投稿時間:2023-09-15 03:06:02 RSSフィード2023-09-15 03:00分まとめ(6件)

カテゴリー	サイト名	記事タイトル	リンクURL	頻出ワード・要約等	登録日
AWS	AWS	Transforming Agriculture with Monarch Tractor's Wingspan AI | AWS All Things Automotive Series	https://www.youtube.com/watch?v=Czim6LIGtgI	Discover the transformative impact of Monarch Tractor on global greenhouse gas emissions in this episode of All Things Automotive With farming contributing of all emissions Monarch is leading a quiet revolution in the fields Special guest Chris Whitney Chief Digital Officer offers a technical deep dive into their groundbreaking approach combining electric autonomous vehicles with cutting edge connected mobility software through the innovative big loop concept Monarch s Wingspan AI hosted on AWS offers valuable insights from real world operations to farmers Get a look at the Monarch OS integrated into the tractor s roof ensuring safe and strategic autonomous mobility Catch this quick episode hosted by AWS Stefano Marzani Worldwide Technical Lead for SDV and witness the big bang of automotive disruption MonarchTractor FarmingRevolution AutonomousTractor electrictractor connectedMobility AutomotiveInnovation SustainableAgriculture WingSpan AI mobilityFleet AWS CloudSolutions DigitalTransformation	2023-09-14 17:48:35
海外TECH	Ars Technica	Autopsy of a star reveals what was eviscerated by a monster black hole	https://arstechnica.com/?p=1967385	From the interior of a star to the accretion disk of a black hole	2023-09-14 17:01:43
海外TECH	Engadget	The best DACs for Apple Music Lossless in 2023	https://www.engadget.com/the-best-dac-for-lossless-high-resolution-music-iphone-android-160056147.html?src=rss	The Apple effect can be as helpful as it is infuriating A good technology can exist for years and many won t care until it gets the Cupertino seal of approval To that end a lot of people started to care about high resolution digital audio when the company launched its upgraded music service to the masses But as many were quick to point out some of Apple s own products don t necessarily support the higher sample rate and bit depths on offer No worries there s a dongle for that And there are options for Android and the desktop too nbsp As hinted it s not just Apple in on the hi resolution game Qobuz Tidal and Deezer have been doing it for a while and Spotify is planning on introducing its own version soon The products in this guide will play nice with any of these services aside from Tidal s MQA which is a little more specific and we have options for that as well Why do I need new hardware to listen to music AppleThe short answer is you don t You can play hi res audio files on most phones and PCs you just might not be getting the full experience If your device s audio interface tops out at or kHz which is fairly common and covers the vast majority of music online then that s the experience you ll get If you want to enjoy better sounding music at a higher sample rate and bit depth aka resolution you ll need an interface that supports it and wired headphones It s worth pointing out that lossless and hi res are related terms but not the same thing and will vary from service to service Apple uses ALAC encoding which is compressed but without loss to the quality unlike the ubiquitous aac or mp file formats CDs were generally mastered to at least bit kHz which is the benchmark that Apple is using for its definition of lossless In audio circles a general consensus is that hi res is anything with a sample rate above kHz Increasingly though the term is being used for anything kHz and above This of course isn t only about Apple s new streaming formats External DACs and audio interfaces are a great way to get the best sound and upgrade your listening experience generally Especially if you want to get into the world of more exotic read pricey headphones as they often even require a DAC to provide enough clean digital signal to drive them For audiophile headphones a phone or laptop s internal sound chipset often doesn t have the oomph needed to deliver a hi fi experience Okay but can t I just use the headphone adapter for my phone No Well yes but see above A Lightning or USB C to mm headphone adapter often is an audio interface and most of the ones you re buying for or that come free in the box do not support hi res audio beyond kHz bit Android is a little more complicated as some adapters are passive and really just connect you to the phone s internal DAC like old school headphones Others active ones have a DAC built in and good luck finding out what your specific phone and the in box adapter delivers Hint connect it to a PC and see if it comes up as an audio interface You might find some details there if it does What is a DAC though Billy Steele EngadgetA digital to analog converter takes the digital D music from your phone or computer and converts C it into analog A sound you can hear All phones and PCs have them but since handsets moved to USB C Lightning or Bluetooth for music the task of converting that signal was generally outsourced to either your adapter or your wireless headphones DACs can be used with phones laptops and desktops but tend to be much simpler than a regular external audio interface One basic distinction is that DACs are usually for listening only whereas an audio interface might have ports to plug in microphones and instruments but an external audio interface is also technically a DAC The benefit of DACs is that they tend to be lightweight making them more suitable for mobile use although it still gets a little tricky with the iPhone as you still might need to add another dongle to make it play nice with Lightning Also not all DACs support all the higher audio resolutions Most standalone