what Katy might do?

One of those days when the weather changes in minutes.

It's like we have already moved into April a few days early.

The cherry blossom is back on the tree, but I'm wondering whether Katy is about to change all that.

time for an iTunes reshuffle

Away for part of Easter and an ideal time to run some of those long duration batch jobs to tidy some of the rashbre file system. Aside from the ongoing routine backup, the main chore at the moment is cleaning up iTunes, which in my case contains both music and video.

I've done that thing where you select File/Library/Consolidate and iTunes speedily rebuilt its directories into a much tidier form. I think the prior mess was a consequence of various generations of iTunes having different spaghetti ideas about how to organise.

The tidy-up is one of those simple push-a-button things. However, it shouldn't be undertaken lightly because it does completely re-organise the iTunes structure.

Afterwards, I wanted to ensure iCloud hadn't hi-jacked various files. That's the part that takes the longest, because there were still around 1,000 files that were in a state of cloud confusion.

I've since clicked the little iTunes iCloud button to sort it all out, but it will take a day or so to process, even on quite a fast internet connection. The main reason I'm doing this is to get the best quality legitimate versions of all of the music and videos, based upon the index entries in my iTunes directory.

Then I must backup the newly recrafted iTunes directories, using Chronosync.

I've decided to move the prior backups out of the way and to create new fresh clean ones, in effect streamlining the whole file structure. I noticed the Master iTunes directory has crept up to just over 2TB of disk. That'll be the digital video content I suppose.

Anyway, by the time I get back, it should all have rearranged itself nicely.

wet motorway jams and the heavyside and lightside sectoral balance

A change of plan today, on the basis that the roads could be rather overloaded. It looks as if I was right to follow the advice to not travel.

That was even before the rain started.

But yippee, it's easter, so we can have a few days break.

Just like all the traders selling shares defensively against unexpected news during their time off.

Red = Down and Blue = Up. That redness of the FTSE100 looks fairly down to me?

Except for blue spots on betting shops this sporty weekend and, curiously enough, for the makers of motorway concrete.

I think I can see why there's enduring strength in motorway construction.

so the new iPhone looks like the old excellent industrially designed iPhone?

The announcements about the newest iPhone are more muted because it is, after all, a device that looks like one of their previous generation designs.

For me this is great news.

My existing phone still does great service, although I often use a battery pack to keep it working for a full day. I've had occasions when the phone has been at 45% by 10:00 in the morning, when I'm doing busy things around London. That's more about me than the phone though.

The svelte 5s design is still, for me, a winner and I'm pleased to see that Apple have figured a way to cram just about all of the electronics of the 6s series into the 5 (SE) shell. For once, if I update, then I won't need to change my car accessory holder again.

I'm probably not exactly the target market for the SE (I assume that's the 7), but the SE could well be a useful way to get better battery life, near-field Pay and improved camera capabilities for what amounts to about 55% the price of my original device - And still be able to use the old accessories with it.

As Apple sets its sights on China and India, these smaller form factor and less expensive units become their gateway devices.

I assume they will prefer to ship as many units as possible with the Pay facility, which they can also link to their wider plans in these markets.

The share price hasn't moved much yet, but I'll guess there will be action as the implications of these relatively modest sounding announcements become apparent.

should i stay or should i go?

One of the things we covered when I studied economics was the role of government to encourage stability and reduce uncertainty.

Later, a European boss of mine used to refer to the need for things to be 'boringly predictable'; I knew what he meant. Kind of 'Say it, Do it.'

I can understand these sentiments for the big picture. If the future path of government policy is uncertain, it raises risk premiums and can lead businesses and individuals to delay spending and investment.

If there is uncertainty about the monetary or fiscal policy, the tax or regulatory regime, or even over voting outcomes then it all gets added into risk pricing.

Our leadership, here in the UK, seems to have just about all of these effects.

Government spending has swung around with inaccurate forecasts from no less than the Chancellor himself.

The current fiscal mandate is being challenged by many economists who think that (a) the target for 2019/20 is misguided and (b) it will be missed in any case.

