#audio-tech
1 messages · Page 172 of 1
That isn't what it means. The phase response of a headphone will not be flat. Minimum phase just means that there is no ADDITIONAL phase discrepancy other than what is implied by the deviations from a flat frequency response.
Any non-flat frequency response will have a non-flat phase response. This is true for a headphone, a speaker, EQ etc.
The only time this won't be the case is if you're doing separate phase manipulation in the digital domain to alter phase without altering FR
Changing the FR inherently changes the phase response
I'm really not sure what you're meaning by this, and given how our previous discussions have gone, I'd ask that you not repeat claims like this without providing evidence
But thats his modus operandi
But yeah, to put it simply, ILD and ITD is not really a thing in headphones. That's all down to the content you're playing.
What matters in headphones for the sense of spaciousness and perceived soundstage is how the tuning relates to / matches your HRTF
HRTFs have become a common topic of discussion since Headphones.com incorporated the B&K 5128 into our roster of measurement fixtures—but some still aren't sure what HRTFs are or why we're using them. Join listener as they break down the reasons why we choose to calibrate measurements using the Diffuse Field HRTF.
I'd recommend reading this
lets say at 1khz our headphone is 90% resistive and 10% reactive from inductance. Now lets say at 500hz it is 95% resistive and 10% inductively reactive. Will we expect it to lead more with one signal than another?
This is where damping factor from the amplifier comes in, and is why headphones with a varying impedance curve WILL change in sound when run on a high output impedance amplifier, you'll get a boost wherever the impedance is higher.
But these are still minimum phase effects, so whilst you do see a change in the phase response, you also see a change in the frequency response and either the result on a low output impedance amp or high output impedance amp is still minimum phase at the end
now lets say that 500hz is playing in the left channel and 1khz in the right channel (In reality we will have a much more complex mix of inputs). If we expect the amount of lead to change between these two frequencies, ITD inherently also changed here by that change in phase.
We would yes, and this would be represented in the phase response of the headphone. Which as described and shown above, will still yield a minimum phase response
again minimum phase does NOT mean no phase deviation
minimum phase or not isnt related here, Minimum phase does not imply no change in lead or lag.
But wouldnt ild and itd only apply if its the same signal
yes it does
Again, PLEASE, I am begging you, provide evidence for your claims
This stuff really is trivial to test even with free software like REW
you don't need to buy an APx500 or anything
you can do it yourself if you don't believe any of the measurements available from others
No, the opposite. The device will only impact them if there different unless you have a different device on each ear or channel.
because the signal is different between the channels, the system design changes the amount of time and level difference we will see compared to what we want to see based on the initial signal from our recording.
the proof is in how we would calculate the phase at a given frequency and how we woud calculate the reactance at a given frequency
Idk what youre talking about but in my understanding/assumption of what ild and itd it is how the same signal is presented differently between ears
Differently in time and level
X_L is 2pifL off memory with f being frequency and L being our inductance
so our inductive reactance is frequency dependent
then to find out phase angle we would take arctan of X_L/R
But also I think there's a bit of a misunderstanding here.
Our hearing doesn't detect distance/direction well at all based on the difference in ILD or ITD between two DIFFERENT frequencies, but for the SAME frequency.
If you have a 500hz sound in one ear and a 5khz sound in the other you won't get any sort of directional cue from that. You'll just hear two different sounds.
The sound needs to be within the same critical band for your auditory system to get directional cues from it.
And whilst some of that ILD/ITD comes from the inherent fact that a sound on your left will be outright louder in your left ear than it will in your right ear, the majority of this comes from the way in which your ear modifies sound depending on direction.
You can see here the frequency response at the eardrum is massively different depending on the direction the sound is coming from. Your brain 'tonally' filters these differences out, stuff sounds broadly the same in terms of 'tuning' regardless of direction but then provides clear directional cues based on the actual SPL differences
so what that X_L is changes the angle
which changes the amount of lead
and that is frequency dependent
this applies if our system be minimum phase or not
because this applies if we ignore or acknowledge that initial loading inverse movement of a driver
Again....you're making a lot of assumptions/assertions that do not at all align with how these devices can be EASILY shown to work in practice.
Please look at available resources, or just test it for yourself.
its not an assumption. Plain and simply, thats the math.
thats how we calculate inductive reactance and the pahase angle in that RL device (the headphone)
R being resistance. I dont thinkg I mentioned that variable earlier
You can proclaim that something should/does work in X way all you like, it doesn't matter if all the evidence shows that not to be true.
I'm unclear whether you're as in the last discussion simply unwilling to look at any existing evidence at all, or if you're misunderstanding the mechanics, or just trolling. But once again, it's not possible to have a discussion if you're simply unwilling to consider literally any evidence at all and so I'll just stop here.
resistance being a constant as it wont change with frequency
Yes it does
You do know who youre talking to right?
I don't mean to be rude, but it's hard to remain all that considerate at this point.
If you are unaware that driver impedance varies vs frequency you've got a fair bit of reading to do
what do you mean here? This is the equation to find phase angle and inductive reactance. To disagree with this is to disagree with how RLC circuit theory as a whole works, and I assume youre not doing that.
If youd like, I could probably find some textbook pages on this same topic
I dont have my old linear circuit book, but I can probably find some other one online or a related article
that is exactly what the equation I described shows. It shows that the reactive portion of impedance is frequency dependant.
which is my point here
No, you're just either not considering or not understanding the full effects of RLC circuits. Perhaps start by looking at existing data and either trying to explain why literally everyone who measures headphones is apparently faking the phase information entirely, or read further and understand why actually you just weren't thinking about the whole thing and it does indeed make sense.
Consider why planar headphones don't change FR or phase when on a high output impedance amp but dynamic drivers do for example, when one of these varies in impedance vs frequency and the other does not. One is an inductive load the other is purely resistive
And yet both are minimum phase
because the device (the headphone or speaker) is not purely resistive, we will expect phase to change with frequency, and as such, the amount of lead or lag changes with frequency. So if 2 drivers play a different frequency, ITD changes between the two in that same relation to a small degree.
