Thursday 9 December 2021

Stereo vs Mono Sound

Stereo vs Mono Sound

When it comes to the discussion of Stereo vs Mono, the first aspect that differs them is the number of channels. Monophonic and stereophonic sound use different channels to record and playback audio. A single audio channel is used for Mono signals to record and playback. But for stereo sounds, two audio channels are used for recording and playback purposes. Stereo sounds can generate the perception of width, but it is not possible for mono sounds.

What is Stereo sound?

Stereophonic sound is the creation of two or more independent audio channels. It is designed in such a way that it seems the sound comes from different directions.

What is the Mono sound?

Monophonic sound uses audio in a single channel, and it is centered in the "sound field."

Stereo vs Mono Difference:

Audio Files:

A stereo system allows you to use two speakers. It comes with audio channels like stereo MP3 and WAV files. MP3 contains the information of the left channel, and the WAV files contain data of the right channel. These files control both speakers and ask when to push and pull air.

When you see a digital audio workstation (DAW), look at the waveform of a stereo audio file. You can see two waveforms display their audio channels. But the Mono files have merely a single audio channel.

Playback:

Stereo systems can generate the impression of sound source localization. It indicates users' capability to locate the position of a sound source within a space.

For instance, if any dog barks, you generally can detect the direction of the sound and the distance of its coming. People are capable of localizing sounds with decent accuracy.

Our brain uses typical tricks to use standard concepts to localize sounds. For example, people can detect the sound timing differences between sounds for your left and right ear, sound wave pressure levels, sound wave frequency, dynamic range, and reverberation amount.

Our brain depends on the sound wave timing differences that are useful for deciphering a sound's left/right positioning. When a Sound source is near your left ear, the sound comes first to your left ear. Then, it reaches your right ear. The difference in timing is minimal, but still, it is useful to localize the sound.

If you want, you can mirror the method with the help of a second speaker. Hence, you are required to feed both speakers at the same signal. In this case, it seems to you that your sound source comes in front of you.

Width (X-axis) is a dimension that you can perceive with the help of a stereo system. Other dimensions also follow height (Y-axis) and depth (Z-axis). The collection of these three dimensions forms a 3-D space. It is known as a stereo image. 

Playback System

Ensure that you are hearing any sound or audio taking the help of a pair of headphones or a stereo playback system. Whether you select a stereo playback system, make sure that you keep your head position in an equilateral triangle with the speakers. Hence, the speakers must present at an angle of 45° toward you. Thus, you can make sure that you can perceive the stereo image.

With the help of frequency, you can detect the height where the sound is perceived within a stereo field. If you have high-frequency sounds, you find these localizing above low-frequency sounds.

The depth relies on the relative sound level, dynamic range, and reverberation amount. Sounds having a weak level and less dynamic range usually appear toward the back of the stereo field.

If you use Mono systems, you can only find them using one speaker. These can generate a two-dimensional image of height and depth. You must have two speakers for making the directional timing differences.

Recording:

If you use one Microphone to record a sound source, you can capture a single channel of audio. You can use a single speaker or two to playback a mono recording.

Mono sounds in which you playback with the help of a stereo system, will playback in dual-mono. You need to duplicate the single audio channel and send the signal to both the left and right speakers.

If you are willing to record stereo sounds, you must take the help of two microphones. At the same time, you will record a stereo sound; one of the microphone recordings needs to be panned to the left side whereas the other one to the right side. There are multiple handheld recorders where you can record sound in Stereo, even capture sound using a pair of built-in microphones for recording.

Compatibility:

The single audio file supports Phonograph cylinders, AM radio, FM radio stations, etc. Besides, it is compatible with Disc records, such as 78 rpm and 16⅔, 33⅓, and 45 rpm microgroove. Both these files are used in MiniDisc, compact audio cassette, VCR formats (NICAM Stereo), and TV (NICAM Stereo). These support FM radio in most cases and AM radio broadcasting in rare cases. However, people don't use this in 8-track tape and audio CDs.