Some politicised tax changes were announced in the budget and then rescinded within a couple of days.

This introduced a new gap on top of the unexplained prior gap and both are currently left hanging and unaccounted for.

There's stealth measures around tax credit cuts that no-one is yet spotting but probably the chancellor relies upon.

The GBP to USD is bouncing around about its five year low.

The main parties are themselves divided and at least two of them have rumours about new leaders, ranging from Boris Johnson for the Tories and Dan Jarvis for Labour.

In both cases the popular date for this further upheaval is just after the referendum.

With that still to decide, as The Clash might say, "Should I stay or should I go?"

fire up the fitbit

I've re-gobbledegooked my fitbit so that it is working properly again. It went through one of those phases where the device sulkily folded its arms and said it wouldn't re-sync with anything. It was a few days before I realised and noticed that my position in my family and friends league table had slid away to the very last position.

After I re-installed the sync software, a combination of recharging it, pressing the button for 10 seconds and then re-synchronising it eventually worked. Yay, hop, skip and jump (3 steps).

I still prefer the hidden type of fitbit device, not wanting to sport a plastic LED readout on my wrist.

Curiously most of the newer device types are not designed to be hidden, and if anything are becoming larger visible devices. Not just from fitbit, but all of the other manufacturers as well.

This summer it will be three years since I first walked fitbit along the beach in Santa Barbara. That's apparently 11,242,616 steps. Perhaps it just needed a break?

i finally see the martian movie

I finally got around to seeing Ridley Scott's 'The Martian', the space movie about a biologist (Matt Damon) getting trapped on Mars after a space mission goes awry.

The movie has been on my list to watch, along with my slight intrigue to compare this Matt Damon character with his Dr Mann in Interstellar, an astronaut stranded on a planet the other side of a wormhole.

The Martian becomes a classic space rescue movie, in the vein of Apollo 13 or Gravity, with maybe some Silent Running thrown in for good measure.

I quite enjoy this type of space film, closer to reality than Star Wars / Star Trek franchise movies.

Admittedly this one still glossed over the reduced gravity and -60 C temperatures on Mars. It also had the inevitable explanation of a science point with a couple of cups and a biro, but it still made for a good story. If thrillers have MacGuffins, then this type of space movie's alternative is to include slingshot gravitational effects.

I was intrigued to see the movie is classified as a comedy, but maybe that's on some kind of special Ridley Scott scale, where the cat scene from Alien is also comedic.

choreographed responses

The unravelling following the budget is already bringing out co-ordinated responses from a group of government MPs. The briefing appears to be along the lines that "we are all great friends with Mr. Duncan-Smith, but don't agree with him on this issue" (sometimes adding that it is part of a EU exit diversion).

I listened to the Iain Duncan-Smith interview with Andrew Marr at the weekend and it seemed clear that ID-S was mainly championing welfare reduction of inequality and that this had little to do with EU arguments. He has run his welfare positioning for at least the last eight years and it is not something hastily assembled as a back-story.

Rather, the situation seemed to reveal someone cornered by the political machinations of his party, a party determined to use the rule of spreadsheet to achieve its ends.

That's not to say that ID-S schemes have worked. He is no project manager. Among other things, Universal Credits delayed and overran, with Osborne now stealthily using them as a vehicle to re-introduce tax credit cuts. Universal Cuts, one might say.

By now the political landscape has all changed. IDS resigned from the Cabinet and already speedily replaced. Cameron has slammed the brakes onto Osborne's 'take from disabled' scheme and rank and file conservatives are being wheeled out to replay the party line version of events. Corbyn has hinted that Osborne should 'consider his position'. Politics as a twitch game.

Disruption coverage assures that the signal to noise over the next few days will be low, and I expect there is already a team looking out for a good diversionary story to overtake this in the news.

