Tip o’ the Week 398 – New Dimensions in Sound

Posted on October 20, 2017 by ewand

Sound technology has been advancing ever since the phonograph wax cylinder, through higher quality recordings and transmission formats, stereo, quadrophonic, multichannel home cinema and so on.

High fidelity sound is delivered via a combination of lots of overlapping but distinct technology; from the quality of the original recording equipment, technique and media the sound was recorded onto (if analogue), or the bit-depth & format used to encode all the way from the point of recording to the moment of consumption (if digital), and all of the equipment used to turn the sound recording back into vibrating air. Many words are written on the merits of this bit of kit, or that piece of cable – YMMV.

Lucasfilm realised in the late 1970s that despite going to great lengths at the point of production to assure the quality of video and audio, there was little way of guaranteeing that cinemas showing films had anything like the quality of AV reproduction kit required to render the experience for the movie-goers. As a result, they came up with THX – a certification system rather than a specific recording technology, though many viewers confused the two; maybe because of the various THX idents that preceded popular movies, starting in 1983 with Return of the Jedi, through other mainstream hits like Terminator 2 and even a spoof-turned-ident Simpsons special.

Other technology suppliers started following the same approach in trailing their formats, and as DVDs took off, recording compression and representation systems like Dolby Digital and DTS (and their many subsequent variants and successor technologies) showed up on players, on discs, and in theatres.

You may have seen some of their idents before… like here and here. And if you’ve bought an Audio-Visual Amplifier in the last 20 years, it probably came festooned in stickers proclaiming all the certifications it had.

Dolby Atmos is one more recent development of surround sound encoding & reproduction technology; originally designed for movie theatres with hundreds of speakers and able to precisely position a pin-drop anywhere in the auditorium. There are a growing number of Atmos-equipped cinemas around, but the curious would still need to go out of their way to find both a suitable location and the right content to watch and listen to.

Predictably, there’s an Atmos consumer version aimed at enticing AV users to upgrade their existing 7.1 system to a fancier setup. And there’s also a version of Dolby Atmos for the PC, too – maybe most useful for headphone users, and delivered to Windows 10 users via the Dolby Access store app. It costs cash money to use, but you can trial for 30 days free of charge and make up your mind if it’s worth the $15 to keep it going.

It won’t turn your 2-channel headphones into a 64-channel Atmos theatre, but it does provide some interesting software-driven tuning, akin to several other 3D software sound systems. Interestingly, it also runs on Xbox One, showcasing the benefits of the Win10 PC and Xbox sharing the same base OS. There’s the free Windows Sonic that might give you a similar experience.

A note from intrepid reader, Peter Martin – if you have some Carlos Fandango Bose wireless noise cancelling jobs (as worn by frequent flyers as if to say, “I travel so much, I carry these $400 cans that take up half my hand luggage, because they’re Just Better”), then it’s worth heading to Bose’s firmware update page and installing the software to check and update your chunky funks.

Pete also says:

For some cool sounding audio effects, check out Windows Sonic and Dolby Atmos settings.

Also, if you’re looking for a more robust sound, enable the enhancements on the Headphones device.

Note that the enhancements can be a bit over the top, especially on bass, so play around to your liking…

When connected, if you hear audio dropouts during audio calls, try disabling Signal Enhancement on the Hands-Free device setting…

Tip o’ the Week 395 – Resizing pictures in Windows 10

Posted on September 15, 2017 by ewand

As smartphone cameras get better, it’s very common to have snaps with dimensions of 4,000 x 3,000 pixels, sized in multi-megabytes – great for capturing a bit more detail, but potentially tricky when handling the photos given the file size as well as their width & height.

This is especially the case if you’re sharing pictures with others – though it does rather depend on how. Email programs usually have ways to reduce the size of images, varying in method but increasingly very integrated to the sending process, and often with little real control of what’s going on. Outlook, for example, lets you drag images around by resizing handles, or if you right-click on an inserted image, choose Size and Position then look on the Size tab, you can alter the scale of an image for display purposes.