Mono Vs Stereo Applications:

People use Mono sound in radiotelephone communications, telephone networks, public address systems, hearing aids. Besides, radio stations also use it for talk shows and conversations. When it comes to Stereo sound, you can find its use in hearing songs, theaters, and radio stations dedicated to music, FM broadcasting, and Digital Audio Broadcasting (DAB).

Stereo vs Mono- Which one is better?

You have to choose according to your need and preference. If you are willing to see a movie with lots of music and environmental sounds, it is better to use Stereo sound. When you use this, you have the feeling like you are in the movie.

But sometimes, you may want to wear only one earbud. In this case, you should choose the other one. This sound can provide the same experience as the whole music, even if you are wearing one earbud.

Conclusion:

Mono sound is used while merely one channel is used for converting a signal to a sound. But the other sound comes while many channels convert many signals to sounds. It entirely depends on you which sound system you are willing to choose.

Frequently Asked Questions:

  • Q. Is it better to record Mono or Stereo?

Whether you are willing to record a vocalist, you need to select Mono as your choice. However, Stereo is better when you record two vocalists or more. You can use this when you are willing to record in a room with unique acoustics. Using Mono, you can get a strong, clear, and upfront sound.

  • Q. Is Stereo better than Mono?

One channel is used for Mono, whereas many channels are used for the other one. It is upon you which one you are willing to use.

  • Q. Is Mono audio good for music?

As you know that the sound is based on one channel. Therefore, it is better to use because you will hear the sound in one direction. The song is available in a very shallow and plain 2D form.

Wednesday 8 December 2021

How to Make an Operating System from Scratch?

How to Make an Operating System from Scratch

Do you want to make your OS from scratch? It is not mandatory to have knowledge of coding for all. You can create an operating system even though you don't know C or C++ coding. The operating system has the responsibility for adjusting the PC hardware. When you write an OS from scratch, you have to have a strong command of computer science. It should be of a programming language such as C or C++. 

Guide to Build an Operating System From Scratch

Learning the Basics:

  • There should have a little common knowledge of computer science. So, in this case, you can learn introductory Computer Science courses. You should know that to make an operating system. Besides, it needs a strong understanding of algorithms, data structures, computer hardware, and resource management. In this case, many people have degrees, but you do not have to do so. Learn s course for free to know the process of writing this.
  • If possible, try to learn Python, which is a high-level programming language. However, after getting a solid foundational understanding of computer science, you need to learn C and/or C++. You have to master any specific language when you know about computer science. Otherwise, it is impossible to code an operating system without writing solid applications. Beginners are requested to complete their course to C from any site. After completing the course, take the next one available in the list of courses: C Programming: Language Foundations. You should learn Modular Programming and Memory Management and Pointers and Memory Management.
  • If you want, you may try to know about an assembly language. These low-level languages come with a design for communicating with various processors. But different processors use different assemblies like x86 assembly Language for Intel, AMD, VIA, and others. That's why it is essential to know about the version of the processor you are coding. You can get knowledge from the Art of Assembly Language if you want. The book can be got both online and offline. If necessary, then research on the web. You can find the manuals for processor architecture with the help of a Google search ("Intel Manuals," "ARM manuals," etc.).
  • By going through our tutorial, you can understand how to create the operating system. You can take the help of Bare Bones, using which you can write your first simple 32-bit kernel. When this process is finished, you must use Meaty Skeleton to build the structure of the operating system. If you think, take the help of Linux from Scratch. Using the online book, you can make your Linux operating system. You should know that the operating systems which are from 0 to 1 are free books.
  • You need to decide first the purpose for which you want to make the OS. It is essential to know the design that you prefer. Sometimes, you may want to make your PC offer only a specific look. It would be best to consider multiple things before the beginning of the code. The first thing you need to consider is creating the OS with a team of other programmers. If you have a team of developers, you can make the OS quickly. You are merely required to include the project's target, plan, and questions in your public repository.

