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Comments

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Can You Buy a License To Speed In California?

KozmoStevnNaut Re:European driver license allows infinit speed (324 comments)

The unrestricted parts of the autobahn have a advisory speed limit of 130km/h. If you are involved in an accident while travelling faster than that, it greatly increases your risk of being found at fault, depending on how fast your were going.

Going 200+km/h (125mph) basically guarantees that you will be found 100% at fault.

5 days ago
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How Cochlear Implants Are Being Blamed For Killing Deaf Culture

KozmoStevnNaut Re:Let it die (507 comments)

Thank you for playing, but you are wrong. Do not assume that you know even the slightest thing about me or my personal life.

For what it's worth, we split up amiably and she wanted to go back to her family at the other end of the country. We met fairly young, so we were actually both surprised that it had lasted as long as it did, we're still good friends and talk regularly.

She's also given up on being an interpretor. Now she works at a hospital, so perhaps she got sick of the bullshit Deaf attitude as well.

about a week ago
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How Cochlear Implants Are Being Blamed For Killing Deaf Culture

KozmoStevnNaut Re:Let it die (507 comments)

You're just a traitor to Epileptic culture!

*Goes to party*

*Has seizure*

*Gets pissed off at people trying to help, for "trying to deny my culture*

about a week ago
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How Cochlear Implants Are Being Blamed For Killing Deaf Culture

KozmoStevnNaut Re:Let it die (507 comments)

My ex-girlfriend is a certified sign language interpretor. Becoming one obviously requires you to immerse yourself in Deaf culture, and all of the teachers at the schools are deaf. I have met a lot of them, and while they are extremely friendly people, they are also staunchly conservative when it comes to things like cochlear implants and what they see as the erosion of Deaf culture. They truly do not see being deaf as a handicap, some of them even consider the ability to hear an unnecessary burden, as bizarre as that seems. An enormous amount of misinformation around implants is also constantly spread around the Deaf community, probably in a desperate attempt to keep people deaf.

Nothing quite like it exists among the blind, because being deaf is an enormous burden, and a much larger handicap. Deafness causes linguistic isolation, unlike being blind, which still allows you to communicate effectively with non-handicapped people.

The Deaf community needs to wise up and accept that being deaf is a handicap. We have the tools and technology to mitigate and almost eliminate this handicap.

There is a reason we don't see "Blind culture" or "Wheelchair-bound culture" or "Scoliosis culture" or whatever, and it's because creating an insular, conservative and backwards culture based on a handicap, and then claiming that particular handicap makes you superior to everyone else, is a monumentally stupid idea.

about a week ago
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Linux Developers Consider On-Screen QR Codes For Kernel Panics

KozmoStevnNaut Re:Dump kernel to serial printer (175 comments)

A lot of newer motherboards actually have hardware serial and parallel ports again. I've been looking at LGA 1150 motherboards, and I would estimate that at least half of them have those ports.

about two weeks ago
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Linus Torvalds Suspends Key Linux Developer

KozmoStevnNaut Re:hold on (641 comments)

Mr. Krabbs is voiced by the same guy who played the Kurgan in Highlander. Awesome actor, BTW.

about two weeks ago
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GNOME 3.12 Released

KozmoStevnNaut Re:Gnome = good (134 comments)

I tried KDE for a few weeks, it claims to be ultimately configurable. But you can't even do simple stuff like assign the meta key as a shortcut, or have a menu to the left of screen that works well. KDE is too much like the familiar but difficult Windows desktop paradigm.

Super/Meta is a modifier key. You wouldn't assign a shortcut directly to Ctrl or Alt, would you? If you truly want to use Super/Meta as a single-key shortcut, ksuperkey does what you want.

I've been using my main panel on the left ever since I got my 2560x1440 monitor. I assume that's what you meant by "menu to the left of screen". It works perfectly fine, BTW. Just drag the panel there and resize it a bit.

about three weeks ago
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Neovim: Rebuilding Vim For the 21st Century

KozmoStevnNaut Re:Never understood the modes (248 comments)

A lot of non-US keyboards have the semicolon key in a different location. For instance, on my (Danish) keyboard, semicolon is typed using shift-comma.

Bram chose HJKL because they're always on the same place on every standard keyboard, apart from Dvorak (but Dvorak sucks anyway).

about three weeks ago
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Neil Young's "Righteous" Pono Music Startup Raises $1 Million With Kickstarter

KozmoStevnNaut Re:Reality check (413 comments)

Looking at their website, they certainly pile on the audiophile bullshit claims. They also make fancy-pants cables, which sell for €375 for a set of 1 meter balanced XLR cables! If that's not a major red flag, I don't know what is.

