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Edgar Cervantes / Android Authority
Active Noise Cancelation (ANC) was once a feature reserved for high-end, expensive headphones. This wonderful attribute can block out unwanted external noise, letting the user focus on whatever they’re listening to. Technology continues to evolve. ANC has since become much more affordable and widespread, and good ANC is getting scaringly good.
I recently wrote about trying the best ANC in the world and almost getting hit by a bus. Put simply, such efficient ANC is unsafe to use most of the time. With that in mind, we must set some ground rules and possibly make some habit changes too. Let’s talk about them.
The dangers of good ANC
Edgar Cervantes / Android Authority
The best modern Active Noice Cancelation is getting so good it would be unsafe to have it on at all times. I recently tested the Bose QuietComfort Earbuds 2, which Bose claims have the “world’s best noise cancelation.” While I was amazed at how good the technology was, it quickly became an issue.
Suddenly, I couldn’t hear what people around me were saying, or hear cyclists passing by me. It was more worrisome once I noticed I couldn’t hear cars, motorcycles, or larger vehicles in the busy streets of NYC. A bus zoomed right in front of me once, and I never heard it coming. I missed most announcements during the flight back from the NYC launch event.
I am sure I wouldn’t be able to hear my kid in distress if she had an accident while I’m zoned out.
Problems ensued once I got home. My wife’s frustrated yells sounded like a far-off hum. I am sure I wouldn’t be able to hear my kid in distress if she had an accident while I’m zoned out. We’re not even touching on appliances, alarms, and other important noises you definitely want to be able to hear at all times.
What’s the solution to all these worries? Let’s talk about some possible fixes.
Adapting yourself to good noise cancellation
I only use ANC when I’m alone in my room or working at the office.
I only use Quiet Mode alone in my room, or at the office while working. When in the streets, or riding public transportation, I am either using Aware Mode or only using one earbud at a time. The idea is to always be able to listen when there’s any chance it might be necessary to. In summary, we should all use ANC responsibly.
Related: The future of headphones is an OS in your earANC modes
For example, you can customize the Bose QuietComfort Earbuds 2’s noise cancellation levels within the app. This can help you pick which types of sounds you would like to filter through and be able to hear some kinds of noises. You can create and customize modes for commuting, running, exercising, and more.
These customized modes work sufficiently well, but they’re not enough. You can still miss some important noises, or hear unimportant ones. The problem is that they are pretty much preset noise filtering modes. They don’t really adapt or use any form of machine learning. Integrating artificial intelligence into ANC headphones might be a solution. A smart ANC might be able to recognize approaching vehicles and allow the noise to filter through. Similarly, it can probably tell when an airplane announcement is broadcast. Or maybe even recognize voices asking for help, or in distress. There are many other noises intelligent headphones can identify, including sirens, dogs barking, babies crying, car alarms, etc.
Imagine a world with more visual alerts everywhere.
Here’s a crazier idea. What if we create a standard in which some announcements, alarms, or anything else can transmit a frequency we can’t pick up with the naked ear? Then we can program all devices to turn off ANC when they pick up this frequency. It sounds nuts, but something’s gotta give.
Of course, we can adapt our surroundings in plenty of ways, but it might require too much work and too many resources. It seems the best solution might still be to make headphones smarter and use artificial intelligence to help with ANC safety. Until technology evolves, make sure to stay safe and use ANC responsibly.
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It’s always sounded too good to be true (and it is, really) but because they all do it, it’s become the norm. And as I always explain, these insane-sounding deals are possible because they’re based off the price of a one-month subscription.
Relative to multi-year subscriptions, one-month plans are very poor value. Typically a single month of VPN use will cost you around £8-12 (the same in US dollars), but a two-year subscription might be only £40-60 / $50-70.
A minority will pay for a month’s use to test out the service before subscribing for longer, or because they need only short-term use for a holiday, work trip or something else. The fact is, no-one subscribes long term on a rolling one-month basis and that’s why the discounts are arguably fake news.
NordVPN has seemingly woken up to the fact that the extreme discounts are a problem because it has now decided to base its deals not on the single-month price but – more sensibly – on the price of renewal.
