i-broke-off-a-tiny-piece-of-the-world-with-a-self-flying-drone

I broke off a tiny piece of the world with a self-flying drone

With photogrammetry, hundreds of still photos can be transformed into an incredibly realistic 3D model of a real place on Earth — assuming you capture them all.

This Memorial Day weekend, a self-flying robot cameraman did that entire job for me. I simply designated where to fly and where not to fly, kicked back in a chair, and a Skydio 2 drone nabbed those photos all by itself.

Today, Skydio is launching Skydio 3D Scan, an optional software suite for its self-flying drones that lets them build incredibly detailed models for far more important tasks than my holiday backyard BBQ. We’re talking about scanning bridges that might be in need of structural repair, accident reporting at crash sites, and allowing clients to inspect construction sites from most any angle, anywhere in the world, during and after structures are built.

Those aren’t theoretical, by the way: Skydio says the North Carolina Department of Transportation is using it for bridges; the Boston Police Department for crime and accident scene reconstruction; and, below, you can see an real-life interactive 3D example of a water treatment plant for an upcoming semiconductor facility being built in Chandler, Arizona by Sundt Construction, presumably for Intel. (Skydio says it doesn’t know for sure.)

As you can imagine with that kind of clientele, the feature doesn’t come cheap: $2,999 per year, per drone, for the ability to autonomously grab all those photos given a designated volume that you’d like to capture. That also doesn’t include the drone, a controller, or the software you’ll need to actually stitch the images together: $99+ a month for DroneDeploy, or several thousand dollars per year for Bentley Systems’ ContextCapture, as a couple examples — the embedded Sketchfab models in this post use Bentley’s solution. 3D Scan will come to the company’s $10,999-and-up Skydio X2 drone later this summer as well.

Though it’s aimed at professionals with money to spend, a few short sessions showed me you don’t need to be a pro to use 3D Scan, or necessarily even know how to fly a drone. Assuming you’re following all local drone laws, it’s simply a matter of powering up a standard Skydio 2 drone (with two high-capacity microSD cards) and a Skydio controller, then following a series of prompts on a phone. You fly the drone to the top, bottom, and corners of the area you’d like to capture, pick how much detail you want, and then it does the rest on its own — taking pictures with its 12-megapixel front camera while the drone’s other six eyes and navigation system keep it from crashing.

The larger and more detailed your scan, the longer it’ll take, but you can resume after a battery swap — Skydio recommends you don’t stay out longer than four batteries.

Like I wrote in our Skydio 2 review, you can trust this drone not to crash, and the 3D Scan mode adds a geofencing feature that can help you keep it from flying into unwanted areas, too. Frankly, I didn’t feel a pressing need to hang onto the controller during my backyard patio scan, so I left it on a table while I watched. The only thing that confused me was knowing when the scan was done: it turns out you have to land the drone, then leave it powered on to finish processing. Then, it was a matter of uploading a couple gigabytes of photos to DroneDeploy or Bentley and waiting for them to process.

There’s an AR mode where you can keep track of a virtual Skydio drone as it makes its rounds.

As you’ll no doubt see in the 3D models (or failing that, YouTube), they’re not quite seamless yet — not something you’d want to explore in virtual reality, for instance. (I tried.) Even though I can make out the exact texture of the cement slab and tiles in my backyard, and the metal carnage in this Swiss cheese of a busted helicopter, here are loads of holes and smudges that photogrammetry is just failing to provide.

Skydio CEO and co-founder Adam Bry admits that 3D isn’t everything, and that some clients will simply use 3D as a guide to all of the individual high-res photos that Skydio also provides. “If you set the closest resolution, you’re talking about something like .5mm per pixel … it’s enough to see fine cracks in concrete, it’s enough to see rust on a bolt, it’s enough to see details of a skid mark on the ground.” And while he says the system works in indoor environments, it’s currently optimized for flying around an object you’d like to capture instead of capturing the world around the drone, like you might for an indoor tour. (Skydio is “fairly active” in pursuing inside-out capture as well.)

Long term, Bry thinks the automated aerial scanning might come in handy for digitizing the world for other reasons, like augmented and virtual reality, but for now it seemed like simple, detailed 3D structure modeling was a problem Skydio could solve. “There are countless examples of the world’s best drone pilots keeping this mental model of the path they’ve flown,” says Bry. Now, scanning may not need to be about flying, or even programming a path on a map. It’s just another app on your phone.