Building Your Operating System:

  • In this part, your first task should be to select a development environment. It is the place where you have to code the new OS. Usually, people like to use Windows or a flavor of UNIX. However, you can use anything according to your preferences. If necessary, then try to install a UNIX environment. Cygwin or MinGW is an example of this. Ensure that the environment you use comes with a GCC (the Gnu compiler). People who use windows need to install this in Cygwin or MinGW.

Whether you are willing to manipulate object files, you can use Binutils, a collection of tools. If you use Windows, then install this in Cygwin.

However, people use Vim and emacs in UNIX environments. If you are using Windows, you can use Notepad also. If you prefer, then check the Notepad++ out. People can use Perl and/or Python for string manipulation.

  • In this case, you should set a version control system. When you are going to make an OS, you have to write plenty of lines of code.
  • Sometimes, you might not be capable of creating the operating system yourself. Hence, you are required to take the help of a bootloader like Grand Unified Bootloader (GRUB). However, if you have the skill, try to code for a bootloader.
  • You have to select a kernel design that is the core of OS. It is the one that offers an interface between the hardware of the PC and you. Two different types of kernels are available— monolithic kernels and microkernels. In the Monolithic kernel, you can see all the services, whereas, in microkernels, you can see a small kernel with user daemons implementing services. Usually, monolithic ones work quickly, whereas microkernels come with improved fault isolation and reliability.
  • Try to learn small things first, like how to show text, etc. Then, you should move on to the big stuff like memory management and multitasking. If you are willing, try to create a simple 16-bit Operating System rather than taking a big leap. It may not be done entirely if you want a complete system. You should try to build operating systems that are bootable. After that, you can go to the stuff.
  • Use a virtual machine in this case for testing the new operating system. As a result, you are not required to reboot the PC every time, or you don't need to share files from your development computer to the test machine. Take the help of VMWare that is suitable for both Windows and Linux. Take a look at the potential deadlocks and other bugs.
  • Now, your task is to release the option "release candidate." Just upload the code you have tested to the public repository. Users can test the code at any time and report this back if they find any issue on their devices.
  • Finally, your job is to connect with the other OS developers. You can find an entire community of OS developers on the web.

Monday 11 October 2021

Keynote: New Features

Apple has launched a few new features to update its iWork suite of productivity applications. As a result, Apple users are capable of using documents with ease. Pages will showcase pictures and text in a single-column flow. Thus, users can view documents more easily as well as edit them also. Besides, the latest tools in the keynote are capable of displaying the live camera view of the user. This feature of Apple assists in making presentations more engaging. It can be more collaborative also with plenty of user controls. Numbers come with pivot tables. These are capable of bringing strong data analytics capabilities.

Bob Borchers said that people prefer to use Keynote, Pages, and Numbers. It doesn't matter if they are in their home, office, or any other place. The strong features, easy-to-use capability help th deliver awesome experiences across mobile devices like iPhone, iPad, and Mac. Bob Borchers is the vice president of Apple of Worldwide Product Marketing. 

Nowadays, people can make additional personal and compelling presentations with the help of the latest productivity and collaboration features. Thus, people can easily work with documents on their mobiles. Apple is going to offer full-featured pivot tables for the very first time.

A New Pages Experience Optimized for iPhone:

We generally read documents on iPhone especially compared to any other device. Nowadays, pages deliver seamless performance in reading as well as editing documents. Users can increase the size of the text and thus they can enhance the quality of readability, photos, and drawings. Now you can scroll the tables horizontally. This recent update from Apple allows the Screen view feature to showcase text, pictures, and many others in a single column.

You are capable of using the Screen View for all different word processing documents. Users are not required to set up additionally. You can access the editing tools in Pages. Besides, you can deactivate the Screen view feature whenever you wish. Thus, it helps you to see the page layout of your document before printing or publishing.

Availability:

Recent users of iPhone, iPad and Mac can get Keynote, Pages, and Numbers free in these models. As soon as the update is available, it can be downloaded from the App Store and Mac App Store.