In an email to Tech Advisor, NordVPN said, “For a while now, we’ve been discussing how our discounts for the 1y and 2y plans were calculated based on the 1-month plan. We’ve come to the conclusion that this way of calculating can be both confusing and sometimes misleading, hence it needed changing.”
It’s refreshing to hear the admission. The new discounts are now a more reasonable-sounding 60% off for the two-year plan and 39% for the one-year, and are based on the renewal price at the end of the deal period.
The fact that prices jump upon renewal might come as a shock to some who assume they’ll be billed the same amount when their subscription expires, but it highlights a different problem: not all VPN services can follow NordVPN’s lead.
That’s because they don’t all increase prices upon renewal, which would mean they have no option but to stick with using the one-month price as the basis for any discounts. For example, CyberGhost, ExpressVPN and Hidden24 charge the same price on renewal.
In the UK, it looks like NordVPN’s two-year subscription costs £2.49 per month (saving 59%), but VAT is added at the checkout which raises the real cost to £2.99 per month.
All of this is unnecessary, in my view. Assuming you’re willing to subscribe for a year or two, most VPN services offer genuinely good deals that don’t need to oversold. For the price of a Starbucks coffee, or thereabouts, you’re getting a month’s use of a VPN service. Plus, you can usually use the service on 5-10 devices at the same time.
So while NordVPN’s new discounts are a step in the right direction, what I really want to see is honest pricing… from Nord and all VPN services. That means displaying the total cost you’ll pay (including taxes and not hiding renewal prices in the small print) and stopping the practice of including free months in the monthly price calculation to make it look lower than it really is.
Finally, let there be an end to all countdown timers or “limited time deal” banners that try to force you to subscribe quickly, lest you delay and miss out on the best price. In general, these prices are available year round and tricks like this don’t exactly help to build trust with customers.
And trust is what VPN services rely on, because they have access to all the data from your devices that passes through their severs. This is why independent audits are so important. Without them, you simply have to take the company’s word for it that they don’t log any data and stick to everything else they claim to do in their privacy policies. As a user, you’ve no way to know what happens behind the scenes.
As ever, the best way to choose a VPN is to read independent reviews that go beyond the crazy discounts and evaluate every aspect of the service. So if you’re looking for one, the best place to head now is to our roundup of the best VPN services where NordVPN remains our top recommendation: in spite of the pricing issues, it’s a superb all-round product.Related articles for further reading
The Samsung Galaxy Note 10 and Note 10 Plus have hit the shelves and have garnered mostly positive reviews, so far. Both devices pack bleeding-edge hardware, and Samsung, too, has done a great job in the software department. The devices are in line to receive Android 10 update from Samsung that will be called One UI 2.0. While you’re here, be sure to check out some of the coolest Galaxy Note 10 tips you must be using already.
However, like every other device on the market, the Note 10 duo, too, has its fair share of bugs and quirks. In this section, we’ll take a look at some of the Note 10 issues users have encountered, and maybe help you navigate through rough water.
No 3D Scanner App
Note 10 Plus’ Depth Vision camera is one of the device’s standout features. It doesn’t have many applications at this point, but the ability to 3D scan an object is nothing short of awe-inducing. Surprisingly, many users haven’t been able to find the 3D Scanner app to use the feature. If you, too, are frustrated with the oversight, there might be a solution for you.
Step 1: Sideload the 3D Scanner app.
Step 2: Open Bixby Vision.
Step 3: Slide over to apps and access.
Galaxy Note 10+ Signal Issues
Maintaining a steady connection for making and receiving calls is one of the pre-requisites of any smartphone. The Samsung Galaxy Note 10+ is an impeccable device in its own right, but many users have been enduring signal reception issue and frequently dropped calls.
Users have restarted their device multiple times and even performed multiple factory resets, but the issue hasn’t been eradicated, so far. Samsung could roll out an update in the future, but for the time being, there’s no option than to stay put.
Linux on DeX not supported on Note 10
The Samsung DeX one of Galaxy flagship devices’ standout features. It allows you to run all your standard Android apps in a desktop-like environment. Running Linux on a mobile isn’t a new idea, but DeX actually makes it worth the ‘hassle.’ As per Samsung’s official website, Linux on DeX is currently supported on select Android Pie devices, and surprisingly, the company’s current flagships, the Note 10 duo, hasn’t been included.