Skydio’s holding a special live webinar at the US Space and Rocket Center today at 9AM PT / 12PM ET to show a bit more of what 3D Scan can do. They’ll be scanning some exhibits inside the center, Bry tells me.

some-apple-music-hi-res-lossless-content-is-already-showing-up-on-the-service

Some Apple Music Hi-Res Lossless content is already showing up on the service

(Image credit: 0gniRincha, Twitter)

With Apple Music CD-quality, Lossless and Hi-Res Lossless streaming announced at no extra charge to Apple Music users (and at an unspecified date in June) certain users have reported actual lossless and hi-res icons appearing on the streaming service ahead of its official the launch.

With Apple’s annual (coronavirus permitting) Worldwide Developers Conference (WWDC) kicking off in just five days on 7th June, Apple may well be readying hi-res content for the big reveal and leaving a few early treats for its loyal users. 

As first reported by Apple Insider, keyed up users hoping to spot a few early-access Easter eggs have allegedly discovered albums showing labels for Lossless or Dolby Atmos, and others are apparently being prompted to re-download albums for new formats.

What Hi-Fi? tried to follow suit but is unable to replicate any of these experiences. A user in Japan was apparently able to see a video EP with the labels for Dolby Atmos, Hi-Res Lossless, and Apple Digital Master (main image, thank you @0gniRincha) while another subscriber in the Netherlands was prompted to download an album to experience it with Dolby Atmos with Lossless audio, although they claim that when they tried to do this, it didn’t actually download.

So what’s up with Apple Music? For a moment I got a popup saying I need to redownload an album to get Dolby Atmos. After doing so the music type went to HLS media. Now it’s back at streaming AACJune 1, 2021

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Apple Music空間オーディオやロスレス、デジタルマスターはまだMVだけの模様 pic.twitter.com/sftu8kIUuMMay 31, 2021

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The new features will require iOS 14.6 or later to work. Apple will actually offer three tiers of higher resolution audio: CD quality (16-bit/44.1kHz), Apple Music Lossless (24-bit/48kHz), and Hi-Res Lossless (up to 24-bit/192kHz). You will be able to choose your quality through the Settings > Music > Audio Quality section of Apple Music.

At launch, all of Apple Music’s 75-million-strong music catalogue will be available in CD quality or Apple Music Lossless. Also on the day Apple officially releases the upgrade, 20 million tracks will be accessible in the highest quality Hi-Res Lossless format, with the whole catalogue following “by the end of 2021”.

With thousands of tracks arriving in Dolby Atmos too, could a few have slipped through the net and been leaked to some users early doors?

Apple Insider has also reported a fresh new discovery: all music videos in Apple Music now signify that they are playing with Apple’s proprietary Spatial Audio enabled within the Apple Music app – and the label for Dolby Atmos or Spatial Audio doesn’t have to appear for it to work. To try it out, when wearing your AirPods Max or AirPods Pro, listen to a music video and check the Spatial Audio setting in Control Center. If Spatial Audio is playing, the icon will be animating.

To see this icon, swipe down on the top right corner to reach Control Center, and long-press on the volume slider. The icon should appear in the bottom right of the display. 

Apple has told What Hi-Fi? that post-launch, Apple Music Dolby Atmos will also work with third-party headphones – as long as you manually enable it. To do this, go into Settings on your iPhone or iPad and then to Music. A new Dolby Atmos option will be available. This is set to Automatic by default (which means Dolby Atmos tracks will play correctly when you’re listening via any W1- or H1-enabled pair of Apple or Beats headphones such as the AirPods Max, AirPods Pro or standard AirPods), but not when you’re using third-party headphones. However, if you switch this option to Always On, even these non-Apple headphones will play back the Dolby Atmos tracks correctly.

iOS 14.6 adds support for Apple Digital Master 24-bit files in Apple Music. This means that the majority of Gaga’s catalogue is now available in that format & labelled accordingly. The Fame Monster Video EP supports also Hi-Res Lossless & Dolby Atmos which enables Spatial Audio. pic.twitter.com/NJYQJr1jOmMay 25, 2021

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Still no official date on the Apple Music Lossless launch, but Apple Music subscribers should mark the 7th-11th June in their diaries – and keep checking for those icons in albums from big-hitters such as Lady Gaga, Lil Nas X or Drake.

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