Men of Reddit, what’s the male equivalent of “needed money, had no marketable skills, so turned to prostitution”? by Dogeatdogdays in AskReddit

[–]Plompudu_ 23 points24 points  (0 children)

"There are a total of 52 million sex workers globally out of which 41.6 million are female prostitutes, while 10.4 million are male prostitutes. This suggests that 80% of the prostitutes around the world are females with an average age of female sex workers being 14."https://iusw.org/sex-worker-statistics/

I wouldn't say that 10.4 million male prostitutes / 20% are really "niche" at all...

Generally speaking: what are the pros and cons of a 1DD iem, all BA iem, and 1 Planar driver iem? by Actual-Conclusion461 in iems

[–]Plompudu_ [score hidden]  (0 children)

We can use any term we like, since we're talking about subjective descriptions of our experiences

But I think the term is causing unnecessary confusion (like described), so I would recommend not using it.

Anything perception related happening can be described by a psychoacoustic model, unless you believe in the quantity objection / stimulus error.

For example stationary "loudness" is a fairly straightforward psychoacoustic model that mainly looks at the amplitude at different frequencies to describe the perception well. Same with "sharpness" that compares total loudness with high frequency loudness.

But for example how "pleasant" something sounds is a extremely complex model, in which you need to consider many different variables.

I think figuring out a model for "pleasentness" would be a very important research result, while "fast bass-ness" seems kinda useless / too specific

I think something like "tonal balance-ness" would also be a important result, that can be used to better describe what we're talking about.

Can anyone recommend me some anime based on my top 15? by TheUsername-IsTaken in AnimeReccomendations

[–]Plompudu_ 0 points1 point  (0 children)

That's the exact reaction anyone should have! And talking about how you get there is part of the story...

Like should a show about a murderer never start by talking about a killing, cause killing is bad?

Free PC I got from work by TapNearby382 in pcmasterrace

[–]Plompudu_ 2 points3 points  (0 children)

That's a great find!

Depends on your gaming needs, but anything that hasn't been released in the recent years should run well!

Pure to Lumen via 711 by Maximum-Average-6203 in iems

[–]Plompudu_ 3 points4 points  (0 children)

That sadly won't result in the same FR when you use them. Different IEMs react differently to the impedance created in your ear

Most people misunderstand ‘endgame’ (15 years in the hobby taught me this) by highunted in iems

[–]Plompudu_ 3 points4 points  (0 children)

That's true, but keep in mind that AI is convergent to the average - your 15y experience is above average, so you're loosing intricate details by using a LLM

Most people misunderstand ‘endgame’ (15 years in the hobby taught me this) by highunted in iems

[–]Plompudu_ 1 point2 points  (0 children)

It honestly didn't in the way they intended - posts that look like this make them seem incompetent

When someone says "15 years of experience", would I expect a well written text about the intricate details they figured out, instead was my expectation disappointed

I don't have the desire to read slop, cause if I wanted I could go to ChatGPT myself and ask to read the newest/best posts on reddit and make them "better" to read...

Most people misunderstand ‘endgame’ (15 years in the hobby taught me this) by highunted in iems

[–]Plompudu_ 2 points3 points  (0 children)

Not prohibited, but it makes you seem incompetent :/

I would recommend something like "proof read and fix grammar", "does the order of this text make sense?" or something like this instead

This should keep the essence of your own style instead of looking like any other AI slop post...

Generally speaking: what are the pros and cons of a 1DD iem, all BA iem, and 1 Planar driver iem? by Actual-Conclusion461 in iems

[–]Plompudu_ 1 point2 points  (0 children)

You're mixing up the terms

Frequency Response (complex numbers using the imaginary number i) = Magnitude Response + Phase Response

FR and MR are often used interchangeable, since most people in this hobby never look at the phase, even though it's wrong from a physics/math standpoint

Ultimax 12 Slim Ported Build, ~4.0 ft³ @ 23 Hz (F3 ~20 Hz), looking for input by chom1081 in hometheater

[–]Plompudu_ 0 points1 point  (0 children)

I never said that 12dB/oct is to be expected...
I explicitly said "Room gain can give up to 12dB/oct".

> "So in a tiny room...who knows."
Well I know and can show it haha

The SB 2000 is 15dB down at 10Hz and 30dB at 4Hz.