I think I'll stick with companies like Adam, EVE, KRK, M-Audio, Behringer, ATC, PMC, Genelec and a host of other real audiophilia-free pro audio companies.

about a month ago
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Neil Young's "Righteous" Pono Music Startup Raises $1 Million With Kickstarter

KozmoStevnNaut Re:Reality check (413 comments)

The highend monitor setup you mention sounds a lot like maybe an ATC or PMC setup. Seriously nice stuff.

about 1 month ago
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Neil Young's "Righteous" Pono Music Startup Raises $1 Million With Kickstarter

KozmoStevnNaut Re:Reality check (413 comments)

I also agree that the way forward is towards active bi/tri-amped speakers, ideally with dsp processing both the speaker response and doing proper room adjustment. Genelec is one of the brands that offer this, at a hefty price. I use bi-amped KRK monitors in my computer room. Fun to do occasional home movie edits on, and a true pleasure for listening.

Mine are Adam A5Xs supported by a decent active hifi sub. Best setup I've ever had. Genelecs are very nice, I know that one of the national TV stations in my country use Genelecs exclusively everywhere in their production chain. I've heard that EVE makes awesome monitors as well, with built-in DSP (they're former Adam people, hence the name).

about a month ago
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Neil Young's "Righteous" Pono Music Startup Raises $1 Million With Kickstarter

KozmoStevnNaut Re:Reality check (413 comments)

Well ok yeah, theoretically a record can have frequency response up to and over 50kHz, but in practice it's extremely wear-sensitive and even a pristine record is nowhere near linear above even 12-15kHz. To replicate a quadraphonic record on a CD, the best solution would be to do some tricks with matrix encoding and phase shifting to pack a surround sound signal into two audio channels. This is in fact exactly how Dolby Pro Logic works.

And I agree 100% that mastering is generally shit these days. I am actually listening to Post Orgasmic Chill by Skunk Anansie right now, and even though the music is loud and angry and peaks near 0dBFS on a couple of tracks, there are plenty of dynamics and no clipping at all. Even just looking as the waveform shows that it it not brickwalled in any way, you can see the dynamics! Everything sounds good at low volumes and bloody amazing when played loud, and Skin's voice is so goddamned amazing, both in her singing ability, but also in the quality of the recording. Comparing it to basically any similar rock record released in the last couple of years shows just how shitty mastering has gotten since 1999.

about a month ago
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Neil Young's "Righteous" Pono Music Startup Raises $1 Million With Kickstarter

KozmoStevnNaut Re:Reality check (413 comments)

Your premise is flawed, there is no such thing as a decent hifi dealer. They all push ridiculously priced cables and bullshit audiophilia.

Regardless, what you're describing is not a double blind test. The salesperson knows which amplifier is playing, and has a vested interest in selling you a new piece of equipment. I have personally seen salespeople adjust the volume slightly when changing between two different piece of equipment in a listening test. It's one of the oldest tricks in the book, as we tend to hear a slight (less than 1dB) increase in volume as an increase in sound quality. When challenged, they either vehemently deny doing it, or claim that they were "matching the levels", as if that was possible by ear only.

Please define "a good CD player", as even my old Pioneer PD-306 sounded absolutely 100% identical when playing through the analog output and when switched to the TOSLINK output through an external DAC. And that was a pretty standard black-with-gold-lettering mid-90s consumer CD player, nothing special at all.

Your talk of finding a "good for music" preamp is similarly silly. As long as the preamp is linear 20Hz-20kHz and has low distortion plus a decent SNR, you're golden. I'll admit that I'm guilty of overspending a bit for my preamp, a NAD C165BEE. Unfortunately preamps seems to be ridiculously priced everywhere, even more expensive than the integrated amps from the same manufacturers, probably for stupid audiophile reasons. But since I'm using active speakers and I figure I'll never have to buy another preamp ever, I can live with that.

Besides, all this amplifier talk is irrelevant, the time has passed for passive speakers. My current setup each speaker has an active crossover and 2x50W of amplification, tailored specifically for the cabinets and driver units, and it sounds better than any amp+passive speaker setup I have ever heard. Nothing else has come even close for vocals and detail.

about a month ago
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Neil Young's "Righteous" Pono Music Startup Raises $1 Million With Kickstarter

KozmoStevnNaut Re:Reality check (413 comments)

Would you be able to back up your perception of this difference with a double blind ABX test?

about a month ago
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Neil Young's "Righteous" Pono Music Startup Raises $1 Million With Kickstarter

KozmoStevnNaut Re:Reality check (413 comments)

They sound every bit the same as any other competent preamp or power amp.

