* Posts by Jess

812 posts • joined 17 Jul 2007

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Apple boots Windows 7 out of Boot Camp

Jess
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Re: An odd decision by Apple

Abandoning Snow Leopard is quite annoying. it is the last OS that can run Power PC programs, that keeps many people on it. 32 bit machines (that includes those with 64 bit processors, but 32 bit firmware) cannot upgrade to the new free OSes.

Most Mac users I know are using SL (or earlier, on PPCs.) I can't see any reason to move to Yosemite (it's fugly too) other than software support being dropped, (and even Tiger on PPC still has well maintained Firefox and Thunderbird ports).

You pay a premium for Macs, but that is usually reflected in the quality and longevity of the devices (except when they have design faults) Good ones are usually perfectly usable at 10 years old. (I am typing this on a G5, which is far quicker than a *cheap* new PC.) So it is a dirty trick trying to pull the plugs so soon.

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Blackberry touts UNCERTIFIED 'secure' slab in hunt for public sector biz

Jess
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Re: Lots of claims .. Windows Phone

Windows Phone is supplied by an American Company and therefore subject to the patriot act. BB is Canadian and therefore not.

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Jess
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Re: whatsapp

Just curious how it could work without access to your contacts telephone numbers. Manually enter all your contacts to a separate database?

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Vodafone: Can't make calls on our network? Use Wi-Fi

Jess
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I had UMA on an old BlackBerry on Orange a few years ago.

It was quite good, but the newer phones don't seem to support it. I now have whatsapp for text and Bria for voice on my BB10 device.

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Price slashed on Reg-branded Swiss Army Knife

Jess
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Why is it not based on the cybertool?

So it would have tools useful for doing the job, rather than just celebrating after.

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Microsoft cuts Facebook Messenger, Google Talk from Outlook.com

Jess
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Re: What is that Outlook.com anyway?

It is the only way I know of using Skype on a PowerPC system. (text only) It is also useful as a destination for spam (i.e things that demand an email address)

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The BBC wants to slap a TAX on EVERYONE in BLIGHTY

Jess
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Re: people had to buy expensive monitors for their computers,

No they didn't. It was (and is) perfectly legal to use a TV as a computer monitor with no TV licence. What you need a licence for is to have it installed for reception or to use it for reception.

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Jess
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If the BBC becomes funded by a universal tax

that means it is directly funded by the government and then faces great pressure to lose its independence.

At least with the present tax on installation and use of equipment, there is some sort of correlation to its customers. If you don't like it, you can get rid of the TV.

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Windows XP's market share grows AGAIN!

Jess
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Re: why Microsoft don't make Win 10 operate just like Sinclair BASIC

Isn't that what they pretty much did with windows 8?

All the apps jumping full screen, so almost single tasking. And typing commands is the only reasonable way to do things on a desktop or laptop.

(OK realistically it has the feel of Windows 3.0, so only 2/3 as old, really)

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Linux clockpocalypse in 2038 is looming and there's no 'serious plan'

Jess
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Re: relies on time values and is over ten years old, let alone twenty

The machine I'm reading this is is over ten years old.

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Did NSA, GCHQ steal the secret key in YOUR phone SIM? It's LIKELY

Jess
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Re: renewables

It is an absurd assertion that non renewable could do that indefinitely. (By definition)

So your idea is use it all up and f*ck the great grand kids is it?

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Raspberry Pi, meet face: You're probably NOT Blighty's biggest PC maker!

Jess
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Re: Archimedes

RISC OS on the Pi works rather well.

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Patch now: Design flaw in Windows security allows hackers to own corporate laptops, PCs

Jess
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Re: decent wifi APs have isolated client stations

So as long as users are trained, to know the difference between a decent one and a poor one and only connect to those, all is fine.

Connect with another device first and check the netmask, perhaps?

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Boy, 16, cuffed after posting selfie with body of kid he allegedly killed

Jess
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Re: I wonder... Darwin Award?

It would seem likely that he will get at least life without parole.

That could arguably make him eligible for a Darwin award, anyway.

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$10,000 Ethernet cable promises BONKERS MP3 audio experience

Jess
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Re: I don't even know what "conductor non-linearity" is, but I bet it's undetectable..

> It means the resistance of the wire changes with temperature

That is an example, not the only case. (And I would think that the effect would be trivial, with respect to non-linearity, because the change would be related to the average power over the last part of a second, and so be a linear change to high frequencies.)