Only if you're talking about two DIFFERENT frequencies. Which again then falls outside of what matters for humans in terms of ITD for localisation cues
I'm not saying that two DIFFERENT frequencies will have different phase angles. Of course they will, that's true regardless of whether the device is minimum phase or not so long as it doesn't have literally 0 deg phase variation (which would be impossible without DSP).
But this was already discussed above so I'm not going to re-address that
How about this. I will have a friend of mine who is an EE in the field already take a look at this and maybe he can point out any dicrepancies here? otherwise I'll say the same thing again and we will go full circle. is that a fair ? In the mean time, I'll also look for a linear circuits textbook describing what I described.
Or you could literally just test this with any headphone and see what you get.....
There really is no point discussing what could/should be when you can just see what IS
I can do that too and I will send my results from that like I did before, but youll have to wait for me to take the measurements. However, we shouldnt ever expect the mathematical results to somehow not relate to the real world.
they will always relate, but at times we have more unaccounted for variables.
Of course not, but when your mathematical results DON'T relate to the real world, the answer is almost always that you're just not modelling things correctly, not that there is a magic discrepancy.
I don't think that you're fully considering how inductance relates to impedance here. A dynamic driver (somewhat inductive load) varies in impedance vs frequency but it's not because the copper is suddenly getting more or less pure as it moves.
it has to
imagine a capacitor in series with a resistor
with a lower frequency sent through this circuit, the capacitor will charge and discharge mostly at the rate it's asked by the input signal
it means the relation is a casual and stable relationship
so with headphones, at the start of a load, you get a sort of inverse movement that then catches up (due to chassis loading). That makes them non minimum phase, but if we want to be simplistic we can assume them to be for some ease of life usecases.
with a higher frequency signal, the capacitor is unable to charge and discharge in sync with the signal. it will discharge mostly when the signal is opposite of the voltage in the capacitor
but that relationship is different than the reactive relationship which is frequency dependent.
Looking for some $100 maximum wireless headphones
My dad has some Q30s from Anker right now
Doesn't have a preference
@elder thistle what youre describing is lag. Minimum phase isnt determined by if a signal lags or not
In control theory and signal processing, a linear, time-invariant system is said to be minimum-phase if the system and its inverse are causal and stable.
The most general causal LTI transfer function can be uniquely factored into a series of an all-pass and a minimum phase system. The system function is then the product of the two parts, and in ...
this is why single order filters like lp6 are 90 degrees
yep, you can have a lage amount of lag or lead, but it doesnt determine if a signal is minimum phase or not
if the signal crosses the y axis twice as often as its input for example though, that isnt minimum phase
so minimum phase is unrelated to this topic
you mean frequency doubling or something?
it is an interesting topic I feel most in audio have a bad grasp on for how they try to use it, but its a topic for another day
if you want the "best" Gaming experience with headphones
get some Comfy open back headphones
better would be a quite good Frequency Response. Wouldn't say that it sounds good on your head but its imo easier to have a good solid base FR
also wtf is this discussion again 
everytime i go in this chat i read complete nonsense 
feels like Flatearther vs a person who says facts
in sort, discussion was on if headphones can have a frequency dependent lead or lag
I was look at Iems and I can post the list of ones I was debating between.
I have decided not to get headphones cause I don’t wanna have to worry about hair dents again
what was ur budget?
I’d prefer to stay under 50 cad and an option with a mic
Gate
Truthear Gate
a mathematical representation of this might be if ΔR is delayed by 1ms (per our recording) from ΔL and ΔR is a 500Hz impulse while ΔL is a 1000Hz, would we expect the a lead or lag of exactly 0 if both channels are resistive and inductive compared to our expected 1ms delay.
Lemme look into it
1 minute
just have read the "imaging, stage" part
and yeah. Headphones doesnt matter when it comes to that
Product Information Driver: 10mm Dynamic Driver Diaphragm Material: Carbon LCP Dome Composite Ultra-thin PU Diaphragm Impedance:28Q+15%@1kHz Sensitivity: 122dB/Vrms@1KHz Total Harmonic Distortion: THD1%@1kHz (94dB) Frequency Response Range: 10-45kHz (IEC61094, Free Field) Effective Frequency Resp...
yes
That’s a big link
he clearly doesnt know how to cut down links smh
Product Information Driver: 10mm Dynamic Driver Diaphragm Material: Carbon LCP Dome Composite Ultra-thin PU Diaphragm Impedance:28Q+15%@1kHz Sensitivity: 122dB/Vrms@1KHz Total Harmonic Distortion: THD1%@1kHz (94dB) Frequency Response Range: 10-45kHz (IEC61094, Free Field) Effective Frequency Resp...
hes getting affiliate money
Would you say this beats out
Linsoul Tangzu Waner
Linsoul 7Hz x Crinacle Zero:2
KZ EDC Pro
Linsoul QKZ x HBB
Don’t know how on mobile yeah
why are the kz and qkz still on your list 😭
Haven’t removed the 2 yet
Was gonna update the list when I got home, am out shopping rn
I used a Feliks Elise as tube preamp for my Holo Bliss
into Susvara
man
I need a tube preamp
it was very pleasant
Okay despite removing it I initially due to its vocal focus I am gonna buy the Tangzu Waner when I get home
Thruthhear gate is second up tho
wut?
At 500Hz -> -π = -180º
At 1kHz -> -2π = -360º = 0
A 1 ms delay would look like a 0º phase difference at 1kHz if you're using phase mod 360º. It's still a delay, just phase wrapped.
Comparing different frequencies is completely invalid for delay. different ω values. ∆φ(f) is frequency dependent. Headphones' drivers and amp output impedance behave like a filter. this can add extra phase and group delay. If L/R channels are identical, this extra delay cancels only when measured at the same frequency and same stimulus. Using different frequencies breaks this.
