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How to become a Biomedical Engineer

biomedical

A candidate who wants to pursue a career as a Biomedical Engineer in India should begin their studies in elementary school. Candidates should prepare for a career as a professional Biomedical Engineer by following the stages outlined below. A Biomedical Engineer must have a certain level of education. A candidate must have passed the 10+2 exam with science topics like Biology, Mathematics, and Chemistry to pursue a Bachelor’s degree in Biomedical Engineering.

How to become a Biomedical Engineer?

Biomedical engineers work in a field that crosses engineering and medicine, and they are frequently responsible for the development of life-saving medical technology. Pharmaceutical medications, biocompatible prostheses, imaging equipment, and other goods that aid in the diagnosis and treatment of patients may be developed with the help of these specialists. Aspirants can pursue masters in medical technology to ace in this field.

The road to becoming a biomedical engineer will be quite similar for the majority of people who want to work in this field. As a result, anyone interested in working in this position should consider taking the following steps:

Start in high school:

Starting early in your career as a biomedical engineer is an excellent idea. Take advantage of any advanced placement classes in relevant subjects that are offered. Science subjects like biology and chemistry, as well as technology courses like computer programming and engineering, fall under this category. Before enrolling in a college or university, these courses give an excellent foundation of knowledge.

Extracurricular activities in mechanical engineering or medicine can help you further your education in disciplines that are related to your professional objectives. There are top courses for mechanical engineers that help them transform the medicine industry.

Get a bachelor’s degree in Biomedical Engineering or a related field (Four Years):

Enroll in a four-year biomedical engineering program; otherwise, if the student does not intend to pursue a graduate degree in biomedical engineering, acquire a bachelor’s degree in any engineering discipline. As previously stated, engineering programs that have gained ABET certification should be given serious consideration.

Gain volunteer or intern experience:

The majority of businesses prefer candidates who have received real-world experience through an internship or volunteer program. Many schools and institutions either provide credit for internships or partner with businesses that offer intern or volunteer opportunities. Internships are also available via the Biomedical Engineering Society (BMES) to assist you to obtain experience, increase your knowledge, and develop your talents.

Earn an Advanced Degree in Biomedical Engineering (Two Years or More, Optional):

Once a person has earned a degree, he or she can immediately begin working as a biomedical engineer. Alternatively, he or she may decide to obtain a graduate degree in the profession to be eligible for further, and often more lucrative, job opportunities.

Earn FE or PE license:

Most employers, particularly in government positions, want to recruit licensed biomedical engineers. To become a licensed engineer in this discipline, you must pass two tests.

  • Fundamentals of Engineering (FE): The National Council of Examiners for Engineering and Surveying offers an exam (NCEES). It assesses your understanding of the math and physics required for most engineering tasks.
  • Principles and Practice of Engineering (PE): You must work for at least four years under the supervision of an engineer having this license. The PE exam assesses your engineering knowledge and skills. Because there is no PE test expressly for biomedical engineers, you have the option of taking any of the exams.

A growing demand for biomedical engineers is expected to be created by the expanding opportunities created by new technologies and an increasing use of medical equipment and gadgets.

A quick guide to creating a P&L Statement for a company

P and L statement

What is the profit and Loss statement?

The P&L statement or the profit and loss statement is one of the key financial statements prepared for a company. Otherwise known as the income statement, it is one of the most important financial statements a company issues. This is because it provides a snapshot of the company’s financial situation over a span of time. It is typically calculated for a year or a fiscal quarter. You can find the P&L in the annual financial reports that publicly traded companies must issue and distribute to shareholders as per the law.

A typical annual financial statement comprises the balance sheet, P&L statement and a statement of cash flow. Company’s put up their financial statements on their websites.

What is present inside a P&L statement?

The P&L (profit and loss) statement is often placed at the front of a business plan because it shows how much profit or loss a business generated over some time. The P&L statement, like the income statement and cash flow statement, tells a company’s story by showing changes in the financial accounts over a given period. The balance sheet is different from the income statement because it lists a company’s assets, liabilities, capital, and owner’s equity at a single point in time.

