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OnePlus Buds Z, the rumoured TWS earbuds from the Chinese smartphone maker, are set to launch in India on October 14. Ahead of the launch, renders and specifications of the OnePlus Buds Z have been leaked. While the renders offer a look at the earbuds’ design and charging case, the specifications tip details on the inbuilt drivers, audio technology support, and battery life. Alongside, the OnePlus Bullets Wireless Z neckband earphones are tipped to get a special Bass Edition – expected to launch with the OnePlus Buds Z on the same day.

OnePlus Buds Z renders

Renders of the OnePlus Buds Z were extracted from an anonymously shared APK by Oxygen Updater. Unlike the regular OnePlus Buds, the OnePlus Buds Z appear to sport silicone ear tips that are expected to lend a better fit and more effective noise cancellation.

The pill-shaped charging case also appear to be slightly slimmer when compared to the OnePlus Buds. This means that the OnePlus Buds Z earbuds will lay sideways inside the case, as compared to the vertical earbuds placement seen on the OnePlus Buds charging case.

The renders also suggest that the OnePlus Buds Z may come in three colour options – black, grey, and white.

OnePlus Buds Z specifications (expected)

91Mobiles, in partnership with tipster Ishan Agarwal, has shared several specifications of the upcoming OnePlus Buds Z. For starters, the earbuds are expected to be rated IP55 for water and dust resistance. OnePlus Buds Z may feature 10mm drivers with support for Dirac Audio Tuner and Dolby Atmos.

On a single charge, the earbuds are expected to last five hours, with an additional 15 hours with the charging case. The case may also support fast charging, adding three hours of playtime on a 10-minute charge. The earbuds are expected to support Bluetooth 5.0 and sport dual microphones. Each earbud is expected to weigh 4.35 grams.

OnePlus Bullets Wireless Z Bass Edition specifications (expected)

Agarwal also tipped the specifications of OnePlus Bullets Wireless Z Bass Edition neckband earphones alongside the OnePlus Buds Z. Equipped with 9.2mm drivers, the special edition earphones are expected to deliver an improved bass performance when compared to the regular OnePlus Bullets Wireless Z.

The earphones are expected to have a battery life of 17 hours. The Bass Edition may come with fast charging support, adding 10 hours of playtime with a 10-minute charge. The earphones are expected to support Bluetooth 5.0.

OnePlus Bullets Wireless Z Bass Edition are tipped by Agarwal to launch along with the OnePlus Buds Z on October 14. The OnePlus Buds Z were earlier confirmed by the company to launch in India alongside the OnePlus 8T at an online event on the date that can be live streamed on the OnePlus India website starting 7:30pm IST.


OnePlus 8T leaked specs look great but where is the cheaper Nord? We discussed this on Orbital, our weekly technology podcast, which you can subscribe to via Apple Podcasts, Google Podcasts, or RSS, download the episode, or just hit the play button below.

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Is OnePlus 8T the Best ‘Value Flagship’ of 2020?

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On this episode we talk about OnePlus 8T price in India and how it affects the value flagship market as deputy reviews editor Roydon Cerejo joins host Pranay Parab. We begin this episode by talking about OnePlus 8T leaks and our own guesses about this phone, and how right or wrong we were. We did get some things correct and we were slightly off the mark with others. Next we talk about OnePlus 8T new features and how the competition is affected by this launch. We also compare the OnePlus 8T vs OnePlus 8 and whether the improvements are big enough to warrant a new phone launch. This is where we talk about the OnePlus 8 Pro and how its presence in the market affects the features we get on the OnePlus 8T. This is also that part of the podcast where we discuss the lack of an IP rating or wireless charging on the OnePlus 8T.

Then we talk about OnePlus 8T camera performance and how the smartphone holds up under various conditions and during our tests for both photos and videos. This has not been OnePlus’ forte in recent times, but has the narrative changed this time around? Listen to the episode to find out. Then we talk about the OnePlus 8T’s 65W charger and battery life, and tell you some interesting features of this charger that make it very useful in times when certain companies have removed charging adapters from smartphone boxes. Next up, we discuss the software on the OnePlus 8T and whether that will be a big change from what we have seen previously. Finally we tell you whether the OnePlus 8T performs as expected and whether you should buy this smartphone. 

That’s all for this week’s episode of Orbital, which you can subscribe to via Apple Podcasts, Google Podcasts, or RSS, download the episode, or just hit the play button below.

For the latest tech news and reviews, follow Gadgets 360 on Twitter, Facebook, and Google News. For the latest videos on gadgets and tech, subscribe to our YouTube channel.