Let's say we are modeling the delay based on where we expect the ngt of each impulse to land. If we expect a delay of 1ms from.the recording plus the additional 1ms the 500hz signal lasts, that's out ideal output. If we have a load that adds 1 more Ms to the 500hz signal than 1khz, our itd has changed by 1ms @broken grotto
that doesnt apply when its not the same signal being played to both ears
is the damn point
okay. A time delay means that the entire waveform is delayed by some τ, yes? The period (which is 2ms for 500Hz and 1ms for 1000Hz,) is not part of the delay; it just sets how the phase corresponds to time at the given frequency.
saving that the 500Hz signal lasts 1ms longer is mixing the period with the delay. A 500Hz cycle always lasts 2 ms, regardless of delay.
the way youre trying to claim it applys if one ear is 500hz and one is 1000hz is not an applicable scenario with itd/ild
If it's the same frequency yes, but in the real world we rarely just have the same signal playing in both channels.
in the real real world we do
so, let's go ahead and do this:
suppose that x(t) is a sinusoidal function in time. If we write the general form, we have:
x(t) = Acos(2πƒt + ø).
where:
- A is amplitude,
- ƒ is frequency,
- t is time in seconds,
- ø is phase offset in radians.
if you have a right channel that is delayed by 1ms, then it's just
x(t) = Acos(2πƒ(t-0.001) + ø). When the load adds its own reactive phase, the full right-channel waveform is:
x(t) = Acos(2πƒt+ø - 2πfτ - φ(f)).
- 2πfτis the fixed 1ms delay.φ(f)comes from inductance and resonance.
That's why I chose to model it with an impulse, because we have a digital device creating this signal with an actual start point in each channel. If the pgt starts 1ms later we will expect that 1ms delayed 500hz signal to be off by 2ms when we compare the first ngt. If we have an inductance that adds 1 Ms more delay for the pgt and ngt, the whole signal is now delayed by 2ms plus the 1ms length for the ngt's from the frequency differing
Using a single frequency single cycle waveform is a really oversimplified way to represent this, but it's true to the behavior conceptually.
again, phase shift versus time shift.
you'll see more when you take DSP.
or should
idk
honestly i think you'll be pretty alright no matter what you buy
some can feel more spacious, i think especially open back headphones, but iems are still fine. 95% of the directionality is coming from the game's sound engine because the only thing your head/earphone can strive to do is most accurately reproduce the sound cues your brain is listening for that the game is generating
just play csgo or something instead of minecraft if you need good sound directionality 🧌
why keep discussing with him 
I am a long-standing adjunct that used to teach signals and systems, and it makes me very concerned when people say stuff that is kind of correct
im less about telling him he's wrong and more trying to explain why he's mistaken than caring about the audio, hoping he learns.
the problem is this guy has been like this for years
a lot of the time, audio people have the right idea but they lack the experience on the in-depth side to really understand the underlying principles.
you can think of stuff in DSP like sampling rate.
most audio people know 90% of what you need to know
the last 10% is what people in the systems engineering industry know.
well. Most audio people are probaly musicians. they don't need to know the science behind
yeah, exactly
all they need to know is how to use their gear and plugins etc 
so sometimes if someone knows they're dangerous enough to understand the science and math behind it, they're less likely to take audio people's word for it; because they don't really know why the thing they're doing is the thing you do.
i totally get it.
But its just problematic if people say stuff that is not really correct and doesn't accept a "thats not correct tho"
even IF people explains stuff he tries to be in the right 
the problem is this guy is the pinnacle of knowing just enough to mislead
and to proudly declare theyre right even when proved wrong multiple times
i try to be correct as possible. if i don't know a thing thats sad, but i try to learn/understand it correctly
whether it be psus, ssds, headphones, audio whatever
like i started measuring speakers with a UMIK-1
watched some vids, took some measurements and after that i asked it it was correct
guess what. learned alot on DC rather in these videos i watched
there's takes in audio that I disagree with from a systems perspective, but i don't really care enough to argue with anyone about.
because realistically, as long as you aren't trying to tell me that you need to have xyz thing when, mathematically and systematically, you don't, we're good.
imo. Audio is "easy" on the surface. it only gets stupidly complicated if you start digging deep
many things are 'easy' on the surface
the science will make it weird again... espacially when it comes to psychoacoustics where we don't know muchg generally
yeah, and a big concern I have too is that, my trade, i am a systems engineer, with an EE background; so if we want to talk about the electrical side, i'll give it all the beans
but i really do not know that much about the.... biological, side
tbh. who does? its our brain
the brain might as well be magic
our brain is just weird fucking shitty complicated
there's people who's whole job it is to characterize and figure out why things sound the way they do to us, which is pretty interesting.
idk if anyone here does it, but once i went to a concert and there was a guy who's whole job it was to impulse response test the venue
"i listened to APP3 when i took a shit. had to tell. 3K region was kinda off. after i wiped my ass it was alright again"
lmao
the brain is like a supercomputer and a data warehouse in one
And a overengineered DSP

we need to do more neuroscience
more science for our brainz
like. Nice that we know what out body does to sound. cool
Our brain takes this information and transforms that into "Bro WTF are you doing"?