The P&L statement should be reviewed with the cash flow statement to avoid problems with the accrual method of accounting. This is because in this method of accounting the revenue and expenses are mentioned in the P&L statement before any cash payments are made.

The general structure of the P&L statement begins with the top line which shows a company’s gross revenues or sales. Below the top line, the company’s cost of doing business is present and this figure is subtracted from the gross revenue. The cost of doing business typically includes things like operating expenses, cost of labour and material, tax expenses, cost of goods sold and interest expenses. After this, the bottom line is mentioned which is the net income of the company. It is calculated by subtracting the costs of doing business from the revenue. It shows a company’s earnings or profit.

Why are P&L statements important?

The income statement and balance sheet are both very useful in determining the viability of a company because they both offer a very straightforward look at whether or not a company is successful and if it has enough assets to pay off the liabilities that it has accrued. However, both of these financial statements have one main limitation: they do not show you if a company is growing or shrinking.

Profit and loss statements can help you understand how a company is performing. So whether you are doing your research on KFC franchise cost in India or have finalized the d mart franchise cost you can record it all in this statement and can audit and review it in the future. Click here for more info on the franchise business’ P&L statement specifics. For an entrepreneur considering starting a company, these documents can be a key source of information when determining whether the business will generate positive, or negative, earnings. For an established business owner, they provide helpful insights into the financial state of the company. If a profit and loss statement is accompanied by a balance sheet, it provides even more telling statistics.

Find more useful resources: business tax advisory services

Google Launches Grasshopper Gallery on Desktop for Coding Students

Google Launches Grasshopper Gallery on Desktop for Coding Students
Image: Google

Programming is gaining more and more popularity, as this field is rapidly developing. More and more students dream of learning to code. Studying in college takes quite a lot of free time. Therefore, for those who are additionally involved in the study of coding is difficult. So if you’re having trouble with a writing assignment, you might be wondering where to find a writer who could write a speech for me to prevent failure. We advise you to seek help from an online service created to help students with academic assignments.

Two years ago, Google launched Grasshopper, an app for people with no previous coding experience to learn to code. Since its launch in 2018, millions of people have learned fundamental programming concepts, claims Google. The app has grown very popular among students who are enthusiastic about coding and developing their coding skills. The app, as Google says, “has been helping increase access to coding education and helping prepare people for career opportunities in technology.”

Now Google has announced the launch of the Grasshopper Gallery on “desktop” to provide students a place where they can build and create apps, mini-games, or webpages. The tech giant shared the news through a tweet yesterday.

What Grasshopper Gallery Offers

Google Launches Grasshopper Gallery on Desktop for Coding Students

Grasshopper is a core learning platform with a curriculum where students go through guided exercises and learn key coding concepts. In this student-centric learning environment, students across the world learn basic coding concepts like functions, variables, loops, etc. and gain confidence. Now with the launch of the Grasshopper Gallery, the students will be able to apply the skills learned through the Grasshopper app to create visualizations, webpages, mini-games, etc. in the Gallery. According to Google, you can start building things using your own imagination and creativity.

You Can Show Off Your Creations

One more important thing that is present in the Gallery is that people can share their creations with their friends and family. Not just this, you can even use the Gallery to build your own coding portfolio and showcase your abilities and skills to your potential employers.

This is a good initiative from Google for the students who are learning to code. Now they have a free of cost platform to use the skills learned from the core Grasshopper curriculum. Moreover, Google has assured that they’ll continue helping adult beginners to pursue their career dreams.

Grasshopper app is available on all platforms, ie. AndroidiOS, and Desktop. If you’ve already learned coding skills from the core Grasshopper curriculum, you should practice using your skills on Grasshopper Gallery.

How Ranking System Works in HALO Infinite

halo infinite

The latest entry to the highly popular HALO series has got the whole world by storm and for the very right reasons. HALO Infinite was one of the most awaited releases of the year 2021 and the surprise release of the game early on has only made players more thrilled about the game. If you haven’t tried it out yet, the best way to get it is from Gamecamp where you can find all the available deals for the game.