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OnePlus Nord Gray Ash Colour Variant Launched: Price in India, Specifications

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New technology from Stanford scientists finds long-hidden quakes, and possible clues about how earthquakes evolve

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Measures of Earth’s vibrations zigged and zagged across Mostafa Mousavi’s screen one morning in Memphis, Tenn. As part of his PhD studies in geophysics, he sat scanning earthquake signals recorded the night before, verifying that decades-old algorithms had detected true earthquakes rather than tremors generated by ordinary things like crashing waves, passing trucks or stomping football fans.

“I did all this tedious work for six months, looking at continuous data,” Mousavi, now a research scientist at Stanford’s School of Earth, Energy & Environmental Sciences (Stanford Earth), recalled recently. “That was the point I thought, ‘There has to be a much better way to do this stuff.’”

This was in 2013. Handheld smartphones were already loaded with algorithms that could break down speech into sound waves and come up with the most likely words in those patterns. Using artificial intelligence, they could even learn from past recordings to become more accurate over time.

New technology from Stanford scientists finds long hidden quakes and possible

The Loma Prieta earthquake, which severely shook the San Francisco and Monterey Bay regions in October 1989, occurred mostly on a previously unknown fault. Image credit: J.K. Nakata, USGS

Seismic waves and sound waves aren’t so different. One moves through rock and fluid, the other through air. Yet while machine learning had transformed the way personal computers process and interact with voice and sound, the algorithms used to detect earthquakes in streams of seismic data have hardly changed since the 1980s.

That has left a lot of earthquakes undetected.

Big quakes are hard to miss, but they’re rare. Meanwhile, imperceptibly small quakes happen all the time. Occurring on the same faults as bigger earthquakes – and involving the same physics and the same mechanisms – these “microquakes” represent a cache of untapped information about how earthquakes evolve – but only if scientists can find them.

In a recent paper published in Nature Communications, Mousavi and co-authors describe a new method for using artificial intelligence to bring into focus millions of these subtle shifts of the Earth. “By improving our ability to detect and locate these very small earthquakes, we can get a clearer view of how earthquakes interact or spread out along the fault, how they get started, even how they stop,” said Stanford geophysicist Gregory Beroza, one of the paper’s authors.

Focusing on what matters

Mousavi began working on technology to automate earthquake detection soon after his stint examining daily seismograms in Memphis, but his models struggled to tune out the noise inherent to seismic data. A few years later, after joining Beroza’s lab at Stanford in 2017, he started to think about how to solve this problem using machine learning.

New technology from Stanford scientists finds long hidden quakes and possible

Earthquakes detected and located by EarthquakeTransformer in the Tottori area. Image credit: Mousavi et al., 2020 Nature Communications

The group has produced a series of increasingly powerful detectors. A 2018 model called PhaseNet, developed by Beroza and graduate student Weiqiang Zhu, adapted algorithms from medical image processing to excel at phase-picking, which involves identifying the precise start of two different types of seismic waves. Another machine learning model, released in 2019 and dubbed CRED, was inspired by voice-trigger algorithms in virtual assistant systems and proved effective at detection. Both models learned the fundamental patterns of earthquake sequences from a relatively small set of seismograms recorded only in northern California.

In the Nature Communications paper, the authors report they’ve developed a new model to detect very small earthquakes with weak signals that current methods usually overlook, and to pick out the precise timing of the seismic phases using earthquake data from around the world. They call it Earthquake Transformer.

According to Mousavi, the model builds on PhaseNet and CRED, and “embeds those insights I got from the time I was doing all of this manually.” Specifically, Earthquake Transformer mimics the way human analysts look at the set of wiggles as a whole and then hone in on a small section of interest.

People do this intuitively in daily life – tuning out less important details to focus more intently on what matters. Computer scientists call it an “attention mechanism” and frequently use it to improve text translations. But it’s new to the field of automated earthquake detection, Mousavi said. “I envision that this new generation of detectors and phase-pickers will be the norm for earthquake monitoring within the next year or two,” he said.

The technology could allow analysts to focus on extracting insights from a more complete catalogue of earthquakes, freeing up their time to think more about what the pattern of earthquakes means, said Beroza, the Wayne Loel Professor of Earth Science at Stanford Earth.

Hidden faults

Understanding patterns in the accumulation of small tremors over decades or centuries could be key to minimizing surprises – and damage – when a larger quake strikes.

The 1989 Loma Prieta quake ranks as one of the most destructive earthquake disasters in U.S. history, and as one of the largest to hit northern California in the past century. It’s a distinction that speaks less to extraordinary power in the case of Loma Prieta than to gaps in earthquake preparedness, hazard mapping and building codes – and to the extreme rarity of large earthquakes.