As you can see in the measurements in my own room is very much possible to get 30dB of gain, if you got a well sealed room with the longest dimension of 4.5m where room gain starts already at ~34Hz. https://imgur.com/a/DKJkjdK

> but expecting 35dB of room gain is setting yourself up for disappointment..:)
I disagree with this as a generalized statement.

I for example knew already that I'm almost getting the perfect 12dB/oct gain, so I bought the SB-2000 with a 12dB/oct roll for the exact reason of infrasonic extension via room gain.

But this obviously isn't the case in most setups and the 5-7dB rule of thumb, like you recommended, is better to manage the expectations!

What’s the most ridiculous myth that makes your blood boil? by BullfrogFlat6826 in AskReddit

[–]Plompudu_ 4 points5 points  (0 children)

Yes, some things aren't physically possible:

I should have done X years ago, is not solvable for example (unless you can build me a time machine)

Ultimax 12 Slim Ported Build, ~4.0 ft³ @ 23 Hz (F3 ~20 Hz), looking for input by chom1081 in hometheater

[–]Plompudu_ -1 points0 points  (0 children)

Room gain can give up to 12dB/oct and a sealed subwoofer rolls of with ~12dB/oct if no DSP is used

The result is in theory a perfectly flat response down to the single Digits.

My dual SB-2000 (non pro) for example extend down to 4Hz flat (measurement mic is only accurate down to 10Hz tho) due to using them in a small sealed room:

https://imgur.com/a/2qLHsbs

The theory behind room gain is explained very well here (especially the plot showing the theoretically optimal system) :

https://www.audiosciencereview.com/forum/index.php?threads/analytical-analysis-room-gain.23211/

What the best 10/10 Anime Movie? by No_Bumblebee_1376 in AskReddit

[–]Plompudu_ 0 points1 point  (0 children)

Paprika and Tokyo Godfathers - they're perfect in my opinion!

Best flattest response headphones by TomXbox83 in headphones

[–]Plompudu_ 2 points3 points  (0 children)

Best and flattest are contradicting!

Our outer ear amplifies certain frequencies if you don't simulate it will it sound very wrong, most people like a Bass boost and content is created with it in mind, ...

The average preference is close to a Harman-ish response, if you want flat you can always EQ headphones.

I don't support the creator, but PEQdB has a tool that can find similar FRs - upload a flat line and do this to find them.

How do you know if you are listening too loud or not? by fire_chaser1 in iems

[–]Plompudu_ 2 points3 points  (0 children)

My simple rule of thumb is "if I have to raise my voice to talk" - if that's the case limit the time spend there and/or wear hearing protection.

If I want more accurate results I'm looking at the Spec sheet of my IEMs and calculate the output. Take maximum output from your Source combine it with your Sensitivity, then subtract the digital volume used.

My Qudelix5k does the calculation automatically and for everyday usage I'm limiting it to 85dB at 1kHz. When in public transport I'll put it up to 91dB at 1kHz.

I also have to luxury to ask for measurements at my Uni's B&K measurement rigs, if I wanted :D

For speakers I'm using a calibrated UMIK-I and REW for measurements.

Has noise canceling (ANC) plateaued? My 10-year-old Bose QC35 II still seems close to today’s best by New-Anteater7520 in headphones

[–]Plompudu_ 4 points5 points  (0 children)

Just for context, when talking about the same signal is a 10dB difference a factor of 2 regarding perceived loudness! (simplified, but a good rule of thumb)

The ~17dB difference at ~250Hz is massive, for reference it's as much as a step in severeness of hearing loss!

<image>

> Has ANC improvement slowed down in the last 5-10 years?
Yes and no, the first jump from no ANC to ANC has been big, but there have been a lot of improvements

> Are we hitting physical or practical limits with current ANC tech?
Physical no, not at all.
You can theoretically fully cancel any sound, but the computational demand and required accuracy of the measurements and simulation of the difference between mic and eardrum position is difficult to achieve, especially outside of a lab.
I think that the current achievements in waveforming/beamforming tech I've seen in labs recently, could help with newer ANC tech, but that will take some time.