On top of it all, the game’s out for the grab for the Xbox Game Pass players right from the very first day, which has surely played a HUGE hand in the rapidly growing popularity of the game. The developers also made sure that this new title carries over your progress, which definitely is a massive plus.

But the thing is, HALO Infinite seems to be nothing like its predecessor in terms of the ranking system. Developers have made some significant changes to how your rank in the game and players are already going crazy about it, not to mention, confused as to how it actually works.

HALO Infinite Ranking

HALO Infinite has changed the ranking system quite a lot, with players having to grind through the battle pass instead of earning the exp points to rank up. And from experience, we know that the Battle Pass in HALO Infinite takes quite a lot of time to get through.

Fortunately, we don’t have to worry about that as developers have made grinding through the Battle Pass a bit easier for us. But it still takes a lot of effort and skills to climb up the ranks. So the way HALO Infinite ranking system is going to work is you won’t be ranking up from the exp points that you earn from the matches instead you will have to complete the daily, weekly, and the monthly tasks to acquire the xp points in order to rank up using HALO Infinite’s Battle Pass with over 100 tiers in total.

How Does it Work?

So as you start playing the game, you will have to play 10 placement matches for the game to assess your level and assign you starting rank. The starting will be purely based on how well you perform in those 10 matches.

So once you have completed the placement matches and a rank is assigned to you, only then can you play the ranked matches, and based on your starting rank, the game will be able to match you with the players who are evenly ranked as you for fair competition. And you might also be restricted to use certain weapons and items based on your rank.

Currently, the game has 3 lobbies that you can play at the start of the game Queue, Solo, and Duo. You can play the queue to match with players using keyboard and mouse or the controller. The solo and duos work in pretty much the same way they sound.

What are the Ranks in HALO Infinite

Now that you know the basics of how the ranking system works in HALO infinite, we can move forwards and talk about the total number of ranks in the game that you will have to grind for.

So basically the ranks in HALO Infinite are divided into 6 different categories and each of these rank categories are also divided into 6 ranks or levels, except for the last one.

  • Bronze
  • Silver
  • Gold
  • Platinum
  • Diamond
  • Onyx

HALO Infinite Battle Pass

HALO Infinite isn’t the only FPS multiplayer title jumping to a more robust and grind-y system for the in-game rankings, we recently saw Valorant switching the rank system for ranked arena matches to make things fair for the players to rank up their valorant account. However, it will make the players grind hard in order to climb the ranks quicker.

As for the Battle Pass, HALO Infinite currently offers 2, free and premium Battle Pass that the players can have and both these battle passes don’t expire with time, so players will have plenty to practice and step up their game in order to match the difficulty. So that is how the ranking system works in HALO Infinite and I am sure you are as thrilled as we are to try out this system and come up with ways to rank faster in the game before everybody else. Just go easy on yourself, it might take a bit of getting used to but once you get the hold of it, you will be rocking the stage in no time.

5 free tools that SEO experts should use in 2022

seo tools

Low on a budget but still want to rank higher on Google? Don’t worry we have got you covered. In this article, we will discuss 5 of the free tools that SEO experts should use in 2022. First of all, let us study SEO and why is it important for your website?

What is SEO and why is it important

SEO is search engine optimization and people who are new in the business shall be informed about this small abbreviation that is quite important to note. Many people who now wish to switch from social media to the internet and the World Wide Web shall note that there are some steps that SEO requires to rank a website on top. If you are now moving ahead from just a social page to a website then you need to work upon your website and compete with similar websites that are already present on Google to reach out to your target audience. 

SEO is important because it increases visitors to your website and helps you to reach out to your potential customers. SEO helps you to stand out from the crowd and improves your website’s credibility which brings more business to your doorstep. Without SEO your website will be like a dead body lying on any of Google’s pages of which people will not even be aware. So let us look at some of the best tools that will help SEO experts in 2022 and boost their rankings.

  1. Plagiarism checker

The importance of content will never end but the demand for more content will increase every year. As Google’s algorithms allow unique and fresh content you need to check your content for plagiarism before publishing it on a website. For this, you can use a plagiarism checker which is one of the convenient and simple tools that provides a friendly interface. This tool is available for free on the internet and it is one of the amazing tools one should use to detect their content for duplication. 