DACs require external power or an onboard battery though some can use the power from whatever you plug them into ーin which case expect a hit to your battery life Below are some of our picks for a variety of scenarios Best for Android users looking for a simple affordable option Ugreen USB C to mm headphone adapterOkay you were expecting serious outboard gear and we start by showing you a basic adapter Yes because this one supports kHz audio bit and is about as straightforward as you can get Simply plug into your USB C device or USB A with an adapter connect your headphones and away you go There are no buttons no controls nothing to charge While this dongle doesn t support kHz the move up to kHz is still firmly in the hi res audio category and its super low profile and ease of use make it a great option for those that want an audio quality bump without going full bore external DAC Of course this budget DAC is best suited to devices with a USB C port such as the iPad Pro MacBook or most Android phones As noted earlier it s possible your Android already supports hi res audio and a simple passive dongle is all you need but given the price and quality of this one at least you know what you re getting as the specific details of audio support for every Android phone out there are often hard to find The downside is that this adapter won t do much to help drive higher impedance headphones so it s less suited to audiophiles who really need more power to drive their favorite cans I used this on both an Android phone and an iMac and it worked just fine although with Apple computers you need to head to the Audio MIDI settings first to make sure you re getting the highest quality available Best for streamlined desktop use with high end headphones Apogee GrooveApogee gear is usually found in the studio The Groove takes the company s decades of audio experience and squeezes it into a highly portable DAC that s perfect for those who want a lightweight option for their desktop or laptop We re stepping up the sound quality here with support for kHz bit which will cover everything from Apple s new lossless service Connecting your iPhone to the Groove is a little more complicated It works just fine but you ll need something like the Apple Camera kit as it needs external power In short it gets a bit dongly but it works if you want something for your desktop first that can do double duty on iPhone Android support is a little hit and miss though you would still need a way to feed it power while in use Once you re set up just plug in your headphones and you re away The rubberized base of the Groove stops it from shifting around on your desk and the large buttons make controlling volume a breeze with LED feedback to show you volume levels Audio sounds dynamic with a generous bump in gain over whatever you re plugging it into likely offers The frequency response is flat meaning you get out exactly what you put in audio wise making this a great choice if the connectivity and price range matches your specific use case Best for power and portability AudioQuest Dragonfly CobaltBar the Ugreen dongle the Dragonfly is easily the smallest most portable device on this list And better yet it almost certainly works with your phone PC or laptop and won t require a dedicated power supply despite the lack of a built in battery You ll still need an adapter for phones USB A to Lightning or USB A to USB C for Android but otherwise it s plug and play There s no volume control just one mm headphone jack and a color changing LED to tell you what sample rate the track you re listening to is using At it s a pricey proposition but the cable spaghetti of some devices or the sheer heft of others means the Dragonfly s small footprint and rugged simplicity make it refreshingly discreet and simple AudioQuest also offers two cheaper models starting at that are likely more than good enough for most people Don t let the Dragonfly s size and lack of controls fool you the Cobalt throws out some serious high quality sound According to AudioQuest the maximum resolution has been intentionally limited to kHz for the optimal experience and that s plenty enough to cover what you ll get from most music services The output from the in built headphone amp will make your phone s audio feel positively wimpy by comparison and the powerful internal sound processing chip delivers crystal clear audio with a wide soundstage across a range of genres and formats One extra trick up the Dragonfly s sleeve is native support for Master Quality Authenticated MQA files This is the preferred format of Tidal so if that s your service of choice the Dragonfly is ideal Best for super high resolution Fiio QFiio has been a popular name in the portable DAC scene for a while now and for good reason The products deliver solid audio quality support all manner of resolutions and are compatible with a wide range of devices The Q is bigger than the previous options on this list it s about cm shorter than an iPhone but remains fully portable There are even some goofy silicone bands so you can strap it to your phone rather than have a flappy heavy appendage For users on the go the Q s built in battery good for about eight hours means you won t need to drain the power on whatever you re plugging it into It also means mobile users won t need a dreaded second cable Throw in support for three different size headphone jacks sadly inch isn t one of them and you have a DAC that will serve you souped up sounds wherever you are and whatever you re listening to There isn t a display which you might expect for something this size but there is an LED that changes color when you re listening to something higher than kHz so you can tell