New Ways to Present in Keynote:

Now, keynote presentations become more engaging with the help of strong new tools. The front-facing camera is now available on models like iPhone, iPad, and Mac. Therefore, users of these models can use them for adding live video to the presentations directly. If you are going to attend any lecture, then this mobile feature is going to be very useful. People who represent their presentations via remote through video conferencing applications must get benefits from the feature.

People can use masks, frames, drop shadows, and reflections on any live object. Thus, they can make the object more elegant. If you are a Mac user, then you are capable of using plenty of external cameras. These will improve your live video experience for sure. Using the feature, you can even showcase the attached iPhone or iPads display. People generally use this feature for live demos on their slides.

A new multi-presenter option is now available in these models. Therefore, it enables you to have control over even a shared slideshow from your model. It doesn't matter whether you represent your project remotely or stay in a similar room. When you complete using the feature to your slide, you need to go back to the host. If you wish, you can allow your co-presenter to take over the slide.

Powerful, Easy-to-Use Pivot Tables with Numbers:

This update helps to display information with excellent graphics combination and offers an intuitive interface. As a user, you should always use Numbers to get the most out of the information. The pivot tables allow you to summarize information, group them and rearrange thereafter. Use charts as well as share the pivot information to visualize the tables.

Keynote, Pages, and Numbers are compatible with all the latest translation features of iPadOS 15, iOS 15, macOS Monterey, etc. In addition, a chart is available recently called a Radar chart. With the help of this chart, you can visually compare it with a lot of variables. Thus, users can easily differentiate them. Using the new filter options, you can look for duplicate entries. Besides, you can use it to find any particular value in the document.

Sunday 26 September 2021

New Android Features Coming Soon

New Android Features  Coming Soon

Using Android, people can always look forward to getting improved performance throughout the year. Android mobiles come with new excellent features that make the life of people very easy. We have given here a few new Android features.

New Android Features Coming This Season

  • Enhanced Password Input and Gaze Detection:

This new feature is perfect for those who have motor disabilities. Using the voice access feature, you can navigate your phone and app with just your voice.

Gaze detection is useful when you want Voice Access to work while merely you will look at the display. As a result, it allows you to talk to your friends and use your mobile also.

Voice Access comes with improved Password input also. While you recognize any password field, it asks you to type letters, numbers, and symbols.

  • Adjusting Regular Tasks Using Reminders From Assistant: 

Now, you can manage everyday tasks easily with the help of this feature. It enables you to adjust all reminders in one place. You merely have to say, “Hey Google, open my reminders." Here, users can see useful suggestions to recur reminders. With only a tap, you are capable of activating reminders.

The feature allows you to use your voice for making as well as automating the to-dos. Suppose you say, “Hey Google, remind me to water the plants every morning.” After setting this, Google must inform you at the correct time across your devices.

  • Add Images and Videos To A Passcode-Protected Area:

There is a Locked Folder in Google Photos that offers users a passcode-protected space. Here, users can keep their essential images, and videos well protected.

  • Earthquake Alerts System: 

The world’s largest earthquake detection network is now available for Android users to help them in emergency times. This free system notifies people in affected areas seconds before an earthquake is going to hit. As a result, people can take safety in advance. The Android Earthquake Alerts System is now available in New Zealand and Greece.

  • Express with Gboard:

Now, you are capable of giving your experience with the help of new additions to Emoji Kitchen on Gboard. Plenty of stickers over 1,500 are available now. Besides, the Gboard helps you to communicate quickly and more fluidly for making messages more fun.

Firstly, while you copy any text, it contains plenty of information like URLs, emails, Phone numbers, etc. The Gboard can extract the copy and separate them into different pasting options. Therefore, you can select the vital part from the text. Secondly, while opening a messaging app after you take a screenshot, Gboard allows you to share the screenshot. Android 11 or newer models come with the power of the machine learning feature. It helps to complete your sentence quickly.

  • Control Using Facial Gestures:

Two new excellent features available in Android are— Camera Switches and Project Activate. These accessibility features allow you to make facial gestures. The Camera Switches feature is available within the Android Accessibility Suite. It enables you to use your front-facing camera as a switch for navigation. This adaptive tool is capable of replacing a keyboard, mouse, etc.