Math and physics: 1+1=2
What our brain does
my brain doesn't work because I like most Audeze headphones.
same
my Hexa EQ is IEM guys worst nightmare
lol
@broken grotto I still haven’t had a chance to order the opamps for the unity-gain circuit, but I retook the measurements using a slightly lower quality amp to increase the likelihood of spotting any non-linear amplitude transfer. I also used a DAC to generate the signal, as @white gate suggested. Hopefully this provides a solid, agreeable set of measurements until I can build the unity-gain circuit and get even more accurate results with my function generator.
psus and ssds is new to me, does this guy talk outside of audio-tech
what'd you measure. how do you start
you just try and tune your room flat? and then figure out why things reflect or something
hes an alt
did he use an alt to talk about psus and ssd
this is his alt
what did he say about psus and ssds
do you really want me to go into it
it was 5 years ago and all you need to know is it happened the exact same way you see him act now
aw i thought you meant recent
Ngl I'm curious lol
grr curse of my schitt modi fits so perfectly into my tv setup but i need it for my main setup too but im broke and i dont want to switch between them all the time
in short he thought 12v ocp was more important than it is and thought that ssds having s.m.a.r.t. firmware meant that it had 15 year old error correcting
and my fiio btr5 gives me a ground loop and my pcs aux sounds fine but it doesnt sound as nice as my schitt dac
I do like me some good schiit
have lots of their stuffs
might I interest you in the Fulla
i got a modi and magni and it did me well but the magni couldve been more powerful so i moved back to receivers
it does seem neat but i use a cheap usb mic and that also probably cant do as much as an evil heavy receiver
I also love how in the OS, when you select it, it says "I'm fulla schiit." because they have a sense of humor
heh that is pretty funny
i was looking at their uh modi upgrade but its pricey but their features look really cool
gaming dac smh
it's just because it has a mic input
i know
I use it for work for that reason
just use a apple dongle
if i feel like it ill bring my btr5 but i can cope with headphone jacks if i use iems
I mean, I use Audeze MM100's for work, idk if the apple dongle would do much for them 😛
i mean it might be fine
but also the mic is separate
I got that Fulla for like $99 on Amazon, so it's not too bad.
i like a lotta bass so small things arent inspiring and id wanna have an amp after apple dongle
i have faith in them though
I will also say that I have a soft spot for Schiit because their branding is funny, they seem like generally good peoples. so that's something worth it to me
mmhm thats fair
they would get them plenty loud
theyre not some evil chinese brick wall company
I shall try later
apple dongle gets hd600 to listenable volume and mm100 is more sensitive than hd600
yeah but will they shake your glasses,,
(with eq)
ew
you just have to hit the lower frequencies more or something
no headphone is going to shake your glasses unless youre playing bass at like 130 db
and at that point you either are deafening yourself or have a 50 db bass shelf
theres a chance
literally no chance
probably not i have this evil though
but i also touch it often
but like uh some people say you cant hear under 20hz and i definitely get 20hz
goodbye everything in the interesting parts of the music i guess
somehow it performs fine
i use meze 109s so theyre very capable
💀
ah yes, fellow meze enjoyer
props to them though for making headphones that withstand my abuse im really impressed
my dt1770s do not compare
i dont know but uh if you adjust 0hz itll ruin things sometimes
i was eqing a pair of speakers once and went too far left accidentally and it popped super loud and i blew a woofer
they were a gift to someone too and i had refoamed them but oh well mistake ill only make once
I just thought I'd share this.
on windows it omit's the "speaker," part
but weirdly my company issues me a macbook
so idk
yeah bad things happen when you go below 20 hz
ive always been fine otherwise(when using capable stuff) but it is fun uh you get to really push equipment though but it is fun
Are you talking about the smart scholarship program by the department of defense? All I said about that is that I would have accepted it just to say I worked at the department of defense if they didn't change their name to the goofy ah department of war.
And I mainly just talked about power supply protections in the keyboard space, because people thought they were magical buzz words to claim whatever board they like has while ones they don't like lack, as opposed to a physical and identifiable thing.
Didn't really want to address drama, but like that's super disconnected.
hmmmm
my HS7 and my Car AND my Parents car xD
Thought you were gonna complain about be using the cheapest ssds for my bench and floppa and I glazing the EVGA t2
Yamaha HS7 in my room RAW
HS7 measured AFTER EQ in my room
I did some changes ib the bass tho. so in the bass it looks different now
This is my Ford Fiesta 2016 raw
it has a 3 Band EQ so i cannot fix it really
the dip on one channel is pretty normal. car speakers on both sides have a different distance
This is the ISUZU D-MAX 2017 from my Parents RAW!
with no effects on like "seat correction" etc
and this is after EQ
broooo wtf is that 
Upgrading from a Recon 70 lol
Does anyone here have any experience with wickedcushions? I need a replacement for the pads that came with my headset
never used them but I had good luck with dekoni
Skullcandy Crusher Evo
yeah, dekoni would probably cost half as much as those anyway; i think wickedcushions generally has good reputation though
they seem to have pretty good reviews
They have arrived
honestly I dont mind a bit of a price premium if they last a good long time
I think I am using them wrong
Okay I think these are pretty sic and the the mic is crips
I think there is more base and clarity but hard to tell cause Idk what I am looking for
Fiio FT1 EQs I'm looking at
truthear gate!
they're pretty good!
i think anyway.
I am pretty happy with them so far
I am still getting used to having the different sized tips, and other stuff
Gonna have to give it a test in gaming once dnd is over
Is it normal for tips to fit better in one ear than the other?
yeah, human anatomy is weird
you may need different tips for each ear
right one uses L, left uses M or something like that.
usually it's not that far off
I am trying that yes, the size down feel slightly small tho so rn I am guaging
but some brands offer ML, MS, stuff like that.
I am a big IEM tip swapper
so like, I like to buy AZLA SednaEarfit XELASTEC tips
they offer in like s,m,l,ms,ss,ml, stuff like that.
should I use different tips in each ear if the fit is the same but my left ear is like 30% quieter than right
maybe I should learn to do the sine sweep thing where you make an eq for your ear
Why is your left ear quieter than your right? Hearing loss? Defective headphones / earbuds? Source audio file / device problem? I wouldn't want different size eartips in each ear unless my ear canals were physically different enough, and I don't think this would really solve the issue of different volumes in each ear either.
difference in hearing
it would not help
eartips should fit properly, and a improper fitting eartip will either just hurt or want to fall out
there's different kinds of eartips, such as foam and stuff
but idk that they make that big of a difference in sound to fix something like that.
if my speaking voice is between -12 - -24db but my gain is still above 50% does this mean i need a cloudlifter
i now own a freshly refoamed pair of advent graduates for my own personal use(ill test them tomorrow)
lift them up
you get 5% sound and your b.. the real sound
ill probably swap them onto the stands when i test them
the goal is that they sound better than my boston a60s so its tough competition but i believe in advent
Left is stock
are you that into harman?