which tracks in your streaming service s library really are higher res The dedicated volume control doubles as a power knob and there s also a bass boost switch just like the good old days On top of the USB C input there s also the option for analog audio sources via the mm port Even if you re not listening to high sample rate music the Q sounds fantastic The difference in volume punch and dynamic range that comes through in songs that sounded flat and dense when listening directly through a phone or laptop was remarkable Throw in support for all the hertz and bit depths that you ll likely ever need and what s not to like Especially as the Q comes at a cheaper price point than some of the less capable options in this guide the slight extra heft will be a key factor here Best for high resolution fans of Tidal iFi Hip DacIf this were a spec race it d be a photo finish between Fiio s Q and iFi s Hip Dac Like the Q the Hip Dac blows right past support for kHz right up to kHz It also offers balanced output via mm headphones which is rare to find on consumer headphones but some higher end cans offer it for those who want to eliminate any potential interference There s also an internal battery bass boost and a very similar form factor to the Q For anyone interested in either of these two it might come down to a single feature Be that the highest sample rate it can support Q wins or its ability to decode Tidal s MQA files in which case you want the Hip Dac The sound out of this thing takes on the Q blow for blow and even the same knurled volume control is here But let s be honest the fact it looks like and was named after a hip flask is clearly also a major selling point Though it s worth mentioning the Hip Dac takes a female USB cable supplied in the box But this does mean you ll need to use the Camera Kit to get into the iPhone whereas the Q works with one single provided cable Regardless it s another robust option that will more than cover most bases for most people As with the Q the internal battery means you won t need to feed it power while in use estimated eight hours and connecting it to your phone or computer is the same as long as you can pipe a USB cable into it you re good to go Best for desktop warriors Focusrite Scarlett iOnly looking for a desktop DAC Then a good old fashioned audio interface might be the best choice for you Focusrite s Scarlett series has near legendary status at this point and an eye wateringly high review ratio on Amazon for a good reason It does what it does very very well Most current laptops and desktops can probably handle at least kHz audio but with the Scarlett you can be sure you are getting the full kHz when available and the dedicated audio processors and headphone amps will do a much better job of it The main benefit here is the general upgrade you will be giving to your PC Not only will your listening experience be enhanced but you ll be able to plug in microphones and instruments if streaming or recording are your thing all in one device and all for about the same price as some of the more mobile oriented devices on this list This article originally appeared on Engadget at	2023-09-14 17:45:09
海外TECH	Engadget	Sony’s Gran Turismo AI racer can drift now, making it even more unbeatable	https://www.engadget.com/sonys-gran-turismo-ai-racer-can-drift-now-making-it-even-more-unbeatable-171636815.html?src=rss	The world s leading Gran Turismo players have had their shot at beating Sony s AI racer GT Sophy and they lost spectacularly Now the bot has added drifting to its move set to rub salt on the wounds as seen in a video from the Gran Turismo World Series event The video clearly shows an AI controlled vehicle drifting around the track like an absolute maniac Meanwhile most people can t pull off successful drifts in Mario Kart let alone in realistic racers like Gran Turismo GT Sophy you can guess what the GT stands for is the result of more than six years of development between Sony AI and Sony Interactive Entertainment and utilizes deep reinforcement learning methods These methods have trained the artificial intelligence algorithm to control the digital race car within the game s structure and limitations When first unveiled Sophy was a master at various racing tactics like slipstreaming passing and blocking though drifting is a new move for the bot Sony says that GT Sophy is here to stay stating that the company s continuing its efforts to make the AI a permanent part of the game To that end Sony let regular Gran Turismo players face off against GT Sophy last year for a limited time so maybe that promotion will return For the uninitiated drifting is a popular move in both real world racing and its digital equivalent First introduced in the s by Japanese racer Keiichi Tsuchiya drifting involves steering a vehicle so it makes a controlled skid sideways through a turn This allows you to quickly take steep turns shaving off crucial seconds from a run Now that algorithms can perform this feat don t count on outracing any evil robots when the AI apocalypse starts You should probably just hide instead or ply Alexa with compliments to get on her good side This article originally appeared on Engadget at	2023-09-14 17:16:36
科学	NYT > Science	What the NASA UFO Report Does and Doesn’t Say about UAPs	https://www.nytimes.com/2023/09/14/science/nasa-ufo-uap-report.html	The role was created in response to the recommendations of a report that found the agency could do more to collect and interpret data on unidentified anomalous phenomena	2023-09-14 17:56:34
金融	ニュース - 保険市場TIMES	プルデンシャル生命、早稲田大学より感謝状を受領	https://www.hokende.com/news/blog/entry/2023/09/15/030000	プルデンシャル生命,トレーニング,プルデンシャル生命保険株式会社	2023-09-15 03:00:00