Yearly Archives: 2011

Arctic Sound P311 headphones

iPad

A wireless solution.

Headphones? What’s that doing here? Well, show me someone not interested in music and the movies and I’ll show you one who cannot take a photograph.

One of the cheapest – yet most vital – components of my HackPro desktop is the extremely thin layer of conducting Arctic Silver thermal paste between the case of the Core2Quad CPU and the Coolermaster radiator which keeps the CPU cool as a cucumber. The maker of that paste, beloved of all computer builders, also makes headphones.

For a long while now I have been using a pair of Sennheiser PX100 corded headphones for listening to music and watching movies on the iPhone and iPad. They are over the ear, comfortable and the sound is fine. They cost $60-70. Folding them into the provided clamshell case requires a degree in astrophysics, but once you get the hang of it there’s lots of innocent fun to be had and money to be made betting friends they can’t get them into the case! Indeed, I just had the satisfaction the other week of taking $2 off our nine year old who quit in frustration. One back for the old man!

But that bet cost me, as somehow the cord got frayed and is now literally hanging by a thread. So I searched around for a wireless alternative which might better survive our boy’s ministrations, and settled on the Arctic Sound P311 at $30, a Bluetooth headphone which requires no wired connection.

The manufacturer claims a 20 hour life per charge, and charging is through the provided USB cable from any computer, so there’s no additional charger to carry. All you need is the mini-USB cable and your laptop or desktop. The iPad’s battery life on streamed Netflix movies is a consistent 11 hours, so as long as the headphones’ battery lasts 11 hours or more things are fine. Charge the iPad, charge the ‘phones. My ‘phones shipped partially charged, needing just 90 minute to full charge, indicated by the red charging LED being extinguished. The maker says a full charge takes 2 hours. The bottom line is that a 2 hour charge to get 20 hours of use is far faster and longer than recharging an iPad will get you, so the iPad remains your limiting factor in practical use as far as recharging goes.

Charging light on. This changes to alternating red/blue when pairing – see below.

My primary use is for iPad movies, but the ‘phones work fine with my rather dated iPhone 3G, my HackPro (which uses an iOGear BT dongle), the MacBook Air and the MacMini used as a home theater computer. The latter is handy as you can listen to movies on your big screen TV using these Bluetooth headphones, and disturb no one during a spot of late night viewing. On the iDevices pairing is simply a question of holding down the button on the right headset for a few seconds until you get alternating red and blue LEDs, then going to Settings->General->Bluetooth. On desktops and laptops you go to System Preferences-> and have at it. In all cases, disconnect the existing Bluetooth connection or things get hairy and be sure you are not charging the ‘phones while you do this – I had no luck pairing while charging.

Here are some screenshots of the pairing process.

Pairing on an iDevice:

Step 1

Step 2

Select the Eq which suits your ears best – forget what it’s called, go with your ears:

Step 3

Pairing on a laptop or desktop:

Step 1 – System Preferences

Step 2 – Paired.

Step 3. System Preferences->Sound. Redirect the output to the headphones.

Use with AppleTV2:

As TUAW confirms, ATV2 includes a Bluetooth chip but it is not accessible in the device as shipped. Frustrating. You can hack your ATV2 to make BT work but it’s likely that future software updates will reverse the hack, so I’m leaving it alone for now. Hopefully Apple will add a Bluetooth switch in its ATV2 software. Meanwhile, rumors suggest that the next ATV OS update will add Bluetooth functionality to ATV2. That will be great if it happens.

These ‘phones fit over the ear (Van Gogh need not apply), like the Sennheisers, but rather than using a sprung steel band across the top of your head to provide grip, they hook over each ear instead with the connecting band serving no mechanical purpose other than connecting the two speakers and providing a route for the wire buried within, to get sound to both ears.

The P311 headphones over the ear, showing the controls.
No problem when wearing glasses, either.

The volume control buttons are visible above; the other two black buttons are for fast forward and reverse (next/previous track) and the center button is on/off/pause/answering phone calls. All controls worked perfectly with the iPod app on my iPhone and iPad.

The P311s comes with a nice, semi hard case. The earspeakers are folded in eyeglasses-style, and the astrophysics degree you just got to put away your Sennheisers is now useless:

Sound: I tested the ‘phones on classical piano and on Ken Russell’s extraordinary movie ‘Mahler‘. The sound is excellent. You won’t get earth shaking bass from speakers this small (especially given their low level of sealing to the ear) but experimenting with the EQ settings in an iDevice (see above) gets you the best sound, based on your hearing. Both the iDevice and P311 volume controls remain functional so you can mute from either. Pausing using the big, central button on the right speaker also pauses the movie or iPod on your iDevice.

Despite fitting lightly over the ears, these provide a fair amount of sound isolation. You are not sealed from the outside world but there is a significant amount of noise reduction. Best as I can tell there is no electronic noise cancellation technology in the P311s.