With the help of the Project Activate feature, users can communicate and express themselves easily. Facial gestures and eye movements are useful for activating preset actions.

  • Control TV with Your Phone:

There is a built-in remote-control feature in your Android phone. It enables you to switch on your television, begin your favorite show directly from mobile. The keyboard helps to type complicated passwords, movie names, or search terms. Just include the remote tile to quick settings on your mobile or you can go to the Google TV app also.

We hope you will enjoy these new features a lot.

Thursday 23 September 2021

WatchOS 8 is Available ToDay

WatchOS 8 is Available ToDay

People can get this watchOS 8 model available in the market for the Apple Watch. But Apple has not given any release date of the model yet, however the Apple Watch Series 7 is going to release on September 14.

In this latest software update, you can see a new Mindfulness app, sleep app, Fitness Plus updates, etc. It may seem that it doesn't come with any huge changes. So, for confirmation, you can check out the features below.

There is good news for the old Apple Watch owners. It is that the model is compatible with all the similar devices that the old model watchOS 7 supported in the previous year. As a result, the Apple Watch 3 and its latest versions enable users to download the operating system.

Apple has announced to release their updates to their iPad, iPhone, and Apple Watch line on September 14.

WatchOS 8 Release Date:

After the confirmation of the event on 14 September, the watchOS 8 model update was landed on September 20. Here, we have given its features, all the latest updates of the model, etc.

WatchOS 8 Supported Devices:

This watchOS 8 update supports all types of devices from the Apple Watch 3 and its latest versions. As the compatibility list of last year is similar to this year also, you can run the latest software easily.

Whether you are willing to upgrade to watchOS 8, then you will require an iPhone that's running iOS 15. Hence, you only are required to pair it with at least an iPhone 6S.

Features Of The Model:

It comes with a lot of smaller features that let you know how you use your Apple Watches normally. There wasn't any monumental upgrade previously. But a few quality of life improvements exist.

Wallet- Digital ID:

There is a wallet app available in this model. It comes with plenty of ways to interact with different things and places. A few of them have only Apple Watch 6 and their Ultra Wideband tech features. For example, it can unlock your car. This feature was unveiled first at WWDC 2020. Then, it began its journey from the driver's seat in each Apple press release.

In most cases, the Apple Watches are capable of offering benefits such as delivering additional digital keys to Wallet for their home, office, and hotel; use the wearables for making them unlocked, etc.

Most surprisingly, people who participate in the US states can include their driver's license or state ID in the Wallet. A few TSA checkpoints are going to begin accepting these digital IDs. You merely need to include them in the iOS Wallet app. Thus, you are capable of displaying them easily on the Apple Watch.

New Mindfulness App and Sleep Tracking:

It includes a Breathe app incorporated into the new Mindfulness app. Besides, the app has also been incorporated with the latest activity, known as Reflect. It allows you to walk through a variety of mindful sessions that are reflecting on previous events.

The Sleep tracking feature of the model enables you to monitor a new metric that we know as respiratory rate. With the help of this feature, you can measure breaths per minute. Besides, all the information fed into the Health app. It helps you to track the procedure of shifting health metrics over longer periods.

In the previous version of watchOS, i.e. watchOS 7, the sleep tracking feature lets them know about the time they spend in bed and asleep. It is all users could know from the previous version. They were unable to see advanced data about their overnight disturbances or sleep stages.

In this latest watchOS 8 model, Apple is going to develop a sleep app with metrics. Now, users get to know about their quality of sleep. The Apple watch helps to track your respiratory rate when you sleep. As our sleeping respiratory rate should be consistent, therefore any changes mean shifting in overall wellness.

Using a trend, you can identify your respiratory rate. To know more details about this, go to the Health app on your iPhone.