Another commenter posted an example of the type I was concerned about, far clearer than I managed.

My concern is the contact between the cable and the equipment. And in my experience this is far more important than the difference between decent cable and fantastic cable.

I never disagreed that shielding would cause capacitance. What I stated is that it is a different property.

More capacitance does not mean better shielding. Better shielding, *may* mean more capacitance. (example a pair of wires in the centre of a 6 inch copper pipe will be better shielded that a pair with a thin braid close to it, but less capacitance.)

But in speaker cables, I can't see capacitance ever being an issue that needs thought. (just like the insulation would only ever be an issue if you decided to use mains cables pulled out of a 1930s house for speaker cable).

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Jess
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Re: which would, theoretically, make the bass less controlled

not just theoretically, very noticeably.

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Jess
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Re: Semiconductor sulphides

The thing that gets me about plated plugs (especially gold) is the whole thing is plated, not just the areas that make contact. (I know sometimes plating the whole thing would be easier, but sometimes a separate part is needlessly plated.)

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Jess
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Re: Unidirectional Cables do exist.

Someone with no concept of star earthing appears to have down voted me.

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Jess
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Re: I don't even know what "conductor non-linearity" is, but I bet it's undetectable..

You're not Nigel Farage are you?

It means it does not have a linear relationship between current and voltage.

The time it will be important is when you have a loose connection or a dirty connection. It will cause distortion; harmonic and intermodulation.

When it is undetectable, you don't have a problem. Given the high dynamic range of human hearing, you don't need much distortion of this type to notice the sound isn't so good.

Good clean connections solve the problem. (Which would be why gold plated connectors are popular, not because they conduct better, they don't, but because they don't tarnish.)

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Jess
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Re: Only 3 qualities?

shielding is the rejection of other signals, it is a different quality to capacitance and can be achieved by star-quad arrangement that wont have the same capacitance issues as a co-axial arrangement.

Impedance isn't simple resistance, it includes reactance, which is the capactive/inductive part. A transmission line exhibits a characteristic impedance, which is what you would measure on an infinite length of it. It should be terminated with the same impedance, otherwise reflections happen. With audio the the reflections are *probably* negligible (in short cables), but with video and data they are not. (The cables have to have the correct characteristic impedance or you get distortion/data errors).

My theory of why the connection improves is just the two layers settling into each other under pressure over a few weeks, possibly current flow helps but possibly not. (You can buy contact enhancers, that presumably do the same effect.

I prefer tight grub screws, as I understand it, this gives effectively a cold weld.

Your original comment didn't limit it to audio. And I think skin effect would be more trivial that some of the effects I pointed out. There are many other properties that need to be right. (dielectric breakdown of the insulators is one that occurred to me since and another commenter pointed out dispersal - how did I forget that one?)

I don't disagree with the points you have raised other than the claiming they are the only points. If you limit yourself to certain scenarios they may be.

Many of the parameters are just 'have to do the job' parameters, in many situations. But not in all.

There is a big difference between audio interconnects and speaker cables. Your example of a stupidly high power system the insulation of the cable will have to be considered so it doesn't breakdown under high voltages. In interconnects the rejection of interfering signals is very important.

If you were to qualify the statement - e.g. to the speaker cables of a typical domestic hifi system, then I wouldn't take issue.

Another thought, the use of one way speakers (either in a full range design or an active crossover system) removes a load of the horrible reactance, meaning the amplifier doesn't need to be so beefy and the cable quality is less important. Hence why if you put a pair of Amstrad midi system speakers on an expensive hifi, they sound quite nice. It rarely works the other way around.

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Jess
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Re: HiFi Power cords

There is certainly a difference with a high power amplifier between an old power cable with corrosion on the power plug, and a nice shiney one.

I'm not convinced there is much between an nice clean kettle lead, and an expensive audiophile power cable though. Anywhere other than the power amplifier, I've not heard a difference.

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Jess
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Re: Only 3 qualities?

I know you mentioned shielding, but it wasn't in your list of 3.

All insulators conduct. It's just how much they do that determines how good an insulator they are.

Impedance mismatch (and impedance vs. frequency) has everything to do with the cable. A cable has a characteristic impedance, if it is not terminated correctly you get reflections.

Non-linearity is not simple resistance change, it is resistance changing against input. (An extreme example being a diode). It will cause distortion; intermodulation etc.