Only about one in five of the approximately 500,000 earthquakes detected globally by seismic sensors every year produce shaking strong enough for people to notice. In a typical year, perhaps 100 quakes will cause damage.

In the late 1980s, computers were already at work analyzing digitally recorded seismic data, and they determined the occurrence and location of earthquakes like Loma Prieta within minutes. Limitations in both the computers and the waveform data, however, left many small earthquakes undetected and many larger earthquakes only partially measured.

After the harsh lesson of Loma Prieta, many California communities have come to rely on maps showing fault zones and the areas where quakes are likely to do the most damage. Fleshing out the record of past earthquakes with Earthquake Transformer and other tools could make those maps more accurate and help to reveal faults that might otherwise come to light only in the wake of destruction from a larger quake, as happened with Loma Prieta in 1989, and with the magnitude-6.7 Northridge earthquake in Los Angeles five years later.

“The more information we can get on the deep, three-dimensional fault structure through improved monitoring of small earthquakes, the better we can anticipate earthquakes that lurk in the future,” Beroza said.

Earthquake Transformer

To determine an earthquake’s location and magnitude, existing algorithms and human experts alike look for the arrival time of two types of waves. The first set, known as primary or P waves, advance quickly – pushing, pulling and compressing the ground like a Slinky as they move through it. Next come shear or S waves, which travel more slowly but can be more destructive as they move the Earthside to side or up and down.

To test the Earthquake Transformer, the team wanted to see how it worked with earthquakes not included in training data that are used to teach algorithms what a true earthquake and its seismic phases look like. The training data included one million hand-labelled seismograms recorded mostly over the past two decades where earthquakes happen globally, excluding Japan. For the test, they selected five weeks of continuous data recorded in the region of Japan shaken 20 years ago by the magnitude-6.6 Tottori earthquake and its aftershocks.

The model detected and located 21,092 events – more than two and a half times the number of earthquakes picked out by hand, using data from only 18 of the 57 stations that Japanese scientists originally used to study the sequence. Earthquake Transformer proved particularly effective for the tiny earthquakes that are harder for humans to pick out and being recorded in overwhelming numbers as seismic sensors multiply.

“Previously, people had designed algorithms to say, find the P wave. That’s a relatively simple problem,” explained co-author William Ellsworth, a research professor in geophysics at Stanford. Pinpointing the start of the S wave is more difficult, he said, because it emerges from the erratic last gasps of the fast-moving P waves. Other algorithms have been able to produce extremely detailed earthquake catalogs, including huge numbers of small earthquakes missed by analysts – but their pattern-matching algorithms work only in the region supplying the training data.

With Earthquake Transformer running on a simple computer, analysis that would ordinarily take months of expert labor was completed within 20 minutes. That speed is made possible by algorithms that search for the existence of an earthquake and the timing of the seismic phases in tandem, using information gleaned from each search to narrow down the solution for the others.

“Earthquake Transformer gets many more earthquakes than other methods, whether it’s people sitting and trying to analyze things by looking at the waveforms, or older computer methods,” Ellsworth said. “We’re getting a much deeper look at the earthquake process, and we’re doing it more efficiently and accurately.”

The researchers trained and tested Earthquake Transformer on historic data, but the technology is ready to flag tiny earthquakes almost as soon as they happen. According to Beroza, “Earthquake monitoring using machine learning in near real-time is coming very soon.”

Source: Stanford University




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Google Pixel 4a Review | NDTV Gadgets 360

After the disappointing launch price of the Pixel 3a in India last year, and the decision to not launch the Pixel 4, there has been little reason to get excited about the new models launched this year. Google is not launching the Pixel 5 or the Pixel 4a 5G in India, at least not yet, but it has launched the Pixel 4a. The most affordable member of this year’s Pixel series, the Pixel 4a is priced a lot more aggressively this time around in India, at Rs. 31,999.

This year, Google is keeping things simple. There’s just one version of the Pixel 4a, so no XL option. It’s also available in only one configuration, with 6GB of RAM and 128GB of storage, and in only one colour – Just Black. I have spent a lot of time with it following my initial impressions a few weeks ago, and now it’s time to see if Google has done enough this year to get people interested again.

Google Pixel 4a design

There’s something very likeable about the Google Pixel 4a’s design. It’s not flashy or in-your-face; in fact it’s the exact opposite and yet it looks attractive. Google has used a unibody polycarbonate shell with a soft-touch matte finish. It looks nice and doesn’t attract fingerprints. The Pixel 4a is relatively slim at 8.2mm and really light, at just 143g. The overall compact dimensions of the body and the rounded edges make it a very comfortable phone to handle.