Workout App and Apple Fitness Plus:

It has a Workout app that comes with the two latest workout activities that are Tai Chi and Pilates. Each of these is a very relaxed and mindful exercise that is suitable for a yoga workout. These features come with custom-built heart rate and motion algorithms also.

In the Apple Fitness Plus watchOS app, you can see the new functionality. Picture in Picture support as well as other filtering options are a few examples of it. The watch allows you to transfer workouts seamlessly between devices. The feature first pauses exercise on one and thereafter begins it on another.

Fitness Plus includes additional workouts taking help from expert Jeanette Jenkins. It adds a new musical Artist Spotlight Series with the help of Lady Gaga, Jennifer Lopez, Keith Urban, and Alicia Keys.

Photos and Portrait Watch Faces:

The Photo application comes with a new design that allows you to navigate collections. Besides, the Memories and Featured images generally sync to the Apple Watch from the iOS application. It has the latest Portraits watch face. With the help of this feature, you can turn all your Portrait-mode images into watch faces. This model also shows you the time or complications that are behind the person in the Portrait.

Messages and GIF Responses:

Messages come with more granular controls such as it twists the crown to move the cursor. Besides, it has the capability of searching and replying with GIFs. A new Contacts app is available in this new watchOS model. It helps users to browse, edit, and share contacts from this Apple watch.

There are a few new features also available in the Apple Watch features such as Intercom. It is an upgrade for the Home app that enables you to see who is at the door using features like a Live video feed.

This latest watchOS 8 model comes with a new Focus feature that you can see in iOS also. When you set Focus on your iPhone, it will carry over to the Apple Watch. Thus, you are capable of setting the notification settings to prioritize work, fitness, sleep, or do not disturb mode.

Better Messaging Tools:

While going to send a message, you can take the help of the scribble tool, the Emoji selector, or the dictation option. All these three options are available from the same screen. Besides, while you are going to dictate any message, if an error occurs in the transcription, then you can easily choose the word. Then, you should take help from Digital Crown for making corrections.

Users can share a GIF when they choose the magnifying glass icon. It is as similar as you can see on the iPhone. You can choose GIFs from the trending list. If necessary, then you can look for the GIF also which you prefer.

Flexibility for the Apple Watch Cyclists:

If you are a cyclist, then you will get benefits while using the model WatchOS 8. For example, it offers auto workout detection that is useful for bike riders. Besides, there is an auto-pause and resume option that doesn't count your workout time while you don't ride.

Apart from this, there is a fall detection available which is perfect for bike rides. Therefore, when the watch detects any type of tumble, it will call the emergency services automatically and notify emergency contacts. Apple said that there will be an update to WatchOS 8 later this year. This update will be available in Series 4 and later versions.

There are other workout features also such as audible feedback cues. Users can hear workout milestones like while you will close your activity rings.

You should know that the Apple Watch Series 6 model is going to be compatible with ultra-wideband, or UWB that is for car keys. It helps to unlock the vehicle and begin it remotely. You don't have to touch or tap anything on the watch. It usually relies on the vehicle manufacturer and is going to roll out later this year.

Additional Features of WatchOS 8:

  • There are plenty of timers that come with options for labeling timers using Siri. 
  • Extra apps in this model are compatible with the always-on display like Maps, Timers, and Phones. 
  • The Photos app allows you to surface the memories as well as featured photos. Additionally, it allows you to share images directly from the Watch with the help of Messages or the Mail app. 
  • With the help of the Home app, you can easily control accessories by room. Then, you are capable of transferring broadcast intercom messages from your wrist.

FAQs:

  • What watches will get watchOS 8?

The OS of the newest version of the Apple Watch, i.e. watchOS 8, is designed to run on modern Apple Watch models. This model supports the Apple Watch Series 3 and later.

  • Is watchOS 8 out?

The model was previewed at WWDC in June. But now it is delayed in its release.

  • How can you download watchOS 8?

To download the watchOS 8, first, navigate to the General option. Then, you are required to go to the Software update on the Watch app. If necessary, then you can download its update from your Apple Watch. But it is when you connect it to WiFi.