience is never going to be the same, they could have the exact same sound at your eardrum(not just FR) and your brain would still be impacted by brand price, look, comfort/weight, amount of outside noise attenuation, and whatever it is you expect from each headphone. Same for concert VS headphone or speaker playback, BTW.
You're right, but with a false argument because you probably never heard 2 headphones with the same FR at your eardrum(which can be quite different from them matching fairly well on a FR graph using a dummy head).
The only portion of that argument that's entirely right, based on sound alone, is how the distortions usually remain high enough to be audible somewhere(not just THD). But I would bet those are peanuts compared to the perception of everything else I mentioned above.
Headphones can be AB'd. Same pads, same headband, and head reclined so that the weight differential wouldn't be notable.

I have worked on getting the my HE-500 and HE-6 SE to have the same curve at the ear. Certainly they sound more alike in that mode than with no PEQ, but still easily told apart. My HD-600 can't be masked in the same way, and for sure would be quite different - for many factors beyond FR/HD certainly.
 
Dec 10, 2024 at 1:34 PM Post #100 of 149
Too bad the thread devolved into personal attacks having nothing to do with the Harmon curve.

How many people commenting here actually EQ their headphone playback? How many have used the AutoEQ site to actually EQ their headphones to a measured Harmon curve? And of those, how many find fault with what they are then hearing and change the settings further to get a more accurate to real life sound? Or, switch off the EQ as sounding worse than no EQ to an exact Harmon curve as I did?

I find that with my HiFiMan HE1000SE headphones that when EQed to the Harmon curve that there is way too much bass. Even after I cut the prescribed boost settings in half. And the highs are rolled off. And the lower mids are too prominent, leading to a muddy sound.

I would hope that if you have never EQed your headphones, that you would refrain from commenting.

Those that have actually EQed their headphones to the Harmon curve according to measurements from the AutoEQ site, and Preferred the new sound as it is, or altered the settings, or turned the new EQ right back off as I did, I would be happy to hear your experience.

https://autoeq.app/
 
Dec 10, 2024 at 1:55 PM Post #101 of 149
Why would a pro acoustic musician or an audiophile with lots of acoustic experience make any difference? Speakers and HPs reproduce recordings, not acoustic experiences! And, many people are “bass heads” and/or have relatively little acoustic music experience, why should this significant demographic be excluded from an average human preference just because it’s not the same demographic as you?
Ummm because its more likely I know what an oboe should sound like on a very good recording more than a bass head that listens to EDM only. I am not interested in suppressing the opinions of others per se, however, I believe the sub sets I have identified are likely to yield results closer to what my perceptions are than a wad.
Are bass heads and those with little acoustic music experience not human or are you just effectively stating that you think organisations, researchers, etc., should produce target curves just for you and screw everyone else?
Oh please. Trying to suck me into a straw man argument..... I posit that different self identified sub groups would end up with different results. I would place more trust in the ones I specified, but, I would still verify by ear the accuracy of the settings.
And how would someone who has “heard say the BSO be trusted to know how that should sound like” when they are listening to a recording where the “sound” is significantly different?
The subject of music, recordings, and playback has not been specified, so that's an open question. There was a thread on HF last year about "great recordings" and a rather large percentage mentioned Steely Dan "Aja". Each instrument played was played separately, with multi mikes, then mixed, etc. While it is a good example of 'modern' recording of pop music - its not live, it is amplified. Not my reference. I'd be looking at 3 ribbon mike recordings of acoustic music played in a good hall with minimal post processing as being more accurate.
How the BSO “should sound like”, depends on the piece they’re playing, the venue in which they’re playing it
The Hall is the same (basically), of course the players and composer are different. Still a higher level of accuracy than Led Zeppelin in sports arena.
the listener’s location in that venue, the musicians’ and conductor’s interpretation that day and in addition, a recording will also vary depending on how it was mic’ed and the other subjective choices of the engineers, producer and in some cases the conductor again. Experience of acoustic music will tell you nothing or next to nothing about any of these determining variables!
I'm thinking about recordings from the mid 50's to late 60's, then then the audiophile recordings from labels such as Sheffield, Chesky, RR, etc. as representing the better rendering of music available.
I’m not sure if you’ve seen Sean Olive’s convention paper from just over a month ago (link here or see the edit below), where he did in fact identify two “stable preference groups”, which he calls “Class 1 and Class 2 listeners”, where the data indicates the differentiator to be age. This correlates well with his previous study in 2019 (ASA article linked here), which indicates 3 classes of listeners and therefore 3 curves, that are accommodated through a simple bass adjustment.
Have not read it. Age is a factor obviously.
And yet this thread demonstrates the exact opposite! Here, those who “care about objective information” are stating it’s a guideline/starting point, while others are mischaracterising it as wrong because it’s an exact target (that doesn’t match their preference).
Its not either/or. Its a preference measurement - that appears to work for many. In the forms I have sampled it. I do not accept the results as acceptable as is.
Huh? “What’s on the recording is what I want to hear” too, which is precisely why I use PEQ! I do not want to hear the effects of my speakers with the room modes of my sitting room mangling the artists’ intent, nor the effects of headphone tuning, hence why I use PEQ. Your stated preference is apparently to hear the artists intent mangled by room acoustics or headphone interaction/tuning and then falsely claim you want to hear what’s on the recording?!
Nonsense. I use PEQ, I have room treatments/tuning (my current room/ required placement of speakers) has lots of issues in the 80-130 Hz area in particular with my new speakers (5 weeks old), which I will be borrowing equipment to analyize so I can address it.
That’s a shame because it means you pretty much never get to experience what you prefer. I on the other hand prefer “it to start and stop as it was” mixed, mastered and intended. You seem to be contradicting yourself, above you stated you don’t want to “have the artists intent mangled” and now you’re stating you prefer “it to start and stop as recorded” and therefore do want the artists’ intent mangled?!
The contradiction appears to be you ascribing things to me I didn't specify or opine.
 