This doesn’t make the image smaller in the number of bytes it takes up, however – so you might think you’ve made your massive picture a nice thumbnail, only to find it’s still actually 7MB in size. In order to make the image data size get smaller in Outlook, select it by left-clicking, then from the Picture Tools | Format menu, you’ll find a Compress Pictures com mand that lets you make this image (or every other one in the mail), smaller.

If you look on the File menu before doing so, you’ll see the size of the email before, and presuming you’ve hit “Save” after the compression, you can compare the size afterwards too.

The same thing happens in PowerPoints as well – tiny little watermarks on the background of a presentation making the file too big to ever email to anyone. A similar process can radically reduce the size of your presentations by compressing the size of images before saving.

Files

If you have pictures in the file system, there used to be a variety of ways for Windows to offer resize capabilities – one of which was to install the now-defunct Windows Live Photo Gallery, which had a nice wizard to resize images to standard sizes. Now, in Windows 10, there’s no easy, out-of-the-box way of doing it, as the Photos app doesn’t offer resizing and nothing shows up in the desktop / file system mode.

If you have a habit of uploading photos you’ve taken to online forums and the like, some of them will deal with resizing for you (as does Facebook, Yammer etc too), but if they don’t, you may find you’ll need to radically reduce the dimensions of your pic before you can share it.

One of the joys of writing Tip o’ the Week is that readers often send their tips just after the mail has gone out – welcome but not always practical to share on, as the same topic might not return for a while. In this example, there will no doubt be a plethora of fave image resizing methods, but a simple one for mortals with less time on their hands is to just go to @Brice Lambson’s site on http://www.bricelam.net/ImageResizer/ and install the quick & simple resizer tool.

Afterwards, right-click within Windows Explorer on your chosen image – or select several and do the same – and resize the image(s) to a given set of dimensions in a trice. Then you’re ready to upload the resulting new pics to your online forum of choice.

Remember another handy tip (as covered in ToW #373 and others) is the Copy as path command – hold SHIFT as you right-click on any file and you’ll see it appear in the drop down list. What this does is copy the exact file and pathname to the thing you’ve just right-clicked on (remember, kids, it works with any file, so uploading docs to a SharePoint is just as relevant) into the clipboard, so you can instantly point the File -> Open dialog on your other app or browser straight to the thing you want.

Tip o’ the Week 394 – Change your lock screen

Posted on September 12, 2017 by ewand

As any fule kno, good corporate types should lock their PC every time they walk away from the machine. The Dynamic Lock function in Windows might help, and further tips were covered back in ToW #372. The simplest way to lock your machine when you get up and go to walk away, is to hit WindowsKey+L.

When you return to the computer, assuming you’re not showing a screen saver or the screen hasn’t gone completely blank due to power settings switching it off, you’ll likely have some kind of lock screen be shown – customisable under Settings -> Personalisation -> Lock Screen (or just press Start and type lock to jump straight into the lock screen settings).

The default Windows spotlight option shows some lovely images downloaded from Bing – if you like seeing those, then by all means leave it as it is, and if you want to grab those image files for other purposes (setting your desktop image, maybe), there’s a handy tutorial here.

If you have your own photo or folder(s) of photos you’d like to show instead, then just choose the appropriate option under the background drop-down, and point Windows to where your files are.

You need to ensure your photos fit on the screen properly, though, as they might be a different size or orientation, and you won’t want to cut key features of your picture out. Fortunately, there’s a quick & simple way of doing so using the Photos app.

Start by copying all the images you’d like to use for your lockscreen into a new folder (to make it easy to point the at them if you’d like a slideshow), and then open each one in Photos.

Click or tap on Edit, and select the Crop and rotate option. You can then quickly adjust the aspect ratio of your photo, and if the source image is portrait format (whereas your screen will almost certainly be 16:9 widescreen landscape), you could first set the image to be Widescreen then tweak “Make landscape”.

These options will show you a window over your photo, you then drag the picture around underneath so as to line up the features you want and when you’re happy with the layout, hit Done. After you’ve played around with other filters or enhancements, just save the picture, and you’ll be dropped back into the main Photo app to view your results.

If you’re just doing one picture, click or tap Set as >, and you can quickly make the pic your lock screen or background.