Users are disappointed with Samsung’s treatment, with many claiming that Note 10’s DeX functionality was one of the main reasons why they chose to migrate in the first place. Samsung hasn’t revealed a rollout date or even whether they are working on bringing the functionality to the devices, but given how frustrated users are, don’t be surprised to see an official announcement sooner than later.
Possible solution: None (so sorry!)
Note 10 Activation Error
When you purchase a $1000-device, activating the device should be the least of your concerns. Sadly, many Note 10 buyers have been having a hard time activating their device. From Sprint to AT&T and every other carrier in between, it’s been an epidemic, and Samsung’s trying its best to propose an acceptable solution.
If you, too, are dealing with something similar, there are few steps you could perform to potentially get rid of the problem.
Step 1: Insert your new SIM Card into your Note 10. Make sure it’s powered on.
Step 4: Go through and complete the prompts. You have successfully activated your Note 10 device.
Only 8 Languages on Samsung Keyboard
Like every other Samsung Galaxy smartphone, the Note 10 brothers, too, run the Samsung Keyboard, by default. The keyboard isn’t bad by any means, but it does come with its fair share of quirks.
On the Note 10, the keyboard seems to have only eight additional languages, which, as you’d expect, excludes a number of other primary languages. Frustrated with the issue, users have already contacted Samsung to get rid of the problem for good. The South Korean OEM has acknowledged that it is a known issue and can’t be fixed until a Samsung Keyboard update comes out. The company is yet to announce a tentative release date.
Possible solution: None (so sorry!)
Lack of Hard Press Home Button
Up to the Galaxy Note 9/S9 devices, Samsung used to bundle in an invisible home button, allowing you to go home by long-pressing even when the screen was off. If you’re coming from a previous-gen Galaxy device, you’re likely to find Samsung’s new configuration a bit underwhelming.
The company has gotten rid of the invisible Home button on the S10/Note 10 lineup, probably due to the in-display fingerprint reader. Getting rid of such a celebrated feature hasn’t sat well with most users, with many claiming Samsung should have thought twice before removing it.
Received only $300 credit only instead of $600
If you are wondering why your $600 credit was reduced to $300 on Galaxy Note 10 purchase, Samsung’s only giving away the full credit if and only if you purchase the unlocked variant.
What is XQuery
Xquery can be described as XML (Extensible query language) Query language. As the name suggests XQuery is a querying and functional programming language to play with data or pull out data from XML documents. It was developed by W3C (World wide web consortium) to pull out the data over the widespread worldwide web. The latest version is version 3.1 released in March 2023 after the previous release in 2014. XPath is the subset of XQuery which is also used to extract the data, but the syntax is different than XQuery. It works in line with SQL queries. So, the structure of it can be easily understood by SQL developers.
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Web development, programming languages, Software testing & othersWhy do we Need XQuery?
The use of XQuery can be well understood by the below-mentioned statements published under W3C by J.Robie when XQuery was introduced. “The mission of the XML Query project is to provide flexible query facilities to extract data from real and virtual documents on the World Wide Web, therefore finally providing the needed interaction between the Web world and the database world. Ultimately, collections of XML files will be accessed like databases”.
The primary use of XQuery is to extract data from XML databases. It is also capable of extracting data from relational databases that store XML data. XML follows the hierarchy structure containing nodes inside the node. These nodes are taken care of by the XML querying language. It is also used to change the data over the fly. That means we can update the data while transmitting itself. This functionality, when added up with querying language, provides enough power to XQuery to handle most of the XML data over the web.How does XQuery Work?
We need to have a processor that helps us in rendering the usage of XQuery. We can use Saxon-HE (widely used). As this is open-source software, we can download it from the internet along with the guidebook for installation. We need to set up classpaths as we do for JAVA installation. This supports the latest version of XPath, XQuery, and XSLT (Extensible Stylesheet Language Transformations). We can have a database for querying or have an XML file to extract the data from.
In case we have an XML data file named “test.xml”, we can create a query and save it in a separate file with the relevant expression. Here we can save our query in a file named “testquery.xqy”. We then need a driver program in JAVA that will establish a connection with the database using connection objects. Once the connection is maintained, the result set is initialized. We can run this query by including query files in the JAVA driver program. In this case, we can have a JAVA program named “querydriver.java”.