Comfort: If you tilt your head back the crossbar will strike the base of your neck and try to displace the ‘phones. Whether that’s an issue only you can decide. In practice it suggests these ‘phones may be sub-optimal for aggressive work out routines. The picture of the acrobat on Arctic’s web site strikes me as ludicrous.That’s not what I use them for so I cannot comment.

Microphone: There’s a built-in mic for use with the iPhone. I have not tested it.

Range: Extraordinary. There is no loss of signal until you are over 40 feet from either iPad or iPod, despite intervening walls and a staircase. This translates, in practice, into ‘walk-about’ functionality in the average home without having to take your sound source with you

* * * * *

A fine set of phones at a great price and a worthy replacement for my damaged Sennheisers. There’s the inconvenience of having to recharge these, but as their battery life exceeds that of the related iPad I use them with, it’s hardly an issue, as I simply recharge both simultaneously. BT pairing on the five devices I tested – iPhone 3G, iPad, HackPro, MacMini and MacBook Air was flawless. Let’s hope pairing with the AppleTV2 arrives with the next ATV OS update. Recommended, but try them first to see if they are comfortable for you.

Most importantly, cordless ‘phones transform an iPad from “I’m not going to lug that around” to a functional music source, whether from stored music, your Home Sharing or, soon the iCloud.

ClamXav

Software

Mac virus scan.

Macs don’t get viruses. Well, OK, not much anyway.

In my decade of using Macs I have never run any anti-virus software and, as far as I know, never got a virus. If I have it has made no difference, as I have seen the grey OS ‘kernel panic’ screen maybe three or four times in that decade (absent when hacking and it was my own fault!). The last time this happened in regular use was maybe 4 years ago, so it’s not like I’m worrying.

This is why I tend to view the scare stories put out now and then by the major anti-virus app makers – McAfee and Norton – as so much disinformation intended to ramp up sales of their products. Indeed, while Apple constantly patches security holes in its Apps, the first time I recall them making an OS update for a virus was the 10.6.8 update of Snow Leopard a few weeks ago to stave off the MacDefender virus, whose Russian creator was just arrested a few days ago. The virus was funded by ChronoPay, Russia’s PayPal and evidently a brother under the skin when it comes to business ethics. Doubtless, they are paying off the KGB as you are reading this. (That’s Russia’s version of the plea bargain – Putin gets richer and life goes on as usual). What Apple was really staving off is user stupidity. This thing would pop up on the screen from nowhere asking you to download an anti-virus program, and would infect your Mac once you did so. Well, there’s one born every minute, as the old saying has it.

The other common invasion attempt is emails from fraudsters representing themselves as PayPal and asking that you ‘update your information’, part of which ‘update’ requires you enter your password. Well, duh! Known as ‘phishing’, the victim here deserves everything he gets and finds out soon enough when his PayPal account has been emptied. So now instead of PayPal and their partner in crime, eBay, cheating you, someone else has. Same difference. Good luck recovering a dime from PayPal, by the way.

However, the other day my eye was caught by a free virus scan utility curiously named ClamXav. A Mac source mentioned it so I downloaded it and scanned the 1tB HDD where my data – some 650gB – reside. 311 minutes later it reported 7 viruses among the 3 million + files it had scanned, all being phishing viruses in deleted and unopened emails. I zapped those and went away happy. Note to self: Trash deleted emails in future. Not bad when you consider those data files had gone through many migrations among successive machines over the past decade.

You can download ClamXav by clicking the picture below; the maker says its fully compatible back to OS Tiger, 10.4:

Click the picture to go to the ClamXav download page.

You really want to set this up on a ‘set-and-forget’ schedule, so after doing the first lengthy scan of all my data drives, I set ClamXav to do a daily virus definition update and to scan just my data directory (10 minutes) right after, thus:

Daily update and scan setting in ClamXav.

I’m using the app with OS 10.7 Lion, and tell ClamXav to quarantine infected files in a separate directory whence they are easily zapped. Remember to Empty Trash after deleting the bad files. Be sure to download it using the above link; the version downloadable from the Apple AppStore does not have full functionality, for some reason lost on me.

Whaler’s cabin

Photographs

At Point Lobos.

My annual trip to enjoy the wonders of Point Lobos was spoiled this year by the fact that the Bird Rock area, where you can see cormorants tending their young on stick nests placed on bare rock, was closed off for repairs. Not that that stopped the State of California charging the full entrance fee which, had I known of the closure, I would have refused to pay.

Still, there is always much to see and revel in here. Take this whalers’ cabin:

Whalers’ Cabin, Point Lobos. G1, kit lens @ 14mm, 1/160, f/5,6, ISO 320.

The cabin overlooks Whalers’ Cove. Like your Mac it was built by slave Chinese laborers, this one in the 1850s. It will outlast your iPad. Slaughtered whales were processed here in the years 1862-79 and many of the tools of the trade – killing weapons, pots for melting blubber, primitive diving suits and so on are well displayed here.

Worth a visit, especially when Bird Rock is closed.

The Alien

Photographers

The boy can see.