Gotcha. In that case, I wouldn't use different eartips. I would adjust the balance (L/R) of the device outputting sound so it sounds correct for your ears.
It's an EQ preset for the FT1
I don't think i'll need it, but 🤷
mine looks like this
hello guys, i am looking for headphones for around 70-100 euros. i need a new one for playing games cause the one i was using is broken
i play games such as rust and val
so i need to be able to hear footsteps properly
not familiar with footsteps on rust
looks like some mountains
nothing too crazy really, just a lot of them
could be art
KSC75 are imo best budget headphones for gaming
they got no bass tho
also that's more of a scientific eq, not really a listening eq
scientific eq?
it's very accurate to the tonality I'm hearing, but could still contain tiny shifts or incorrect slopes that hurt things time-wise
what I really use is eq turned off, disassemble the headphones and put them in a box that remains untouched for months
but like I've mentioned before, eq/tonality doesn't affect me much
also something you can do
what do you mean exactly
it still sounds exactly like an ft1 regardless of eq or no eq
you mean to tell me you disassemble the headphones, like, complete tear down?
that's so extra
kinda hilarious though
and I don't prefer it differently with different tonality
"Headphones"
If your Headphone still sounds "like FT1" you do something wrong imo 
Ear clips
go get a headpand mod for 10 bucks
That was a very short lived issue
ik ik
still have the 1. FT1 and FT1 Pro version
my discord bugs... can't see it 🙁
video no work
burh
poor FT1
this is how you properly access the screws
I mean...
you just... put them back in the box.
you do not need to disassemble them.
of course I do
fastes way is.... throw them on the ground 
they went through actually so much additional engineering trouble and cost to put anti-tamper discs above every screw
iirc its just this damping material like next to the speaker
that is angled
you have to screw them through 
no not that
i mean, if you are just trying to take a break from them, instead of disassembling them you just put them back into the (included) case, then put that back into the box. then, hear me out
put them in your basement or something so you have to actively go seek them out
no teardown needed
why are you so opposed to a teardown
unless i am completely misunderstanding something lmao
i don't understand either
I was really looking forward to playing with these ... But things don't always go according to plan
If you fancy checking out what we have for sale, take a look at the link below:
https://customcans.co.uk/shop/
this timestamp
simple. every time you assemble and disassemble something, you induce wear and tear on the components and mating surfaces. this can shorten the lifespan of an (already,) short lifespan of a product like that.
he disassembles them without destroying them 
needless tear downs waste your money.
that's not really how that works, everything is rated for a certain number of cycles.
think of the plastic clips on a laptop case
even if you're extremely careful, you will break some inevitably.
it would take a very high amount of disassemblies to get to that point
ideally, yes
i still just don't see the benefit of tearing them down just for storage.
unless I did it wrong. and of course it's only going to be opened once by me and probably never again by whoever buys it down the road
they take up more space disassembled like this
but.. you destroyed them
why would you want them to take up more space
this is a skill issue
why do I care about space
I don't
they're in a box because I haven't put them back together to throw them in the headphone bin
if a few tear downs significantly reduces your products lifespan its either cheap chinese shit or something thats low lifespan to begin with
as someone who at one point had to characterize the cycles of certain RF connectors, it really isn't. it just happens over time.
some things are better than others.
it's still irrelevant
SMA versus N type, for exmaple.
yes, in the reasonable span of the product's lifetime, the amount of times you disassemble it should not create any issues. but when you start tearing it down just to store it, that's where you can start to run into lifecycle issues (ignoring that you may damage something in the disassembly or reassembly, remember, no matter how perfect you think you are, you will make mistakes.)
have you watched his full video?
he didn't disassembled them. he straight up destroyed them 
and I haven't put them back together because they're mid and are disqualified from a lot of future game testing for preexisting reasons
shortened the lifespan, no?
they are 100% functionally in tact
he hotglued the outside of the cup, and lot of plastic broke 🙁
used the what is it a 3/8ths drill bit? 💀
Well.
Watch some Africa Car videos. Lot of cars there are not really "cars" anymore. they still drive, but wirh like 80% of the parts that the car had out of factory 
sure but the majority of things aint like them coax connectors
this is true. still doesn't mean it's irrelevant to mention.
taking it apart once to see how it works is one thing, but taking it apart repeatedly is pointless.
and i think the second half of this covers what you said
because i was agreeing with you lol
lmao
if I'm going to review a headphone and make a repair guide, obviously the inside of the headphones is important
blowing through the anti-tamper disks is merely sending a message
i sure hope that video isn't your repair guide.
just footage for a review later down the line
might keep some of that for showing how to open them, of course the drillbit part being unnecessary
but.. just unscrew...
how was mr customcans able to open the cups seemingly without a drill press or even a drill
found a russian youtuber too
it seems he was unhindered by whatever anti tamper screen foiled you
a screwdriver will go through it just fine
but you can just... Screw through it
I think it's cool to be curious and want to tear things down tbh
gentle push
I thought he wanted to tear it down for storage and was very confused
yeah but if you look at mr jacksons video above its more than just a teardown
@sleek lily this is what he wrote
but for other it worked by just "unscrew the screws" instead of DRILLING!
Plus, in the context of headphones, screws and threads are unlikely to be a major failure point unless it's hifiman. They use some really soft screws lol
i 100% would not be surprised if some audio person was like, "to properly listen to headphones you must disassemble the headphones, store them in their box in a locked box with a timer in a climate controlled building."
That's what i call "Passionate Burn In!"
generally when I first get a headphone I'll listen to it and then take a look at under the earpad, under the baffle etc. the steps taken to design a headphone are interesting, so are what driver's used, how the sound flows through the baffle filters, all sorts of stuff
best would be if it still plays music 😄
Most logical audio myth ever lol
well yeah. totally relatable.