I will concede that there may be a slight sonic difference in the performance of their DACs, but most likely one that is completely inaudible compared to something like a $30 FiiO D3.

about a month ago
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Neil Young's "Righteous" Pono Music Startup Raises $1 Million With Kickstarter

KozmoStevnNaut Re:So much marketing, so little fact (413 comments)

24bit doesn't provide that. Or to put it another way, 16bit provides that exactly as well as 24bit does.

All 24bit buys your is more range between the quietest possible sound and the loudest possible sound that can be recorded, it doesn't add anything "between" the levels, if that's what you're seeking. In fact, there is nothing "lost between the levels" as some people claim, because the sound output is a mathematical recreation with pretty much infinite possible levels within the sample rate and dynamic range the format allows. http://xiph.org/video/vid2.sht... explains all this extremely well.

24bit (and 32bit float) only matter during the recording and mastering process, where you want as much headroom as possible to prevent clipped samples. Once everything is nice and properly mixed and mastered, even the most dynamic soundtracks and music fit easily within the 16bit.

about a month ago
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Neil Young's "Righteous" Pono Music Startup Raises $1 Million With Kickstarter

KozmoStevnNaut Re:So much marketing, so little fact (413 comments)

I'd say the perfect format would be 48kHz/24bit. 48kHz to have plenty of room for a nice frequency cutoff, and 24-bit for music with a high dynamic range, like film scores and orchestral.

44.1kHz leaves plenty of room for a decent frequency cutoff, especially with modern active and digital low pass filters. However, I will concede that 48kHz is a "nicer" ratio and makes it easier to work together with pro audio, which always works in 48, 96, 192kHz instead of 44.1, 88.2, 176.4kHz. The CD should have been 48kHz from the beginning, like DAT, which the pros used back then.

And where would you ever need even the base 144dB dynamic range of 24bit audio for playback? Keep in mind that the threshold of pain is somewhere around 120dB, so a 24bit recording could potentially capture both the sound of a lightbulb humming and a gunshot that would literally tear your eardrum, in the same track. But you've never heard a lightbulb hum, because even the softest ambient noise drowns it out.

16bit audio has a base dynamic range of 96dB. This increases to over 110dB when using proper noise shaped dither. You really, honestly, truthfully will never need more than that for audio playback. Even extremely well-mastered orchestral music "only" has a dynamic range of 40-50dB.

about a month ago
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Neil Young's "Righteous" Pono Music Startup Raises $1 Million With Kickstarter

KozmoStevnNaut Re:Oh audiophiles (413 comments)

Yeah well, there is a lot of crap in audiophilia but there is equally a lot of crap rejecting it blindly.
In theory a dirt cheap cd or blu ray player and an expensive one have very similar paper specifications for audio. That is what scientific measurements would tell you.

However if you listen on a good system the sound quality difference between the cheap and the expensive player is immediately obvious, without needing to be an audiophile maniac.

Similarly I compared a few D/A convertors, as I had a few sources with only optical out (such as an Apple TV, and a blu-ray player with only hdmi and optical) and an old but good analogue-only amp. Well, there was a subtle difference between the models up to say $800. I could always pick the same one which was a bit better than the other 2 I compared against. Not much difference but it was there.

The only reason you could pick between them was because you already knew which one was playing. Try a true double blind ABX test, you will be surprised at the results.

Here's an example: http://matrixhifi.com/ENG_ppec...

A high-class hifi system set up against a cheap Sony DVD player (boo!) and a Behringer amplifier (hiss!), using cheap-ass cables (the horror!), all placed on a rickety chair (madness!). And yet, even seasoned audiophiles were not able to hear a lick of difference.

Audiophilia is bullshit, pure and simple. If fidelity truly was the only goal, everyone would be using a set of Adam A7X or S1X monitors and a digital source. But audiophilia is a rich man's disease where the only objective is to outspend the other suckers.

about a month ago

Submissions

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MIT flow battery tech could benefit electric cars

KozmoStevnNaut KozmoStevnNaut writes  |  more than 2 years ago

KozmoStevnNaut writes "Researchers at MIT have developed an improved version of flow battery technology, which they claim could provide at large boost in usability for electric vehicles.

From the article: "Solid particles are suspended in a carrier liquid and pumped through the system. In this design, the battery's active components — the positive and negative electrodes, or cathodes and anodes — are composed of particles suspended in a liquid electrolyte."

The researchers claim this could enable recharging times for electric cars on par with refueling times for conventional ICE vehicles. They envision replacing a vehicle's spent battery liquid with freshly charged liquid using conventional pumping technology. The spent liquid can then be recharged and reused."

Link to Original Source

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