This tool scans each document and compares each word with different websites present on the internet to make sure whether it is unique or copied. The results are provided in seconds in the form of a percentage which makes it easy for people to check where they need to make edits for making the content free from plagiarism. 

  • Ahrefs

This is a one-stop solution for all the SEO experts out there because this tool is a software house that provides different types of tools that help SEO experts to complete different steps of SEO using it. It is a free tool that helps with keyword research and backlinking efficiently. It is built with advanced algorithms that provide results for keywords from 171 countries and 10 different search engines. With this, it also gives link-building opportunities to people so that they can link their content with different websites. It is one of the amazing tools that you should not miss out on. 

  • DA PA checkers

To check whether your website is working well and ranks higher on search engines you need to check its da score which will tell you about its quality. The da score is developed by Moz which checks the website on a scale of 1-100. The better the score, the better the website is and if the score is low then the website needs to be improved for better rankings. To check the domain authority of a website a da pa checker tool is the best way to calculate the score. To check da pa you need to paste the URLs in the provided area after which the tool will show the score which will help you decide whether your website needs improvement or not. 

  • Google Analytics

SEO is merely incomplete without Google Analytics. You cannot complete the steps of search engine optimization without using this tool which is quite effective and is available for free for its users. After developing your website, you need to sign up your website for Google analytics where you will be able to track your site. It gives its users access to multiple features that allow users to track and see how their website is performing on the search engine. Google analytics helps people to check the bounce rate and many other things that help them to work on their website. It provides a report which shows conversions and the number of visitors entering the website.

  • Screaming Frog

This tool is quite helpful because it has the power to crawl smaller and larger websites. It is a website crawler that improves SEO by crawling a website instantly. It helps to find broken links, audits a website for ordinary SEO issues, helps in analyzing Meta description and Meta tags, and much more. It is a one-stop solution for all your SEO-related issues so you just need to use this tool to make your website stand out in the crowd. 

Conclusion

2022 will welcome us with immense opportunities and we await the New Year for new possibilities. It is important to make sure that we are updated with all the new algorithms and updates that are often changing that helps in improving the website’s visibility. All the tools that are mentioned above will work wonders for your website.  You will find some more tools that may help you in SEO but using these efficient tools will lessen your burden and these are mostly used by SEO experts who have seen flourishing results. You will find many paid tools on the internet that charge a lot of sum, but all of these tools mentioned above are free of cost and do not ask for any kind of subscriptions or sign-up plans to get started. Although they offer premium plans if you want to enjoy its extra features then you can go for the premium plans which will be fruitful for your website. so get started with these tools now and improve your website’s credibility effectively. 

Mean – Definition & Mean Formula

mean formula

In math, a mean represents the average of a set of numbers and is referred to as a central value. In other words, the mean formula is the average of the values in the set. Aside from the mode and median, the mean is one of the measures of central tendency in statistics. However, all three measures (mean, median, and mode) together define the central value of a set of data or observations.

Formula of Mean = (Sum of all the observations/Total number of observations)

Mean Formula

The basic formula for calculating the mean is based on the data set provided. Each term in the given dataset is considered when calculating the mean. The general formula for mean is the ratio of the sum of all terms to the total number of terms. As a result, we can say;

Mean = Sum of the Data Given/Total Number of Data

To find the arithmetic mean of a set of data, add up (sum) all of the given data (x) and afterward divide the value by the number of values (n). Because is the symbol used to indicate that values should be summed (see Sigma Notation), we get the following formula for the mean (x):

x̄=∑ x/n

Definition of Mean and Mode in Statistics

The mean is simply the average of the given set of values. It refers to the distribution of values in a given data set that is equal. The statistical measure of central tendency recognizes a single value as representative of the entire distribution. It makes every effort to provide an accurate description of the entire data set. It is the one-of-a-kind value that represents the collected data. The three most commonly used measures of central tendency are the mean, median, as well as mode. Mode is that value in the data which comes more frequently.