But. You don't have to drill them
bruh I'm not serious
He forgot the totem 🙁
I'm all for disassembly for investigative reasons, i just expected he was just tearing them down and reassembling every time he wanted to listen to them which is wild
We need "How To Basic" for Audio gear lol
not sure if im just jaded with regards to audio people now or what
there are no myths only unproven realities
"properly access" was me referencing the sheer disrespect an anti-repair product deserves
💀
i dont think a few stickers is 'anti-repair'
plus, from a real perspective i wouldn't suggest someone tear something down if you aren't willing to break it, is one thing worth mentioning.i suppose.
nothing would make me happier to see this thing sent in for an RMA and have a supervisor see what happened to their tamper stickers
just,
turned into massive craters
with the sole intent of creating a massive crater where it wasn't necessary
especially with audio, returns are a big pain for audio stuff apparently
i've pretty much never bought anything from headphones.com because if anything is on sale, it's "final sale," so you can't return it; makes me question what happens if i get a defective unit.
you could just ask them 💀
their reviewers of sorts have given me a bad taste for the site
Like in Europe. Not legal
no matter what. If you are NOT a private person. you HAVE 2 Years warranty by LAW
I can also choose to buy from a different place that offers returns.
but also I mostly buy stuff used or broken
like where? amazon?
I've had great luck with Bloom Audio
most retailers that arent amazon have similar policies
bought all kinds of stuff from them, and the few times i had issues they took care of it very quickly.
and not many other places have the 365 day return policy like hp,com
I'm sure headphones.com would probably take care of you if you bought a defective unit on "final sale,"
Unrelated to audio, but I got a cool pic of the microprocessor my evc uses. Might be cool to make some custom code for it
otherwise they probably wouldn't be in business as much as they are
got banned suddenly. I was a mostly respected member of the community, though of course I butted heads with some objectivist takes
anyway the majority of retailers are like this tho
clearance = no returns
I am grateful for what I was taught there about measurements and such
but how does that relate to the reviewers?
no comment
they have 5 reviewers and like 10 mods
ultimately doesn't really matter though
I'm on Jackson's side here
Well. You 2 tend to say stuff that aren't quite correct and sell it as fact 
I get that, I just remember looking at like, multiple different things I was interested in and they were all "Final sale," and was kinda put off by that, since other retailers had them on sale and still offered returns.
Such as?
Should i scroll up to all these discussions with golden?
Dude who doesn't believe in math saying I say things that aren't true is wild 😭
LMAO
i believe in math
high on math??!?
oh apparently i bought my blessing 3 iem's from headphones.com
ok i lied, i have bought from them
I redid the measurements with a dac like he requested. The expected result still remained. The initial result may have been slightly thrown off by the thevenan equivalent resistance at the input being somewhat variable, but I still believe even that amp wouldn't be 100% linear. The point of that discussion and measurements though we're if it's possible for an amp to have an amplitude related transfer that isn't just a line.
i looked at your data.
it's the same because the real world sucks. you had unity gain.
I also asked you to compare with an excel spreadsheet to calculate the gain, which wasn't provided.
The most recent one I kept more simple. It just probed a DAC output which went directly into an amp and probed the amp output. I did all volume control digitally.
In a way makes it more realistic to a real audio setup too
you can even see your scope traces and see that your "non linearity," could just be attributed to noise.
i'll be honest, i have no idea why you are still barking up this tree.
and if you want me to be serious with you, if you believe that you can reasonably prove against something multiple sources will tell you isn't a problem:
make a heccin dissertation out of it.
don't tell people on discord about it. if you're that sold on it, make it your research subject.
you might spend 8 years in grad school barely scraping by on those research grants because you can't find any data, but still.
or don't know how to use a screwdriver
I don't believe it was noise. If it was just noise it'd show up in the fft and the measurement would likely see more fluctuation. (One measurement was pretty noisy at the moment of the screenshot but it wasn't really an outlier).
If I had more time id actually like to turn this into a more serious research paper, but I talked to a few professors about it and they all seem to believe it's just expected that an amplifier have some variance in gain related to amplitude, but be close to linear. I might be able to make it a more serious side project in a semester I have more time though.
im so good at repairing stuff that whenever i do it, i'm able to successfully re-assemble it without even using all the screws
engine builder's logic
That's pretty skillful
oh god not this again
most of my research was focused on joint RadCom waveforms as 5G was coming across the horizon
so you are starting to approach radar X-band frequencies with cell phone networks and their harmonics.
either way, you had professors basically tell you the same thing
that should clue you into it that if not even they are willing to agree, you probably have very small legs to stand on. Maybe a different school might have a crazy professor willing to throw his entire career into the fire but idk
there's much cooler things to research in grad school anyway.
like quantum computing.
or heccin lazers
photonic computing also rad as hell
is that EE or would that be more physics
or material science
could be any of those
@broken grotto the point of the measurements were just to show that an amplifier can have gain vary to a small degree as amplitude changes even if not hard clipping because golden demanded i show it's even possible.
In grad school I'd like to focus on high frequency signaling tbh. Overclocking is my main hobby and it's basically keeping high frequency signals from fudging up lol
can see how EE would be useful for circuit design and as long as the eggheads do the base technology
there's DSP, as well.
oh yeah huh
most of your wave theory from Emag also falls under light, as well
yeah but im thinking how capacitors and inductors would translate to photonics
if they'd be needed at all
you also get benefits of using different spectrum and weird behaviors with crystals
you'd have photonic analogs to those, really.
a dielectric interface being a "capacitor," and a magnetic coupling being "inductor"-like.
optical resonator being an LC circuit
possibly, yeah
@lean grove race me
also wonder how it will affect desktop usage for a consumer
for AI models that would be like 50x speed
nah
but for Desktop? Everything so far is made for "either on or off"
no thats quantum computing
Tbh, I think ai as the big buzzword is gonna die out before we have mainstream photonic processors lol
quantum computing is photonic or not 
idk man
ah wait im dumb.