Note: Make sure we have JDK 1.5 or above installed in our system to use this functionality.
let $fruit := document(“checkingfruitcolor.xml”) /Data about fruits and its color is stored in this file.. for $color in $fruit /discovering colors defined in the file.Features and Advantages of XQuery Features
Some of the noteworthy features of the XQuery language are pointed out below:
XQuery is a functional programming language that not only supports querying language but also offers to do data changes thus promoting dynamic websites.
XQuery has simple syntax on the lines of SQL language. It is easy to understand and powerful at the same time.
XQuery works to dig into the hierarchical structure until it discovers the data. The same can be seen when we navigate through the path in the windows file manager. XPath used to pull out data based upon file path is the component of XQuery.
It is a universal language. Thus, it is accepted worldwide with certain standards to be followed as defined by W3C. Its simplicity and syntax encourage coders to go with its implementation in projects.Advantages
XQuery can be used to extract data from any type of structure like hierarchical, tabular or graphical data structure.
It can be used to pull out the data directly from the website. This reduces a lot of work and saves time.
Similarly, XQuery can be used to build websites. Reduces the number of efforts we put in to build a website.
It works efficiently with relational databases.
Along with querying, it can be used to transform the data while transmitting it. This is useful for dynamic data handling. Because of this functionality, we can XQuery as a functional programming language as well.
It can be used with object-oriented databases as well as reducing impedance mismatch.Conclusion
XQuery is one of the widely used universal languages capable of displaying, retrieving, and changing data over dynamic web pages. It was developed to challenge complex languages like C++, JAVA, etc. We can have logic written in XML and just use the JAVA file to establish and maintain a connection with the database.Recommended Articles
What is XPath?
The human capital of a company needs to achieve its very best for the company to be successful and do extraordinarily well in this cutthroat environment that we are a part of. For human resources to stay motivated throughout their journey and not get diluted by their personal problems, an organization needs to have a good leader and a good manager.
These people help the employees look beyond the mundanity of their activities to their bigger contribution towards the attainment of the organization’s goals. They keep the employees motivated, happy, and energetic through different monetary and psychological rewards.Difference Between a Manager and a Leader
A manager and a leader are not synonyms for people. Both are needed for survival in the long term. A leader is someone who gains the position because of their bigger vision and influential power gained through hard work and trust. A manager is someone who has proven their abilities and skillset through their accolades and knowledge. In simple words, a leader is chosen by the people, and a manager is elected for the position.
In this article, we will be discussing the top qualities a manager and a leader need to have to ensure that people follow them and their commands to achieve the larger goal. We will not be having different pointers because it would be repetitive in a manner.
The different integral qualities that a manager and a leader need to have are −Excellent communication skills, both written and verbal
A manager needs to convey to the employees what goals, hierarchies, and management systems the organization has set for them and what grievances and challenges the employees are facing in their daily work routine to the top authorities. A leader needs to convey the bigger vision to the people and ask for constant support. For both roles, excellent verbal and written communication skills are a mandate; otherwise, there are going to be miscommunications, trust issues, and misunderstandings on a daily basis.Empathy
Simply asking the employees to get the task done irrespective of the employee’s internal and external situations is going to negatively impact the employee’s productivity. An employee will only deliver their best work when they feel that they are heard and valued in the organization. A good leader and a good manager must have empathy instilled in them. Empathy is being in the other person’s shoes and thinking about the situation.Decision-making ability
A manager and a leader need to have decision-making power. They cannot be fickle-minded. With decisions also comes ownership. A decision might not always be right, so they need to have the ability to accept and stand by their mistakes. An employee will only value a leader and a manager who can take decisions based on historical facts, trends, and future vision.Honesty
A manager and a leader need to be honest, no matter how difficult the situation is. Employees and followers cannot trust and work for someone who is not honest or who cannot stick to his or her words. With honesty comes the trust of the people.Ability to motivate