The mean of a discrete probability distribution of a random variable X equals the sum of all possible values weighted by the probability of that value; that is, it is computed by adding the products of each possible value x of X and its probability P(x).

Want to understand the basic concept of mean as well as median, you can visit the Cuemath website.

Mean of Negative Numbers

So far, we’ve seen examples of finding the mean of positive numbers. But what if the observation list contains negative numbers? Let us illustrate with an example:

Example: Find the mean of the given numbers 9, 6, -3, 2, -7, 1.

Add all the numbers first:

Total: 9+6+(-3)+2+(-7)+1 = 9+6-3+2-7+1 = 8

Divide the total by 6 to obtain the mean.

Mean = 8/6 = 1.33

Mean Symbol (X Bar)

The symbol for the mean of various observations is usually represented by the letter ‘x.’ The bar above the letter x represents the average of x values.

X̄ equals (Sum of values ÷ Number of values)

Types of Mean

In statistics, you will primarily be studying three different types of mean value.

  1. Arithmetic Mean
  2. Geometric Mean
  3. Harmonic Mean

Arithmetic Mean

Arithmetic Mean is defined as the sum among all values divided by the number of values. To calculate, add all of the given numbers together and divide by the number of numbers given.

Example: Find the mean of 3, 5, 9, 5, 7, 2?

Now add up all the given numbers:

3 + 5 + 9 + 5 + 7 + 2 = 31

Now divide by how many numbers are provided in the sequence, that is the number of observations:

316= 5.16

5.16 is the answer.

Geometric Mean

xy is the geometric mean of two numbers, x and y. The geometric mean of three numbers, x, y, and z, is 3xyz.

Geometric Mean =

Harmonic Mean

To average ratios, the harmonic mean is used. The harmonic mean(H.M.) of two given numbers x & y is 2xy (x+y). The harmonic mean of three numbers x, y, and z is 3xyz(xy+xz+yz).

Harmonic Mean = n/(1/x_1 + 1/x_2 + 1/x_3 +……+ 1/x_n )

Amazon New Year Sale offers & Best Deals

amazon sale-featured

amazon sale

A glance at Amazon India’s deals

1. Mobiles & Accessories – Up to 40% off – Buy Now

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Here’s what you need to know about Madden Ultimate Team Game mode

madden ultimate

Since the beginning of the Coronavirus outbreak in 2020, gaming companies have been looking for ways to maximize profits in these uncertain times. EA is one of the few companies with an edge in this department. EA has had exclusive rights to the NFL under their flagship sports game Madden since 2005.

At the start of 2020, EA and the NFL signed an agreement to extend those exclusivity rights into May of 2026. It is also important to note that EA has a provision for a one-year extension if they hit revenue targets. In comes Ultimate Team. Ultimate Team has been EA’s cash cow since they started including this game mode in their sports titles. One could say Madden Ultimate Team is like betting on NFL odds from a sportsbook website.

In the Ultimate Team mode, players acquire cards to set up the best team possible to go against other players online. Sometimes getting the best cards requires spending real money on card packs. With Vegas-like flash, players then get to see what card they got.

Sometimes it’s a bust, but other times it can be a win. The player packs require you to risk getting a great card or a terrible card for the real money you are spending. 

MUT is the Cash Cow

With the Ultimate Team mode raking in more than $1.623 billion for EA in the fiscal year 2021, it doesn’t seem like they would want to do anything to jeopardize this cash cow. As of 2020, the Ultimate Team pack sales have accounted for 29% of EA’s income.

To put this into perspective, MUT netted EA $1.491 billion in the 2020 fiscal year. Since their 2015 fiscal year, Ultimate Team sales numbers have nearly tripled. These numbers are extraordinary and even more so that Ultimate Team didn’t suffer during the pandemic.

Knowing this, the NFL will be happy with the arrangement that they have with EA. But lately, there has been a push to examine if EA is promoting gambling with their packs in Ultimate Team

Legal Issues On the Horizon?