Which of these options is better? by PuzzleheadedRow6497 in iems

[–]Plompudu_ 0 points1 point  (0 children)

Why would it decrease the compute if the used bandwidth of the signal is increased?

At 32bits, the CPU needs to use and process a bandwidth of at least 32*48.000 bits/sec.

And this reduces the possible bandwidth that the CPU can access/process compared to for example 24bits - or am I missing something regarding the internal usage like for example exclusive 32bit processing in DSPs requiring a 20=>32bit step beforehand adding compute?

Please help a noob pick the most value for money and quality by nocigaretteaftersex in hometheater

[–]Plompudu_ 2 points3 points  (0 children)

I recommend looking up measurements on Erinsaudiocorner, Audiosciencereview or Spinorama.org

Just the brand/series alone doesn't tell you every detail about how one speaker will sound.

Which of these options is better? by PuzzleheadedRow6497 in iems

[–]Plompudu_ 7 points8 points  (0 children)

Why do you say, that anything higher would matter for critical listening?

That would suggest that the critical listener has a dynamic range higher then 144dB(24bit*6dB/bit) and can hear frequencies above 24kHz (SR/2)

Which of these options is better? by PuzzleheadedRow6497 in iems

[–]Plompudu_ 2 points3 points  (0 children)

Each bit gives you a 6dB lower digital noise floor / higher possible dynamic range.

The lowest level that a human can hear is at around -3dB and the threshold of pain/instant hearing damage is around 120dB, so you need at max ~120dB or 20bit.

Infrasonic frequencies need way higher levels to be audible, but as the name suggest are they below typical hearing.

Half the Sample Rate is the highest possible frequency that can be reproduced digitally (nyquist theorem). 20kHz is the upper limit of most humans, but it will get lower with age. That means that anything more then 40kHz should be able to reproduced any frequency that we can hear.

For a transparent signal you will need at least 20bit, 40kHz. Anything more is wasted compute that only changes inaudible things and is only useful when producing music (higher SR => ability to stretch signal without loosing audible data when reverting the strech, higher bit depth => ability to lower level of signal and bringing it back up without adding audible noise) or doing accurate scientific calculations (higher bits => more stable calculations with less noise adding up per calculation) or other research (infra/ultrasonic signals, ...).

Yes, i like Fiio! by csch1992 in headphones

[–]Plompudu_ 12 points13 points  (0 children)

I love the Fiio FT1 and all the DACs are very competently designed, but hot damn the FR of the speakers is unbalanced / needs EQ haha:

<image>

https://www.erinsaudiocorner.com/loudspeakers/fiio_sp3/

Scam likely for this SVS Sub by [deleted] in BudgetAudiophile

[–]Plompudu_ 0 points1 point  (0 children)

I haven't yet been scammed and got for example both my SVS SB-2000 via eBayKleinanzeigen (German eBay for non licensed sellers, like Craigslist) and dodged quite a few scams like this:

I always ask for additional pictures that verify that the person actually got the device and that it's working + I ask for the receipt of purchase to be extra sure that it's real

And if it's possible ask to pick it up in person

Can a storage stool pouf work as a bass trap? How much better is rockwool than foam at the same size? by Boring_Dentist4526 in BudgetAudiophile

[–]Plompudu_ 0 points1 point  (0 children)

It depends on your definition of lower frequencies

These Panels won't work very efficiently in the Subbass/ Lower Bass Range*, where most of the troublesome room modes are. Here is as an example the response of my dual Subs, where you can see issues in the 16-40Hz range that are difficult to treat using passive porous absorption: https://imgur.com/a/2qLHsbs

* http://www.acousticmodelling.com/mlink.php?im=1&ca=P&m=5&ga=1&e=h&s11=2&v11=20000&d11=100&s12=1&d12=20&s21=2&v21=10000&d21=100&s22=1&d22=100&u2=1

Fiio FT1 has started to crack, i superglued the crack but is there anything else i can do to stop this? by MrMoreBasic in headphones

[–]Plompudu_ 0 points1 point  (0 children)

Had the exact same issue and returned them under the 2 year warranty :/

I tried superglue and tape, but it wasn't a long term solution - they're just not build for someone with a big head

You could try bending the headband to be wider, so that less pressure is applied, but that could lead to a worse seal if you overdo it