Dec 10, 2024 at 1:59 PM Post #102 of 149
Too bad the thread devolved into personal attacks having nothing to do with the Harmon curve.

How many people commenting here actually EQ their headphone playback?
I have and do.
How many have used the AutoEQ site to actually EQ their headphones to a measured Harmon curve?
No PC used in my chain.
And of those, how many find fault with what they are then hearing and change the settings further to get a more accurate to real life sound? Or, switch off the EQ as sounding worse than no EQ to an exact Harmon curve as I did?
Change the PEQ until it is most correct for my most used reference pieces.
I find that with my HiFiMan HE1000SE headphones that when EQed to the Harmon curve that there is way too much bass.
Similar for me.
Even after I cut the prescribed boost settings in half. And the highs are rolled off. And the lower mids are too prominent, leading to a muddy sound.

I would hope that if you have never EQed your headphones, that you would refrain from commenting.

Those that have actually EQed their headphones to the Harmon curve according to measurements from the AutoEQ site, and Preferred the new sound as it is, or altered the settings, or turned the new EQ right back off as I did, I would be happy to hear your experience.

https://autoeq.app/
 
Dec 10, 2024 at 2:23 PM Post #103 of 149
How many have used the AutoEQ site to actually EQ their headphones to a measured Harmon curve? And of those, how many find fault with what they are then hearing and change the settings further to get a more accurate to real life sound? Or, switch off the EQ as sounding worse than no EQ to an exact Harmon curve as I did?
I think this has been explained to you numerous times. AutoEQ can not eq your headphones to "an exact Harmon curve". It scrapes measurement data from the internet, looks for the difference between the measurement data and the target, then and inverts the difference. Can you see how this is not anywhere near the same as EQing a headphone to the Harman target?

Besides that, even if you somehow managed to EQ your headphones accurately, it's not like Mr.Harman, the man himself promised everyone personally that they are going to find the new sound amazing. And I promise you he does not go around looking for people who reduce the holy bass shelf to hurt them either. The research actually says that most people over 50 will not find their target appealing. This alone basically guarantees that most head-fi members should use a different target curve than the Harman one.

I feel like you are implying that the harman target is somehow not accurate because they didn't have enough listeners and they were not audiophile enough and also because it sounds bad to you so these oversights should be corrected. What I'm trying to say is that the research is perfectly fine for what it is, you just have to understand what it is.

I EQ my headphones but not through HQPlayer and AutoEQ, not that I think this adds or detracts from anything I have to say about the topic.
 
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Dec 10, 2024 at 2:28 PM Post #104 of 149
I tried over a half dozen eq presets for hd800S in roon, yuck. Like I want smoothed out veiled dynamic headphones. I find with my music server and Phoenix, I’m right down the pipe for enjoyable endless listening, straight up.
 
Dec 10, 2024 at 3:48 PM Post #105 of 149
I think this has been explained to you numerous times. AutoEQ can not eq your headphones to "an exact Harmon curve". It scrapes measurement data from the internet, looks for the difference between the measurement data and the target, then and inverts the difference. Can you see how this is not anywhere near the same as EQing a headphone to the Harman target?
...
I EQ my headphones but not through HQPlayer and AutoEQ, not that I think this adds or detracts from anything I have to say about the topic.
I have to admit that this has been puzzling me in this thread;

To those who have EQ-ed their headphones to the Harman curve (or any other preferred curve for that matter): how do you do that to any vague degree of accuracy without access to a calibrated head microphone/artificial ear? Or do some of you have access to a treasure trove of B&K sound measurement and calibration equipment?

I could be wrong but doing it by ear would seem to me to be as inaccurate as calibrating a monitor by eye; e.g. Apple's Display Calibrator Assistant (or Adobe Gamma in the old days) can be of help there but it is no substitute whatsoever for a proper monitor colorimeter; I imagine the same would apply to calibrating a frequency response for headphones by ear instead of using an artificial head microphone.

I tried over a half dozen eq presets for hd800S in roon, yuck. Like I want smoothed out veiled dynamic headphones. I find with my music server and Phoenix, I’m right down the pipe for enjoyable endless listening, straight up.
Same here, just using my selected headphones as is. Picking a sound character I like is what I do when I audition the headphones prior to buying; then I let brain burn-in do the rest.
 

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