In 2020, a court in the Netherlands ruled that the packs in Ultimate Team modes were illegal. The court ruled that these packs violated the Netherlands’ Betting and Gaming Act. The ruling also subjects EA up to $11.7 million in fines for their violation. EA has appealed this decision and is still awaiting the appeal verdict.

The biggest issue is that Madden and other sports games EA sells with Ultimate Team are geared towards the 13-21 age group. The age of the people playing, combined with the risking of real money on packs, has EA in hot water. With Ultimate Team now making up a whopping 29% of the company’s revenue, they can ill afford to have anything mess up Ultimate Team.

But is Ultimate Team another form of gambling? In a way, yes, it is. Players have the option to buy packs with coins, which is the free in-game currency, or using Madden Points, which you have to buy with real money. The packs work the same whether you use coins or Madden Points.

EA gives players the option to buy a pack that MAY have a player in a certain overall range. The player could get the low-end overall card or get the high-end overall card. In this way, it’s a gamble on what you will get. The game doesn’t show or tell you what cards are inside the pack, leaving parents, courts, and even some players concerned.

With the similarities to gambling, don’t be surprised if there are changes to the MUT model coming in the near future.

What’s the Average Cost to Own a Garage Refrigerator

fridge-featured

A lot of people have an additional refrigerator in their garage. It’s definitely a huge advantage as you can save a lot of money when buying in bulk. Or maybe it’s simply just handy. Imagine if you were doing some garden work in hot summer and didn’t have to pop into your kitchen for a cold drink as it’d come straight from your garage fridge. But does a garage ready refrigerator really save you money? Is it an expensive addition to your household? Let’s find out more about the average costs and check this site to find your perfect model.

fridge2

Bad Habits Die Slowly

Most people who want to have a garage fridge simply move their old one from the kitchen to the garage. It seems like quite a logical thing to do. After all, as long as your old fridge from the kitchen works, why should you do away with it?

If you don’t replace your fridge from the kitchen with a newer model, you could certainly think of buying a used fridge for your garage. It’s the garage and not your kitchen. Hence, a fridge in the garage doesn’t need a lot of features and a simple old one is sufficient.

While these are understandable considerations, there are some points to think about. And they’ve all got to do with energy bills.

Old fridges may die hard, but…

Back in the day, it was rather common to build appliances to last. You could use washing machines for decades and it was rather easy to repair them if they broke down. Radios would also last forever and thus, they’re still in use today. 

If you take good care of your refrigerator, you’ll enjoy it for years to come. However, the older an appliance is, the more thirsty it is for power. Recent models are more energy-efficient and will cost you less.

Kitchen fridges are not well insulated

Your kitchen is usually kept at a rather moderate temperature, which can vary somewhere between 60 and 85 degrees. After all, your kitchen is in your house and your house is insulated. The garage, on the other hand, is usually not. That means that your fridge will have to put up with a much harsher climate in the garage than in your kitchen. And it usually doesn’t result in the best perspective:

The garage can become insanely hot

The hotter it is in the environment of your fridge, the more power it needs to keep its cool temperatures. A fridge does not usually power up all the time, it has sensors that react to temperatures to the outside as well as on the inside. If it notices that the temperatures rise on the inside and it’s hot on the outside, it will draw more power. You could compare it to a motor that has to run on high velocities over a prolonged time. 

Naturally, your utility bill is going to rise. Neither will your kitchen fridge be able to put up with such high temperatures in the long run. It won’t harm the fridge too much in the beginning, but it will break down if you use it in an environment it’s not built for. In the end, you are not only left with high power bills, but also high repair costs.