Yes it is photonic
but the tech i talk about is
only Photonic processing
quantum is the buzzword
old buzzward. overused and moldy. obvioulsy it didnt pan out. AI is the future now.
Ai generated Headphones 
holy crap what kind of linux-ass font rendering is this
I find quantum computing to be super interesting.
nah quantum computing will make gen ai possible
that's.... Windows 10 and Discord Dark mode with 1080P
it's that Science that we don't understand wtf is happening 
yeah linux having bad font rendering is a common joke
it reminds me of those sans sarif fonts that often were used for Korean years ago lol
bruh use cleartype
fix your font rendering
like we know some stuff. and we know what happens if you do this
bro what?
Seeding human consciousness with kick ass looking amplifiers !
guys. do a screen and leak FONT
not headphones but close enough
bro
i have the exact same
nevermind that is the chromatic abberation of my glasses
Quantum computing is kinda like a different way to do compute that's really bad at certain task but really good in others. The cool thing is that it's rapidly developing with new algorithms and ways of doing things. A hot bed for research.
false
even my linux looks better than yours
even without subpixel rendering it still has decent hinting
i just have 1080P 🙁
well yeah
i have shit displays
even tho screens are digital 
just search cleartype in the start menu and fix it
that's completely unrelated
like it should look smooth and blurry
not blocky
it should look subjectively a bit better than linux because windows renders text slightly thicker than freetype
@broken grotto you said in grad school you focused pretty heavily on 5g right? How do you feel whenever you see some goober spew 5g conspiracies? lol
but that's a bit of a tangent
didn't do anythin
don't hug the antenna.
or do, i don't care.
Lol
any idea how I can incorporate speakers into a tripe horizontal monitor layout
how wide?
head phone
put the speakers right at your ears
full size speakers right next to ears
oh oh oh i have an idea, i watched an ltt video earlier where the person had speakers under the desk. (i think it was a setup video.)
thinking how bad of an idea it is to ho horizontal but these things are like 70cm tall each
I need to get a home LCR meter. It'd be cool to test how inductive my headphones really are.
@green marsh no difference 🙁
double stack two of them vertically
clearly you did it wrong
floorstanders
why is it so messed up
do other programs do that
what even is cleartype
WTF 😭
i did what it said me to do
lmao
smooths the fonts so they dont look like that
oh ok
did you go throuugh all the steps and choose the ones that looked the best
yes
but it did nothing
do you have access to an Analog Discovery 2?
even macos fonts look better than this
and macos has famously ugly font rendering
they don't have an LCR meter, but you can do an impedance curve with it.
why u have mid field monitors as near field 🙁
those are huge what the hecc
because I own them and not near fields
"mid field" with the size of those speakers that must mean the middle of the football field
what are those like studio mains
No but I should get one
yeah
no
lol
regular floorstanders
I just room eq abused them into working
room eq is copium, simply assemble a room that sounds good
nah i just use headphone
ok please build me a completely perfect room for free then
i have the same room everywhere
me too
cope
@warm scarab that's a chonky mic
its a c1
bro never used a speaker in the shower
its pretty average bro
i have not
idk about u tho
the last time i used speakers was at school
see. you lack experience
speakers are just better man idk
speakers are simply superior to headphones
I should buy speakers.
speakers are superior yet every room has to be corrected
way fucking better
True. If you want speakers. Just get the Razer Soundbar
i'll get a razor and make a soundbar out of your speakers
that would be quite a big Soundbar
youd have to be pretty stupid to fuck up a room eq anyhow
you need to measure anyways
if you can click on 5 buttons in a row you probably shouldn't be allowed to go outside
i won't because i just use the headphone that sound good
i can click on 5 buttons
cope
oh my god i have to hold a measurement mic for 8 seconds this is fucking intolerable
even 305p beats 99% of headphones
well it wont ever sound as good as a speaker
What Headphones?
the vibrations of your arm while holding the headphone must be accounted for
yeah what headphones
🤓
razer cracken v3
im going to cracken your skull

gods plan
which one you want first
Kvl
??????
True
kraken is like THE razer headset
i googled it and only the v2 popped up so i tried to make up a fake one by saying v3
because i assumed it would have shown me the latest ones
thats why you chose an arbitrarily large number
this is peak audio
smh
it doesn't get any better than the radioactive green
like iphone 69 pro max air
its like FT1
I didn't even know those were a thing that exists
but in expensive
fair enough lmao
fostex by fiio
FiiO FT1 but three times the price!
(it's not really 3 times the price but i thought it was funny cuz FT-13..)
Reddit says if you don't shit in your bass port, the sound quality will be distorted by 35%!
no they don't i think that' sfake
they look and seem to be better build
but sound is uh.
every time I go on reddit I remember why I shouldn't go on reddit
reddit is fine except if you go into certain subs
r/icecream is the most wholesome sub
imo respect for archieving tons of bass with different pads without affecting mids and treble
most of it is shit
get real
do they have "Mettbaby" flavour?
the parts im on are fine
redditor 🫵
false
i just stay in the weeb corner
i use discord far more often than reddit which is probably worse
i need to do some more sim racing
with some people here in that chat
yeah
wish i had vr
same
same
I have a really good wheelbase though so im happy on that regard
same
i tried to do an autocross course but literally all corners are blind
because too low of fov
what the heck
that sounds about right
it can only apply 2nm when uninterrupted, not static
the steering on the g29 feels like a honda odyssey irl
i tried to measure the peak nm on this yesterday with a scale and a metal ruler
it broke the fucking ruler and launched the full metal scale
my mom yelled at me lmao
what was this measurement setup like
the measurement for nm is that you attach any stick onto a motor
account for the distance of the stick
I especially enjoy the power bar of a breadboard
I have done that before
why do they measure the torque output of engines in energy
now that one breadboard, you'll go to use it next time and be like "WHAT THE HECK it's missing the power rail!"
