The steps to extract audio from video file are easy. Open QuickTime in your Mac and load the video file. If it is playing, you can pause or stop it. The video doesn’t need to be playing to extract the audio file. In the Menu bar, go to “File -> Export -> Audio only.” Save the file in your preferred location. The exported audio file will be in “.m4a” format (audio for mp4)....

Note: press Win + R on your keyboard to open the Run dialog box and enter any of the below commands to access the respective tool. List of Run Commands services.msc – When you enter “services.msc” and press the Enter button, it will open the Windows Services app where you can easily start, stop and configure other settings for each and every service individually. It’s quite helpful when you want to toggle a service....

Installation On Ubuntu, you can install via the following PPA: You might also want to install the Marlin plugins for Dropbox and UbuntuOne Once installed, you can right click on any folder and select “Open with Marlin File Manager”. Usage The first impression of opening Marlin is that: it is fast. Usually when I open Nautilus, it will take about 3 -5 seconds, even on a high-end PC, to open. On the other hand, Marlin opens up instantly....

1. Betty Betty is a command-line based virtual assistant. You can easily carry out various commands with Betty simply just by typing in a command which asks the question you want answered. Commands are entered in natural language, which is a big plus since this can help you if you don’t remember a particular command. Installing Betty To install Betty, first run the following command: After completing the installation, you can go ahead and start having fun with Betty....

Admit it, it’s been a long time since you only used your smartphone for placing and receiving phone calls. We use it for texting, social media, as a camera, for listening to music, etc. We asked our writers, “Other than as an actual phone, what do you normally use your smartphone for?” Our Opinion Robert reports that he uses his smartphone for reading the news, listening to podcasts, as an interval training time, and for “ritually Googling ‘trump’ upon waking up in the morning to see what mad things he’s done/said/tweeted during the night....

What do you see as the future of brick-and-mortar stores vs. online retail in 2019? Our Opinion Phil sees that future as “pretty bleak, at least in the short term.” He believes many stores will morph into warehouses with a walk-in business as well. If you’re local, you walk in, and if you’re not, they’ll ship your purchases to you. “It’s the way most businesses survive in the face of new models....

Who’s Going To Be Using 3D Printers? In all likelihood, 3D printers will continue to find new and interesting applications. However, 3D printing becomes highly useful especially in the medical field. They provide a cheap way to reproduce special casts, hip replacements, and other prosthetics. Of course, hospitals aren’t the only ones interested in these critters. Space engineers find 3D printing to be highly useful in their fields as well! They believe that 3D printing might be just the thing they need to colonize other celestial worlds....

What Is Firmware? Let’s spill the beans right away – firmware IS software. According to Wikipedia, firmware is “a type of computer program that provides the low-level control for the device’s specific hardware.” Almost any of today’s devices, be it a computer, phone, stereo, car, or a washing machine, comes from the manufacturer with some form of firmware. For simpler devices, firmware is all they need in order to function. For more advanced devices, e....

Apple Music Sing is a new feature for Apple Music subscribers only and it’s launching worldwide later this month for iPhone, iPad and the new Apple TV 4K. All in all it sounds perfect for your Christmas or New Year’s Eve party. Apple is promising the feature will offer real-time lyrics with adjustable vocal levels, easily distinguished background vocals, and a duet mode that’ll let you bust out Starship’s Nothing’s Gonna Stop Us with a partner of your choice....

The Problem with sudo Over the years, sudo has become the de facto privilege escalation program in the UNIX world. However, this means that sudo has to cater to every use-case for every person that is using a UNIX-like machine. This approach in program development made sudo an unwieldy program that is hard to understand and hard to use. For example, to modify sudo’s behavior, you need to run a command called visudo....

How Does the Log4Shell Vulnerability Work? On a fundamental level, the vulnerability is caused by improper input validation. This happens when software doesn’t properly validate the data it receives, leading to possible vulnerabilities, since incorrectly validated input can be used to make the program perform actions it’s not supposed to. Log4Shell specifically takes advantage of requests Log4j sends to servers, utilizing LDAP and JNDI. By taking advantage of these requests, an attacker can execute code on any vulnerable system, which can lead to a malicious actor taking complete control of the system and having the ability to install ransomware or steal data....

Why? Upon hearing about 5G, any marginally-savvy individual might ask, “Why does anyone want to move forward another generation when 4G isn’t properly implemented in much of the developed world?” There are several reasons for this, not the least of which is the fact that we’re running out of radio spectrum (see the link I gave you above). We need a new network that will not experience the same caveats that 4G in this department....

What is the sudoers file? The sudoers file is a text file that you can find in the “/etc” directory (find out more about Linux directory here). Its main purpose is to control how sudo works on your machine and determine which users and groups have the ability to run with superuser permission. In addition, the sudoers file can also allow a specific user to run commands as another user in the system....

The Data Gartner published an analysis for the final quarter of 2017, the time of the year when people go on enough holiday shopping frenzies to empty stocks everywhere. Compared to 2016’s final quarter, the following year saw a decline of 5.6 percent. This is the first-ever decline in sales recorded by Gartner in the smartphone industry. This may not seem like much, but when you’re expecting hundreds of millions of sales, the losses could amount to tens of millions of dollars....

Understanding The Human Eye And Frames According to a book called “Restoration of Motion Picture Film”, the human eye can process up to ten or twelve images per second. The amount of images displayed on a screen every second is known as a video’s frame rate, and it’s measured in frames per second. In conclusion, that means that the “frame rate” of the human eye is roughly 10 frames per second, right?...

The hardest part about using a service where there is no defined way to use it, is making a system of your own. While there are features built into Evernote that will make it easier to keep your information sorted, you will still want to keep it pretty organized. Here are some ways that business owners can make use of Evernote. 1. Vendors You can use Evernote to keep the contact info and terms for each vendor you deal with for easy access anywhere you may need it....

At this point you ask yourself, “Is there a better alternative?” Yes, there is. Three of them in fact, and they’re all free! 1. FreeCommander One of the most fundamental things missing in the native Windows Explorer is a tabbed interface. Without it you need to open new instances of Windows Explorer if you want to do different things in it at the same time or quickly glance between different folders....

In this post, we focus on JavaScript Object Notation (JSON), specifically beautifiers to help turn minified code into something beautiful to look at once again. Why You’d Want to Beautify Your JSON Data One major aspect of modern programming is to make your code readable to other humans. This makes a lot of sense, given the process of turning high-level code into low-level machine instructions means your well-formatted code takes a turn for the worst....

In Gnome based system, there are several panel menu applets that you can use. Some of them are great eye candy for spicing up your desktop while others are small and fast and aim to improve your productivity. Let’s see what choices do you have: 1. Gnomenu If you are looking for a pretty menu to spice up your desktop, then GnoMenu is the one to go for. This application menu supports themes, regardless you are using a composited or non-composited desktop....

In this article we’ll go over each app, rank them and talk about what makes them great apps. Each one is great in its own unique way, but which one is best for you? 1. Airdroid Airdroid: A remote access and wireless file-transferring tool. The app works by asking the user to sign into an account, then by going to airdroid.com on a computer. Once there, Airdroid creates a virtual desktop with the abilities of accessing contacts, downloading apps from the phone to PC, sending text messages remotely, and transfering files back and forth....