I'll go back to my jelly steering wheel viewpoint from a few weeks ago. Maybe with Ant and Dec driving.

bitter sweet or some other coke and osborne headline

Aside from sprinkling sweet Oofle dust across the budget, our Chancellor has magic'd away some of the more awkward parts. His central mandate is around achieving fiscal balance by 2019-2020.

I decided to take a look at the post-budget Office for Budget Responsibility (OBR) charts and tables. In my opinion, the big charts now show a 55% probability of hitting George's target by 2019-2020.

I've referred in the past to smudging, that technique to blur the later outcomes of graphs, but I'm wondering if George might need to do something more 'Frank Underwood' in nature to be sure of success.

The House of Cards man would change the game, and I suppose that's a possibility for George.

Looking at the big numbers in OBR, there's a couple of inevitable major contributors to the chance of a miss, in the form of the RDEL and CDEL (run rate and capital expenditure) by the government. It has already been a problem this year for George, who doesn't want to borrow money even when it is very cheap.

So maybe some reclassifications could help swing things around? We'll need to pay close attention over the next year or so to see whether any new accounting miracles occur. It is surprisingly difficult to keep track of the various pots of money that get shifted around, like a version of that shell game played on Westminster Bridge.

I took a look at the changes to the forecast numbers since last November - just three and a half months ago. There's that £18 billion swing and the new measures to bring it all back in line.

Maybe some fundraising via sell-offs will be used to increase the chance of success? Beyond the delayed Lloyds Bank sell off, there's a chunk of UKAR on the books.

UKAR is the now discounted ex-Northern Rock and Bradford and Bingley business which is still in government ownership. Even for that, late last year they added the Help to Buy ISA into that organisation's remit, so tracking the value of any sell-off is already more complicated.

But, like that shell game, distraction and palming are part of a political skill-set. Izzy whizzy, let's get busy, as Sooty might say.

look out for the helicopters

I was easy to spot that the budget was happening today, if you were anywhere near to Parliament.

I was just over the river on the South Bank and it was easy to hear and then see the helicopters hovering over the Palace of Westminster, no doubt to film the Chancellor en-route from Downing Street. Look carefully and you'll see two in the photo above.

mimi disrupts my hearing

I thought I'd try that Mimi music system, after reading about it on the FAQ blog a couple of days ago.

It starts with a hearing test, which I flunked completely the first time. I followed the instructions and plugged in a pair of Sennheiser headphones. The iPhone App even showed a little picture of Sennheiser headphones before I started the test.

Then it pumped out a couple of test tones at 500 Hz. Left ear or right? I couldn't hear anything. I waited and eventually after about a minute I pressed the 'heard it' button anyway. No, it said, you pressed too early.

I restarted the test. This time I waited a couple of minutes. Apparently no tone but it still let me go to the next signal. Same pattern. My hearing must be really bad as I haven't heard any of the tones. Another long wait.

I abandon the test until later.

Second attempt, I swap out my fancy Sennheisers. I've always liked Sennheiser headphones since the time I first tried HD414s and couldn't believe how amazing the sound could be from such a plasticy-looking headset. My original HD414s died long ago, when one of the membranes cracked, but I've stuck with Sennheisers pretty much since that time.

However, for this test I'm using the Apple EarPods. The type that come with the iPhone.

Re-run the test and this time it worked. Mimi were quite serious about the software only working with certain types of earpiece. This time I could hear the various tones in each ear, although in the gaps I could also hear a distant Radio 4 broadcast from a clock-radio.

And so I was presented with my findings. My left ear showed worse hearing than my right. Something I already knew. The frequency range wasn't too bad, although by my age one should expect some drop-off in higher frequencies.

At a practical level, one can make charts that show the types of impact hearing loss has across the spectrum, and it's something that the Mimi technology aims to rectify, currently for music playback.

It would be interesting for Mimi to produce a customised chart similar to the one I illustrate above, with left and right ear showing the approximate positioning and sensitivity of a person's hearing. I expect it will follow.