i will leave that question to brew
its not really they weigh the output on a scale
like a literal scale you use to measure your weight
the most i could find is that newton-meters is actually joules per radian
tbf has been going surprisingly strong
i expected something to come loose by now
but that doesn't make any sense
naw, it'll be fine
yeah i was talking about something else
its just weight at 1 meters of distance
combustion engines they measure in energy for some reason, i think it somehow works out in the end once you multiply it
they kind of work different
engines apply rotational force to it's crankshaft. This is the force x distance from the axis of rotation.
that would just sound like it makes torque though
yeah that is what i would've thought
this thing actually scares me at 100% power
remember the speakers
I tried goofing at 100% power once and it launched the speaker on the fucking right side like a good 3 centimeters
and I just stopped
because the power output of an engine is calculated by "torque" divided by time and that just sounds so weird
oh, are you trying to justify horsepower/kW?
a simple yes or no would suffice, but i'll take that as a yes lol
yeah
how is that supposed to make sense
it's not torque foot pounds
but i couldn't figure out what exactly is going on
foot-lb is torque
torque isn't hp
yeah because power is work over time
P = T * w
not in this situation though
I don't know how hp exactly is measured but when you go to bench your car
they tell you how much hp it has and how much nm it has
The foot-pound force (symbol: ft⋅lbf, ft⋅lbf, or ft⋅lb ) is a unit of work or energy in the engineering and gravitational systems in United States customary and imperial units of measure. It is the energy transferred upon applying a force of one pound-force (lbf) through a linear displacement of one foot. The corresponding SI unit is th...
where T is torque, and w is angular velocity.
because they serve different purposes
i will do some more research later
that was just a question for the mind
horsepower is the same power as joules and calories
audio-chat assetto meetup when
it depends if you'll listen to me, I can justify why we use it or not
yeah but then why are we measuring "torque" in joules (technically per radian it seems) 😭
but if you want to do it on your own, all good.
shoot
hold on can i do something for 3 or less hours and then come back
?
whos we
engine people
people of engine
i think it needs more context to understand what i'm saying because it's somehow not torque
and i don't know if i'm saying the right thing at all anyways
because i know you learn from physics 1 that power is the rate of work done per time, and work can be done by a force or torque applied for a distance
What's The Difference Between Horsepower & Torque?
Why Is Peak Acceleration At Peak Power? https://youtu.be/cb6rIZfCuHI
Subscribe for new videos every Wednesday! - https://goo.gl/VZstk7
Awesome Car Products: https://www.amazon.com/shop/engineeringexplained
Which is better, horsepower or torque? Two words that are often stated in the car communi...
oh gosh not that guy
idk man first google result
lmao
wow
its not even that bad honestly
he's great
oh hold on a second
guys i will be back in 2 hours and then resume the thinking process on this
i'll give you a hint
joules are scalar.
is torque scalar?
skyler we need to cook
ie, joules don't have direction attached. they're directionless, wandering with no real purpose.
torque has a direction.
we consider joules a scalar, meaning it has no direction, and torque a vector.
that is, torque times an angle gives you energy in joules. torque itself isn't energy, it's the potential to do some work per radian of rotation.
@broken grotto I think it might be that when numbers for torque output of an engine is given the crankshaft radius is divided out or something for sanity reasons
actually not the radius maybe its the angular velocity that its divided by
I gtg
#audio-tech simracing meetup when
I never really got into simracing, but I've lived in areas where we could have fun with a real car
although simracing is probably cheaper
i find that people really underestimate simracing
most of the redbull drifting championship practices for championships on sim
and there are now mandatory sim sections to gt racing which the oldstyle drivers really hate
there is a guy called ryan's road to rally on yt
dude practiced on rbr, dirt and wrc a ton
got 1st place podium in his first ever rally
got 1st place podium in his class on an international rally in his 2nd competition
having abilities that translate from a videogame to real life is just a very good luxury that most digital hobbies dont have
I was pretty involved in the car scene during undergrad lol, I had a Nissan 180sx, if you know what that is.
i know it
good cheap platform that is now completely ruined by how damn expensive it is
fuck me
went to uni in Japan, this was very long time ago
I was much younger and way smarter
i found one for 20k usd
lemme compare to how much i paid for mine way back when
interesting
studying in japan is a unique thing to do "a long time ago"
not american
back when?
2001
cars condition?
it was used
15k usd in todays money
interesting
its way more than I expected
i think it was in the 60,000km+
you don't normally see cars sold with 100k+km on them in Japan, those normally got yeeted off to New Zealand or Australia
actually i take it back thats really good
I was like "oh its only 170hp"
then I checked the car weight
lmao yeah they're really fun
jesus 1.2kg
yeah i bet that thing just bolts into whatever corner you point it into
thats an incredible hp to weight ratio
I like mah nissans
when I moved to the USA the first thing I went and did was bought a domestic muscle car
why not
that may be a good or a really bad thing
it was pretty hilarious
is it like a cliche that goes fast on a straight line
I didn't realize just how much fuel it would burn lmao
that just doesn't turn
I got a Challenger, so it's a boat
but i am pleasantly suprised at how it handles. for how big of a car it is, and how heavy it is
i mean cars not bad but
it actually doesn't handle that bad
yeah but.. cmon... I moved to the USA. i wanted a muscle car.
sure fine
the other option I had was to go out and buy a big truck
but imagine how much a skyline back then would have costed now
you could have sold that shit for like 150k
but the only thing trucks do is attract dudes with facial hair and that already happens to me too much here
tbh you can argue 90% of the trucks in america dont do anything aside from just eating fuel and not carrying anything
i will never comprehend the fondness of trucks in america despite people not carrying anything with them
I heard it was all marketing
they marketed that it was safer in a big truck than you are in a car
and people believed it because apparently people can't really think for themselves anymore.
ive frankly never heard a truck owner say their car is safe
or that they got it for that reason
but maybe that was the initial reason and it changed over time
fair enough, i have very removed perception of that because i haven't lived in the USA that long
but all i do know is that it's really funny watching the guys with big lifted trucks
and they're flying all over the road because it doesn't drive straight.
lol