A pessimistic approach is not going to work with people. They look for a lot of positivity, happiness, and inspiration in their managers and leaders. It is their prime duty to ensure that the employees are motivated to achieve the smaller targets set by the manager and that the followers are motivated enough to work for the bigger vision even after thousands of roadblocks in between.Problem-solving approach
The manager is hired, and the leader is followed because they can provide solutions to the problems. Most of the problems faced by the employees daily will require instant and long-term solutions. They need to see the silver lining in the bleakest of times.Flexibility while operating
“It is how it is” and “My Way or the Highway” is not an approach that works in today’s era. Employees need to have their own space where they can seek solutions, and managers and leaders must be flexible or accommodating enough to accept the same. With flexibility comes cooperation from the other party and trust. Being flexible in this ever-changing world is the key to survival.Accountable for one’s action
With authority or power comes accountability. A manager and a leader are answerable to the top authorities and the employees. When the time arises, they cannot just throw a particular person or team under the bus. They must be brave enough to cover for their teammates and be accountable for their actions.Free from personal bias
A manager and a leader cannot play the game of favorites within the organization and their community. They should be able to see the dilemma from a neutral point of view. Good leaders and Managers are people who can keep their personal likes and dislikes at home. Being just and fair is an integral part of gaining an employee’s and followers’ trust.Creative approach
No matter how good the risk analysis team is, they cannot foresee all the problems. While implementing a project or working towards a bigger vision, a manager and an employee will face many unpredictable and sudden roadblocks. They need to be creative enough to think outside the box and find solutions.Time management skills
A good manager and a leader should know how to manage time. They cannot be swayed away in meetings or in goal attainment. They must be disciplined and practice time management so that they can be an inspiration to others.Should be Ethical by nature
A manager and a leader need to have personal ethics and should comply with the values of the organization. Unethical practices and people cannot flourish in the long term. An ethical leader will only give birth to an ethical team.Self-awareness
The managers and leaders are also imperfect. They might not be at their best or always make the right decisions. They are humans, and it is natural for them to have weaknesses or make mistakes. What differentiates them from ordinary people is that they have self-awareness. They know their weaknesses and are willing to accept and work on them. They know their limitations.A goal-oriented approach
A leader and manager should not get swayed by emotions. They need to have a smaller set of goals that will help them achieve their vision. They have to build goals, help the employees accomplish them, and monitor their results as well. A goal-oriented person with the above-mentioned soft skill is a perfect match for a manager or leader.
The above-mentioned qualities could be inbuilt into a person or could be practiced as well. These are the skill sets that ensure a successful manager and a good leader for the organization. A manager and a leader are ordinary people; they just know how to influence and inspire people in magical ways.
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Active noise-cancelling, or active noise control, is a feature that’s gone from relative rarity to practically a prerequisite for any wireless headphones and earbuds released. As mobile meetings and work from home become commonplace, so does putting more microphones in headphones. But taking calls from the coffee shop means dealing with environmental noise. The ANC acronym on headphone packaging lets you know that all those microphones surrounding your head can help you concentrate and communicate even in a sea of chatter. And if you just want to relax with a favorite album or stay in the zone on a run, ANC can help with that, too. In this article, we’ll give you a brief rundown that answers what is ANC (active noise-cancelling) and offers some key things to watch for when shopping for top-tier noise suppression tech.What is ANC?
Headphones are just earmuffs with a better soundtrack. Closed-back headphones, not to mention earphones, have delivered passive noise-cancelling—the simple act of covering the ear canal to keep out unwanted sound—since Day One. That’s most effective against high frequencies, however. Now technology is being leveraged to further improve the environmental extremes headphones and earphones can combat—no more continually jacking the volume and permanently damaging your hearing. But just because active noise-cancelling is in the news doesn’t mean it’s new.