In the short term, Mimi provide a kind of hidden equalisation and compression algorithm to drive music listening from the iPhone. I tried it, using their selected track from my iPhone, which was "Don't Know Why" by Norah Jones. The effect of Mimi was quite noticeably different, more immersed in the sound, and with some of the detailing increased. I noticed that the vocals also showed boosted treble and that it created a harshness which wasn't in my original experience of the song. There was a switch to reduce the level of the effect and I found that better vocal rolloff produced a more natural sound.

However, when I played it a little longer I could also hear a kind of 'banding' effect across the whole track, something like a rolling lower frequency pulse that wasn't part of the music. No, it wasn't my heartbeat or anything like that, it made me think that the software was having a slight challenge to keep up with the processing. Either that or there was eventually going to be a 'Pay' button pop-up to make me splash some cash.

The phone I used for the test was an iPhone 5s, and I'm wondering if the processing is actually quite computing intense, maybe with active processing on multiple bands of equalisation and compression. I haven't really tried it long enough to cross check this via the battery use or heat from the phone, but I noticed that the FAQ review mentioned battery life as a challenge, and I think that was with an iPhone 6.

It is well-known that hearing sensitivity drops as one gets older.

Back in analogue days, a couple of tone controls would make the necessary adjustments. Bass and Treble. The circuit would reduce the whole signal by about 20db and then put back some of the frequencies.

The Mimi ideas certainly improve the space inside the listening experience - assuming the processing can properly keep up.

I'm pretty certain the real trajectory of this technology is towards hearing support. Like the old tone circuits, analogue hearing aids also boost and then tweak the frequencies in a fairly basic way. The more expensive ones add filter ranges, more akin to what Mimi appears to be doing.

I'd previously wondered whether an iPhone could be used as an aid to hearing, and this seems to be along that direction, presumably with the phone as a low energy (Bluetooth Smart?) controller and a new type of dedicated processing in ear-mounted hardware. Piezo electric sensor, programmable amplifier, analogue to digital converter, reconfigurable decimation filter, waveform creator? Something like that - similar block schematics to something Line 6 would make to simulate guitar sounds but much, much smaller.

Interestingly, there's a whole ton of legislation related to actual hearing aids, which are classed as medical devices and which means that folk like the Mimi developers are having to tread somewhat carefully. Let's hope their footsteps are heard by the right people.

existential solipsism and the art of motorway driving

I suppose the impending announcement of driverless truck trials will become an easy source of pickings for cartoonists, especially if it gets announced on Wednesday as part of the budget gimmicks.

The design is to provide platoons of trucks spaced close together in a convoy, as if on rails, all operating on the same autonomous wireless system software.

Call me old-fashioned, but the effect of it seems to me something like a railway train?

It's supposed to be based on the AHS (automated highway system) and there's already a Europe-wide system called SARTRE (Safe Road Trains for the Environment) which has been trialled by the likes of Mercedes-Benz, Volvo and Scania. Being called SARTRE, I suppose it will have an existential attitude, perhaps characterised by a sense of disorientation and confusion in the face of an apparently meaningless or absurd world.

I'm also a frequent user of the M25, and I can't help notice there that there's always a few motorists who consider themselves so important that they can cut across 3 or 4 lanes of traffic to exit through a tiny gap at the last second like in that Channel 4 ident.

These planned road trains appear to operate with a maximum 6 metre gap between vehicles, so a block of say 4 or 5 articulated lorries could make the 'important motorist manoeuvre' a thing of the past.

My car already has some of the technology that these new road trains will incorporate: lane control, overtaking warnings, automatic speed management, traffic jam auto edge forward, radar and that thing that tells me when I should stop for a coffee.

Mine has a twister control that allows the distance from the variable speed vehicle ahead to be adjusted. I always keep it on maximum gap. I suppose that for the 'important motorists' it will become a technology arms race to get the latest gizmos and to run with 'minimum gap' selected.

That assumes, of course, that it all works. One of our cars has the rather simpler Stop/Start capability which cuts the engine at traffic lights to reduce emissions.

And guess what? It only works for part of the year. When the temperature drops it switches off, presumably because of the number of energy using systems running in the car.