The volume and power buttons are placed on the right, and offer good tactile feedback. There’s a headphone jack on the top, a tray for a single Nano-SIM on the left, and the speaker and USB Type-C port on the bottom. The Google Pixel 4a only accepts a single physical SIM, but it does support an additional eSIM.

The back has a capacitive fingerprint sensor, so there’s no in-display sensor despite this phone having an OLED panel. This isn’t a big deal, as the fingerprint sensor works very well and can be used to pull down the notification shade with a swipe gesture. However, there’s no option for face recognition on the Pixel 4a.

The Pixel 4a has a simple design and yet looks good

 

Google has thankfully ditched the massive bezel of the previous generation for much narrower ones on the Pixel 4a. The borders are still a bit thick but they’re more or less even all around the display. You get a hole-punch cutout for the selfie camera. The display is a bit larger than that of the Pixel 3a, measuring 5.8 inches diagonally. It’s an OLED panel with a full-HD+ resolution. It supports HDR10 playback and is made using Gorilla Glass 3 for scratch protection.

One feature that’s missing compared to last year’s model is the Active Edge sensors. On previous Pixel phones, you used to be able to activate Google Assistant by squeezing the pressure-sensitive side panels. On the other hand, Google has kept the Now Playing feature, which automatically recognises songs being played in the background and displays the title and artist on your lockscreen or always-on display.

In the retail box of the Google Pixel 4a, you’ll find an 18W Type-C charger, a USB Type-C to Type-C cable, a Quick Switch adapter for importing data from an older phone, a SIM tool, and documentation. You don’t get any case or headset.

Google Pixel 4a performance and battery life

The Google Pixel 4a uses the Qualcomm Snapdragon 730G SoC, which is not the most powerful SoC you’ll find in phones at this price, but is good enough. There’s 6GB of LPDDR4X RAM and 128GB of storage, which again, are fairly adequate. The Pixel 4a supports 4G VoLTE, dual-band Wi-Fi ac, Bluetooth 5, NFC, and four satellite navigation systems. There’s no wireless charging or IP rating, but you do get stereo speakers. The Pixel 4a also features Google’s Titan M security hardware for biometric authentication and other security-related functions.

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The Pixel 4a runs lean stock Android without any bloatware

 

For software, units in the market at the time of the India launch are running Android 10 out of the box, but a final Android 11 update is available. My review unit was already running Android 11 when I began using it. If you’ve used a Pixel smartphone before, you know what to expect. The interface is completely clean, with no bloatware and just the essential Google apps preinstalled. There’s a Personal Safety app from Google which lets you set up emergency contacts, etc. There’s a Pixel Tips app to help first-time Pixel users get acquainted with their smartphone.

Google has incorporated some basic gestures, which can be found in the Settings app. You can enable gestures to quickly access the camera, silence an incoming call, etc. Being a Pixel phone, Google offers a minimum of three years of OS and security updates.

The relatively powerful hardware combined with Google’s lean software makes the usage experience wonderful. Unlocking the phone with the fingerprint sensor is quick, the interface is snappy, and the always-on display is great for peeking at the time or unread alerts. Google Assistant is speedy too, be it transcribing what you just said or fetching search results. The Pixel 4a unfortunately misses out on a higher refresh rate display, even 90Hz, which would have made the experience even better.

I found the display to be pretty good for watching content on. Colours are vivid, blacks are deep, and text is generally sharp. The screen gets very bright too but whites look a bit murky even at full brightness. This is especially noticeable when compared side by side with something like the OnePlus Nord, which is in the same price segment. HDR content looks good, whether played locally or through streaming apps. The stereo speakers sound good and get decently loud, although the bottom-firing one is a bit louder than the earpiece.

Gaming was also enjoyable. Everything from simple titles such as Mars: Mars, to heavier ones such as Call of Duty: Mobile ran smoothly. I didn’t feel any heating issues either, other than the side of the frame getting a bit warm.

pixel 4a review selfie camera s

Apps and games run well on the Pixel 4a, with no real heating issues

 

The Google Pixel 4a has a 3,140mAh battery, which is a modest capacity by 2020 standards. Unsurprisingly, it didn’t fare too well in our HD video battery loop test, running for a little more than twelve and a half hours. However, I am happy to report that with medium to light real-world usage, I was able to make the Pixel 4a last for one full day on a single charge. On days with lots of camera usage and video watching, it did drain a bit faster, so if you’re expecting a phone that can last more than a day, you might be a little disappointed.