I was not referring to warming up, systems sounding better a few weeks after being installed. (Not having been switched on 24/7). An effect I noticed in the 80s after any significant change (i.e unplugging) of systems. Not dependent on a change of equipment or configuration. My hypothesis is that is is down to the physical connections bedding in, and becoming more linear resistance.

And no. It was an observation that I seek to make an explanation for. As I stated, it is the linearity of the connection between plug and socket that I suspect settles down.

And who said anything about digital systems? This is analogue, we are discussing.

Your statement was too sweeping. In different situations, different characteristics have different effects.

e.g. 100V line PA systems don't have the same issues with wire resistance that an 8 ohm system does,

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Jess
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Unidirectional Cables do exist.

If you do a star quad arrangement with a shield, that is only connected at one end, for example. The shield is then connected at the destination end.

However, for any cable with physical symmetry I have yet to be convinced there is any way for it to be directional.

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Jess
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Only 3 qualities?

> There are three qualities and only three qualities of a cable that affect its transmission of an AC signal:

That is wrong.

An obvious omission is shielding.

Another omission is self-inductance.

Conductance in the insulator.

Impedance mismatch between source, destination and transmission line.

Non-linearity in the conductor. (I believe this one could explain why some systems sound better after they have been used for a few weeks after being plugged up.)

And that is just off the top of my head.

However, you seem to be only thinking of speaker cable, and only the final one on my list is really significant.

Typical high quality domestic speakers are a difficult load for an amplifier, capacitance and inductance to deal with, plus moving cones that need their momentum controlled very quickly.

The biggest issue is resistance, and the two big issues are the thickness of the cable and the quality of the connections..

I believe the reason multi-strand cable is usually better, is due to it making a better connection to the plug or post. (as you say, skin effect is a bit irrelevant at audio frequencies)

I have found that using banana plugs seems better than just the binding posts. (The type where two grub screws clamp down on the cable.) And I got a noticeable improvement with locking banana plugs that splay the pin to make better contact. (Downside is when you have a builder who can't work out how to unlock them.) £8 a pair from Amazon. (Or £80 if you go for rhodium and snake oil plated).

Good engineering does make a difference to sound, however snake oil is very prevalent.

For my speakers I purchased 14 awg ofc cable and biwired them, each of those with two cables in parallel. using the locking banana plugs.

For interconnects I usually go for THX ultra certified cables.

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Microsoft: Even cheapo Lumias to get slimmed down Windows 10

Jess
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Re: With an utter lack of scientific and statistical rigour...

Possibly you live in a statistical blip?

Yesterday I was in a van and 66% of the phones were BB10, and the other a dumb-phone. Does that mean BB has 100% of the market?

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Jess
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best camera sensor, lens, maps / nav,...

I think I'd prefer a pureview 808

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Microsoft explains Windows as a SERVICE – but one version remains a distant dream

Jess
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Lifetime of the device.

Meaningless, because they haven't defined it.

So the lifetime of the device means until they drop support.

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RIP Windows RT: Microsoft murders ARM Surface, Nokia tablets

Jess
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re:Will you be able to upgrade win phone 8... - Yes

I seem to recall that at this stage in WP7's life it was expected that devices would get upgrades to WP8.

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Google, Amazon 'n' pals fork out for AdBlock Plus 'unblock' – report

Jess
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Re: I only use chrome for gmail,

I find the current gmail interface so horrible that I normally disable scripts for google on first use, then set it to plain html. (With Chrome the setting doesn't seem to stick when you re-enable).

However the best fix is Thunderbird.

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Windows is TAKING the TABLET market... what's left of it, anyway

Jess
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Re: I'd consider Surface more of a super ultrabook than a tablet

A good point. They are sold to be used as laptops, but register in the tablet figures.

Better for Microsoft, they don't look as sad in the tablet market, and it doesn't appear to laptop makers that they are taking their customers.

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Microsoft tells big biz: No free Windows 10 for you, crack wallets open

Jess
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Re: There has to be a catch somewhere.

My guess is that the free upgrade will be to a home version. (i.e no domain support). Not that business users will be ineligible, just that it will be of no use to them, so they have to pay.

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Jess
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Re: am I right in reading this..

Yes, I think so.

The only thing new is them actually saying it.

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You must have at least 8 inches for Windows 10 to go all the way

Jess
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Re: Apple just make stuff look lovely. No choice.

I'm not sure that Applies to Yosemite.

It looks vile compared to what has gone before. (OK still nicer than the best Windows.)