Despite feeling like very modern tech, noise reduction circuitry has been around and evolving for the better part of a century. In his 1936 patent, inventor Paul Lueg described “a process of silencing sound oscillations, especially of a disturbing nature” achieved using a microphone and a loudspeaker. Later, in the mid-1950s, engineer Lawrence J. Fogel patented systems for improving the audibility of speech in plane and helicopter cockpits that closely resemble the ANC tech we know today. The Bose Corporation brought this technology to consumers starting in the late ’80s. To get to the bottom of exactly how ANC works, we need to start with a bit of the kind of simple physics they explored.It’s just a phase
Sound itself is immaterial, meaning that it can’t exist without a medium through which to move. In our everyday world, sound consists of acoustic pressure waves that originate from mechanical vibrations and travel through air molecules. Like all waves, these have alternating peaks and valleys, and those physical properties can be disrupted or enhanced through the introduction of other waves. This is where the mechanic behind active noise-cancelling systems lies: by capturing ambient noise using a microphone, analyzing it, and replaying it simultaneously with inverted phase, the opposing peaks and valleys cancel each other, potentially reducing the wave’s amplitude to nothing. In other words, if the offending sound wave moves in one direction, the ANC sound wave moves in the opposite—with the resulting effect being a great reduction or even a full elimination of the noise. While this can affect the tone of a headphone, digital signal processing has progressed to the point that any shifts are compensated for. It should almost go without saying, however, that ANC headphones aren’t for audiophiles, producers, and purists.Microphones, smartphones, and active noise-cancelling
Ever wondered what these little ports are for on ANC headphones? They’re the microphones listening and learning to shut out your surroundings. Tony WareStrength in numbers
Simultaneous noise cancellation and voice capture requires multiple microphones to get the job done effectively. Without multiple microphones, an ANC device has no way to tell the difference between desirable noise from the user’s speech and environmental noise; a single-microphone design would simply cancel out all noise, period. For this reason, most modern smartphones use at least two microphones to achieve better call clarity, placing one microphone next to the user’s mouth and another as far away as possible. With a multi-microphone system like this, smartphone ANC systems can not only capture the user’s voice clearly but even enhance it by comparing it to the ambient noise and knowing exactly what audio to let through.What’s the opposite of active noise-cancelling?
If ANC earbuds and headphones contain multiple microphones to capture the outside world, they should theoretically be able to play back what they hear in your surroundings, which is exactly how Transparency mode works. By offering users the ability to selectively hear external noise even while listening to other media, Transparency mode (called everything from SurroundSense to simply Ambient Mode by different manufacturers) can potentially allow for better productivity and heightened situational awareness while performing activities in public spaces. Since Transparency mode uses existing microphones and doesn’t require any extra hardware, most active noise-cancelling earbuds and headphones include this functionality by default. Still, if you want to get the most mileage and versatility out of your ANC tech, double-check that your choice has this feature.React and adapt
One of the more novel ways that manufacturers are harnessing the microphones in their ANC products comes in the form of adaptive equalization, most notably found in the AirPods Pro and AirPods Max from Apple. In these designs, an inward-facing microphone measures the sound inside the user’s ear and uses that information to make on-the-fly EQ adjustments to the low and mid frequencies. The end result, in theory, is a consistent and precise listening experience that’s custom-tailored to the shape of the user’s ear, the various shifts the headphones or earphones make while in motion, and the amount and kind of noise that may be seeping in. If you’re a user who listens to a wide variety of musical genres, podcasts, and other streaming media, adaptive EQ is definitely worth taking for a spin.A step in the right direction
A solid pair of ANC headphones, like the Sony WH-1000XM4 shown here, can turn a crowded space into a serene place. Tony Ware
The performance level of active noise-cancelling headphones is only as good as the design of the device, and even the best designs have their practical limitations. Multi-microphone systems generally do a good job at isolating the voice of the user from the ambient environment, but the louder it gets, the harder it is for the hardware to distinguish between the two. In a very crowded coffee shop or in a subway car, for example, ANC can continue to perform at a very high level but then the mics fail to properly recognize the user’s voice during a phone call in that same environment. Some of this effect can be mitigated by design choices like the number and placement of microphones, and ensuring that they are pointed in narrow, focused directions. Keep in mind, however, that it may be necessary to either switch to your smartphone’s handheld mode if taking a call in a noisy place or step out altogether.Some final thoughts about active noise-cancelling
Whether you’re a power commuter, a powerlifter, or a master of PowerPoint, active noise-cancelling is a convenient and affordable tool for staying focused and productive. The tech behind ANC is relatively simple and now quite commonplace, and it makes everything from taking a phone call to listening to albums that much clearer and enjoyable when compared to traditional speaker designs. If you’ve never experienced the freedom that comes with headphones or earbuds with active noise-cancelling, there’s never been a better time to get started.
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