The Pixel 4a can fast-charge its battery with the bundled 18W adapter to about 52 percent in half an hour, and up to 88 percent in an hour. It took about 15-20 minutes more to reach full capacity. Since it uses the USB Power Delivery (PD) standard, you can use any Type-C PD charger to quickly charge the Pixel 4a.

Google Pixel 4a cameras

The Google Pixel 3a had an impressive set of cameras, not just for its segment, but in general. The Pixel 4a sticks to a single front and rear camera, with the same resolutions as their predecessors. The rear camera has a 12.2-megapixel sensor and an f/1.7 aperture, dual-pixel PDAF, and optical stabilisation. The front camera uses an 8-megapixel sensor and has an f/2.0 aperture. Sadly, there isn’t a physical ultra-wide-angle rear camera like you get on the 5G variant of the Pixel 4a, and on most other phones at this price level now.

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The Pixel 4a has just a single rear camera

However, Google hasn’t skimped on camera features in software, which are mostly the same as what you’d get with the flagship Pixel 5. There’s Night Sight, Top Shot, Super Res Zoom, Motion Autofocus, and Live HDR+. Frequent Faces is a feature, which when enabled, is said to recognise and recommend shots that are focused on specific faces that you capture often, when selecting a Top Shot or Motion Photo. When shooting stills, the Google Pixel 4a lets you tweak the exposure and shadows independently before taking a shot, and even shows you the effects of each adjustment in real-time in the viewfinder. For videos, you can manually adjust the exposure too, and tapping the viewfinder once will begin focus tracking.

The camera app has nearly all the shooting modes one would expect. There’s no manual mode, but you can enable RAW capture through the Settings menu.

Landscape photos shot during the day looked stunning. The Google Pixel 4a managed to capture natural-looking colours and well-balanced exposures. Details were fairly good, but when magnified, I noticed a bit of noise, and finer textures and edges didn’t have very good definition. Close-up shots had very good details, rich colours, and a pleasing background blur. In Portrait mode, I could digitally zoom in up to 4x. Portrait shots generally looked striking with good edge detection, details, and colours.

Google Pixel 4a Review NDTV Gadgets 360

Google Pixel 4a camera sample (tap to see larger image)

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Google Pixel 4a close-up camera sample (tap to see larger image)

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Google Pixel 4a portrait camera sample (tap to see larger image)

 

The Pixel 4a did an equally good job with low-light photos. Even without Night Sight, images looked clean with minimal noise, colours were vivid, and details were well defined. Night Sight helps correct the exposure a bit, and in very dark scenes, it can make an impactful difference.

Pixel smartphones have thus far been very good for selfies, and that continues. Selfies shot in daylight pack in very good detail, and thanks to the wide field of view, you can get quite a bit of the background in the frame. Portrait mode works well for selfies too. In low light, Night Sight makes a big difference to the type of photos you can capture. When used in combination with the screen flash (which is more of a fill-light than a flash), the results are even better.

1603502758 548 Google Pixel 4a Review NDTV Gadgets 360

Google Pixel 4a Night Sight camera sample (tap tp see larger image)

1603502758 332 Google Pixel 4a Review NDTV Gadgets 360

Google Pixel 4a selfie camera sample (tap to see larger image)

 

The Google Pixel 4a can shoot up to 4K video at 30fps. During the day, I found the quality and stabilisation to be very good. Videos captured with the selfie camera are also electronically stabilised. Even in low light, video quality is pretty decent, with good exposure and a tolerable amount of shimmer when you walk.

I really wish Google had included an ultra-wide-angle camera, as that would have made the setup pretty much perfect. Even so, both cameras on the Pixel 4a deliver consistent and reliable results.

Verdict: Should you buy the Pixel 4a?

The Google Pixel 4a is being sold on Flipkart at a promotional price of Rs. 29,999, which is a bit lower than its official retail price of Rs. 31,999. I think it’s a good buy at this price for anyone looking to capture good photos and video with their smartphone. Unlike last year’s Pixel 3a, the Pixel 4a isn’t crippled too much in terms of processing power. It features a good SoC as well as enough RAM and storage to offer a decent gaming performance. Battery life might not be as good as what the competition achieves, but despite its small capacity, you should expect this phone to last nearly a full day on average.

The OnePlus Nord is a very tempting competitor to the Google Pixel 4a, and it manages to one-up this phone in almost all areas, on paper anyway. So which one should you buy? That’s a discussion for another article, coming up very soon.

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