resolution

Onkyo to offer Dolby TrueHD 5.1 channel music downloads

At the end of May, Onkyo will start selling Dolby TrueHD 5.1-channel music downloads, first in Japan, and by the fall of this year worldwide. That's either a brave or foolhardy move.

Multichannel music formats -- starting with quadraphonic LPs and tapes in the early 1970s, DTS encoded surround CDs in the 1990s, and DVD Audio and SACD in the early 2000s -- have all suffered from a lack of consumer demand. Very, very few surround releases were initially recorded in surround; most rock and jazz titles are remixed from older stereo recordings. The Blu-ray format has now … Read more

Stunning high-resolution photo shows Earth's many hues

Most people are familiar with NASA's quintessential photograph of Earth -- semi-transparent white clouds sweeping over beige and green swaths of land surrounded by dark blue water.

While that picture's mesmerizing, a photo has emerged showing the planet in even more color and detail, and according to some, it could be among the highest-resolution single pictures ever taken of Earth. It was shot by Russian scientists aboard their weather satellite, the Elektro-L (to download the photo and see a zoomable image, click here). … Read more

Convert your images with AVD Batch Converter

Certain image formats are better suited to particular tasks than others, so if you do a lot of work with digital images it makes sense to have a program that can easily convert between a variety of formats. AVD Batch Converter is definitely not the fanciest file converter we've encountered, but if you need a no-frills way to convert batches of images from one format to another, it can get the job done.

The program's interface is intuitive, if not particularly attractive. Three panes let users navigate to specific directories, view a selected directory's contents, and preview … Read more

TV and movies on new iPad look better, but not by much

When I directly compared the screens of old iPad 2 and the new iPad, I immediately noticed the improvement in resolution in text and some graphics, like the Apps icons. Being a TV reviewer, however, I was curious to see if there was any major improvement when watching movies and TV shows.

I spent a few hours this weekend looking at common video sources side-by-side, one on an old iPad 2 (1,024x768-pixel resolution) and one on the new iPad (2,048x1,536 pixels). Despite the massive boost in resolution, and what Apple claims is a 44 percent increase in … Read more

Why the new iPad's resolution is irrelevant to HDTVs

With all the incessant hoopla about the new iPad, the one comparison that keeps popping up is that its 2,048x1,536-pixel resolution is "greater than an HDTV!" or "1 million more pixels than your TV!"

Not only is this irrelevant and a senseless comparison, but it has no bearing on the future of HDTVs, as some have implied.

Here's why.… Read more

Here's why apps won't be ready for the new iPad

Last week Apple showed off the new iPad's higher-resolution display and showcased a series of new apps that take advantage of those added pixels. If you have an iPad, I'm sure you're relishing the chance to see the new display in action, but before you get too excited, don't expect to get the full experience on day one.

I hate to be the bearer of bad news, but don't be surprised if some of your favorite apps aren't ready to hit the ground running, even if you are.

Crystal clear consequences So why do … Read more

So you think you're a home game console now, do you iPad?

If Apple wants to go after the Xbox 360 and PlayStation 3 then Apple should make a home console. The iPad is not a home console. It's a portable tablet that can play casual games. The same way an automobile is not a cup holder. It can just hold your coffee while it gets you from point A to B.

It would be just as silly if Microsoft or Sony came out and said their controllers have 15 times the button-pressing capability than the new iPad. They wouldn't be wrong, but it would cause every eye in the house to roll. So here's why Apple's jab at the Xbox 360 and PlayStation 3 was misleading and cheap.… Read more

Create Julia Set fractals with JuliaShapes

Julia Sets are specific kinds of fractals that are of interest in some pretty complex mathematics. Named for their creator, French mathematician Gaston Julia, JuliaShapes is a free tool that generates Julia Sets using quaternion numbers, which can be represented as pairs of complex numbers and so are ideal for fractals. The math is complex but the tool is simple, with sliders for adjusting the fractal's parameters and high-quality rendering via anti-aliasing.

You can open multiple instances of JuliaShapes' simple, compact interface. Aside from sliders tweaking the View, Render, Julia settings, Light settings, and Generalised settings, the only buttons … Read more

The 404 1,005: Where the iPad HD is Hardly Different (podcast)

Extra-short show today to make room for this morning's Apple iPad HD coverage, but we'll quickly speculate about the deal-making features that would push us to run out and buy an iPad HD--we'll also talk about the possibility of a haptic feedback display, a new AppleCare+ program, and what sites you should use to sell your old tablet if you upgrade.… Read more

Can an MP3 sound better than a Blu-ray?

High-resolution formats like Blu-ray, DVD-Audio, SACD, and LP are all capable of delivering superb sound quality, but having music in those formats doesn't automatically guarantee great sound. The recording itself would first have to sound great, or to put it another way, a great sounding MP3 would sound better than a heavily compressed and studio processed 192-kHz/24-bit Master Audio Blu-ray.

Worrying about what sounds better--FLAC, WAV, or AIFF files--is a total waste of time if you're listening to an Adele or Black Keys album: the music's processing levels are so extreme, there's nothing for … Read more