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Jess
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Re: No sense? Nonsense

A long time ago a reg commenter posted an opinion that metro was originally designed to run on a tablet that sits in the place of a keyboard and has a second monitor in the conventional position.

Out of the box Windows 8 is a POS on a single screen desktop, but on a dual screen it is quite usable. (One screen intercepts all jarring 1980s style switches to full screen, making the system a tad clumsy as opposed to absolutely vile).

If the small tablets allowed desktop apps on a second screen, and acted as the input device, I could see it working. The only real flaw is having an x86 processor on a tiny battery powered device.

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PEAK WINDOWS 7 may well be behind us

Jess
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XP offline W7 internet.

That seems an odd choice. (Unless it was a Windows 7 pro machine with downgrade rights).

XP offline and Mint for internet would seem a more logical arrangement.

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Turbocharged quad-core Raspberry Pi 2 unleashed, global geekgasm likely

Jess
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Maker community?

Has this been defined, or is it a vague term that will be defined later, when Microsoft have decided what they want to do?

Presumably the version will be an App store only version, reducing its usefulness. The question is whether it can be multibooted. A machine that can run windows, risc os, ubuntu, android and a media centre from a simple boot menu would be rather nice. You bypass the weakness of one system by using another as needed.

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What's that, Microsoft? Yep, a Lumia and Surface SALES BOOM

Jess
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The problem Microsoft has is

Windows needs to be on x86 to be worth the bother.

On small portable devices the processor of a bigger proportion of the power consumption and and the ARM is far more efficient, being a simpler device. And pretty much any improvement to the technology can be applied to both.

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Jess
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I was more than happy to replace my iPhone 4s with a Lumia 930.

because you don't mind replacing a walled garden with a walled flowerbed?

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FIVE Things (NOT 10: these are REAL) from the WINDOWS 10 event

Jess
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Touch screen on a laptop

Asking for RSI, as far as I can see.

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Free Windows 10 could mean the END for Microsoft and the PC biz

Jess
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- Stealing MS-DOS

Wasn't it selling MS/PCDOS before they'd actually bought it? (QDOS)

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Jess
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what does that mean exactly?

It means as long as the feel like it.

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2015: The year of MAD TV science, but who can keep up?

Jess
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Re: Content content content....

If there are +1 channel, then isn't the answer for the live channel to be HD and the plus one to be SD?

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Polish chap builds computer into a mouse

Jess
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Support?

This appears to be a new design, so it would need a high degree of success to be any use.

I would have though basing it on the Pi compute module would be far more sensible.

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Will fondleslab's fickle finger of fate help Windows 10?

Jess
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WIndows 10 is OKish

If they offer it for £25 like they did for Windows 8, I won't decline it this time. But if it costs much more I'll not bother.

But I'd prefer windows 7 (or 2000 were it supported).

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Windows XP beats 8.1 in December market share stats

Jess
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It could be that Christmas caused a lot of people who now use their phones or tablets most of the time to turn on the old XP machines they have saved for when they need a computer.

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UK retailers in TABLET PRICE SLASH BONANZA

Jess
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Re: I wouldn't recommend getting one now

I got one a year ago for about £50 I'm still very pleased with it.

£70 with charger is a decent price for the device.

It works nicely when paired to a BB phone with BlackBerry bridge.

It's a shame they have pretty much pulled the plugs on the system, were BB 10 available on it, it would have certainly been worth a lot more than £70

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Movie industry's evil plan to destroy the internet is going precisely nowhere

Jess
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Re: Control your media better.

DRM actively discourages me from buying things.

I have never purchased a DRMed download (I have got a couple of free ones.)

I avoided bluray for a long time, until I found a high end one in a charity shop for £25

I only buy cheap second hand BDs precisely because of the DRM. (I think I may have forked out £8 for Thor 2, but most are much cheaper, and a resale is no income to the studios anyway)

I would quite happily pay the asking price for new BD of movies I really liked, if they did not have DRM.

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No more free Windows... and now it’s all about the services

Jess
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Re: re-training 300 support staff and 3,500 users on Linux,

as opposed to retraining them on Windows 8.1 or OS X?

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Crack open more champagne, Satya, XP's snowballing to HELL

Jess
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Start from http://mintppc.org/

Thanks, but Mint 11 dropped out of support well over two years ago, so I don't see any advantage over Leopard (which has current versions of Firefox and Thunderbird)

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Jess
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Run's fine on my wife's G4 iBook as well.

Is that a supported version? If so, can you supply a link? (Assuming it will also work on a G5)

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