Responding to excited squeals of “Daddy! Daddy! Look, look! It’s an alien” I did the only reasonable thing possible and handed our 9 year old a camera.

G1, kit lens @ 17mm, 1/1000, f/5.6. Picture by Winston Hofler.

There’s no denying the boy has an eye. A large print of this now hangs on his bedroom wall.

Snapped at Bean Hollow beach on the way down to Monterey, where Winnie rejoiced in once again petting the sting rays at the Aquarium.

The future of the desktop computer

Computing

The end of the desktop era.

The latest changes to my Hackintosh, which now see it once more delivering performance comparable to the best top-of-the-line Macs at no additional cost, raise the question of what the future holds.

The original design brief for the Hackintosh, which FU Steve built for me, was reliability, with a primary focus on proper cooling of components. Secondary requirements were speed and expandability. At the time of construction, two years ago, I anticipated the HackPro might enjoy a five year useful life. I am now inclined to think that was an underestimate.

If you compare the specs of Intel’s current i3/i5/i7 CPUs, which succeeded the Core2Duo and Core2Quad design (still made and still popular in PCs) the main difference is not in speed but in power consumption. The latest graphics cards barely improve on the Nvidia 9800GTX+. Intel is bowing to the trend which favors mobile computing, meaning laptops, where battery power use is important. Low power consumption CPUs with integrated GPUs add more value than greater speed. And adding more cores is futile. Absent some exotic statistical math applications, plus super speed weather/military computers and the like, multi-core CPUs are wasted on what we photographers use daily. For that matter, four cores are largely wasted, poor application programming failing to make effective use of the available parallel processing potential. Don’t believe me – run Lightroom on a 2 core then a 4 core CPU. Notice any difference?

Since the HackPro was built, iOS and Android, cell and tablet operating systems, have taken the world by storm. While nowhere near as fast as desktop/laptop OSs, they add a whole range of capabilities – fast AppStore downloads, huge app selections, touch interfaces, great UIs – which are quickly migrating the desktop and laptop to the category of mature technologies. The return on incremental investment in these latter technologies falls daily, as Mobile is where the money is. Four years ago Apple introduced the iPhone. Today the iPhone and iPad account for three quarters of the company’s sales! The consequences of this trend are that desktop development will slow to a crawl and prices will cease falling as sales volumes fall. Sure, there will always be demand from artists, scientists, cinematographers and photographers for heavy duty iron but that population is minuscule.

Desptop/laptop OSs have also peaked. Windows 7 (I have not used it so this is apocryphal) is reported to be reliable (a twenty year miracle in the making) and speedy, and OS Lion may well be the last major version of OS X, though after using Lion for a while it’s clear that the changes are very minor ones in UI cosmetics and add little benefit for the working stiff. You aren’t going to make your machine any faster by installing Lion, that much is certain, though users ought to be grateful for an absence of code bloat and forced hardware updates, for the most part.

Desktop applications are likewise mature. Adobe isn’t about to fix the execrable UI of Photoshop when it has a static audience which will dutifully upgrade every 18 months for minor improvements at the margin, using corporate money. And they can’t add too many of PS’s features to the far friendlier Lightroom for fear of cannibalizing their cash cow. But I am happy to wager that they are working like stink on mobile versions of their apps. Sure, some apps like Pixelmator will capture amateur users who (rightly) balk at CS5’s ridiculous price, but the design pro has zero incentive to save his employer money or to risk his career on an unknown quantity, no matter how good.

Dinosaurs. The HackPro and its patrician brother.

The biggest benefits to desktop users in recent years have come from flash storage Solid State Drives and improving broadband, both technologies being pushed to improve by burgeoning demand for mobile devices. Intel’s Light Peak data transfer technology (Apple calls it Thunderbolt) will increase wired data transfer rates ten fold while cutting the number of connecting cables. LCD monitor technology has reached price-quality equilibrium. Who needs higher definition or larger screens than what those already afforded at reasonable cost today? What the world needs is faster broadband and better batteries, not faster CPUs or better displays.

I look at our 9 year old son. I would far rather he learned the iPad, maybe with the eventual addition of a keyboard, than an iMac. If he wants a big screen display it’s there at the touch of an icon, no wires needed. Wikipedia has obsoleted space gobbling encyclopedias and access is instantaneous. His music is accessible anywhere, he can print anywhere (if he even cares what a printer actually is) and even he can lug around the modest weight of a tablet all day. He has access to millions of books and thousands of newspapers at no weight or storage cost and his tools for learning math and spelling are all there at a touch. If he gets serious about taking pictures, all the processing power he will ever need will be on his tablet in a year or two and the camera will likely be a part of that tablet too. And I will be making sure that one of the developed world’s worst educational systems – it’s called US schooling – will not stand in his way.

So why force him to learn yesterday’s technology?

Those magnificent dinosaurs, the desktop computers of our time, will soldier on in dwindling numbers for a generation yet, after which time they will be so much landfill.