The garage can become incredibly cold

The same principle of a kitchen fridge in a garage during the warm season applies to it during cold spells. If it freezes outside, your kitchen fridge may not require more power. It’s likely to stop its operation as it thinks it’s cold enough. This leads to your fridge shutting down and your contents can freeze just because of such low temperatures. If it’s got a freezer section, your food will thaw.

fridge3

Energy Efficiency Is Key

As you can already assume, it is of utmost importance that your fridge is energy-efficient. A typical fridge for the kitchen won’t do the job yet alone for its lack of better insulation. So what could you do? You actually do have two options:

  1. There are kits to turn your kitchen fridge into a garage ready refrigerator. Some people also install it in a super-insulated cabinet. The downside is only that if you’re using an old fridge, you may benefit from better insulation, but it’ll still require more power for being older.
  1. Buy a garage ready refrigerator. There are different types of refrigerators for particular purposes. A kitchen fridge is built to be used in a kitchen, an outdoor fridge is made to be weatherproof to use outdoors when camping in summer. And then there are garage ready refrigerators with better insulation and better sensors to operate smoothly despite extreme temperature fluctuations. 

fridge4

So How Much Does It Cost to Run a Garage Ready Refrigerator?

If you’re looking for a garage ready refrigerator, make sure it’s at the top of its league in regards to energy efficiency. Though it’s got better insulation and more sophisticated sensors, its energy efficiency also rises with each new model. 

On average, you can expect about $ 5 for your power bill to run a garage ready refrigerator per month. That’s not much at all. In comparison, you’ll pay about double for an old fridge you’re repurposing for your garage – not yet including repair costs, which you will doubtlessly face. 

Parting Words

For more detailed information, you should check how many kilowatt-hours a garage ready refrigerator uses. You can find this info in each technical detail of online shops that sell such models. The kilowatt-hours indicate its average annual use. The lower the values are, the less power it’ll need. Once you’ve got the kilowatt-hours, you can use these to calculate the utility costs with the prices given by your power supplier. 

Additionally, look out for yellow ‘Energy Guide’ stickers on your garage fridge. Each manufacturer is required to attach one of these stickers to each appliance they sell.

Google improves on-device speech recognition with VoiceFilter-Lite

Google VoiceFilter-Lite
Image Courtesy: Google Blog

We use voice commands almost every day asking Google Assistant, Siri, and others to get a few things done. Voice assistive technologies are based on accurate speech recognition technology to provide the correct response to the user’s query. However, one of the major problems with these technologies is the overlapping of speech. It presents itself as a great challenge to filter out overlapping speech and that is where Google’s 2018 VoiceFilter system comes to the rescue.

VoiceFilter has proven its mantle in improving source to distortion ratio (SDR). However, on-demand streaming speech recognition technology requires inputs like CPU, model size, memory limitations, among others. This is where the latest VoiceFilter-Lite from Google comes into play. It has shown significant improvement in on-device speech recognition when subjected to overlapping speech. It does so with the assistant of the enrolled voice of the select speaker. VoiceFilter-Lite was able to return a 25.1 percent improvement towards word error rate (WER) when subjected to overlapping speech.

VoiceFilter-Lite: Improving on-device speech recognition

The new VoiceFilter-Lite takes the input as a speech recognition model. It further enhances the features that treat the unwanted components from a speech that doesn’t belong to the target speaker. It then runs it through optimizations on a number of runtime operations and network topologies. The model runs the data through TensorFlow Lite towards quantizing the neural network. The resulting model size is around 2.2MB which is suitable for on-device applications.

VoiceFilter-Lite model architecture
Image Courtesy: Google Blog

The model architecture uses filterbanks with a dump of noisy speech and applies a vector to the target speaker for identification. It further uses neural networks to find the difference between a set of clean speech filterbanks and the enhanced filterbanks to get the speech right.

The best thing about VoiceFilter-Lite is its plug-and-play and it can be trained and upgraded separately from the existing recognition model that eliminates complexities when deploying it.

Apparently, two types of errors are recorded whilst working upon improving speech recognition. Under-suppression occurs when the system fails to carve out noisy components in a speech (signal). On the other hand, over-suppression occurs when the system carves out so much of a signal that it fails to preserve useful parts of a signal which results in loss of words and so on.

Under-Supression & over-suppression
Image Courtesy: Google Blog

Speech recognition models are already robust on fixing under-suppression while VoiceFilter-Lite uses two approaches to get rid of over-suppression as well.

VoiceFilter-Lite is promising for on-device speech applications. It is limited to the English language only. However, the researchers are willing to train the model in other languages in the later run. Training the system to improve speech recognition even further is the next goal.