Showing posts with label Tutorials. Show all posts
Showing posts with label Tutorials. Show all posts

Things to Consider When Installing High-End Hi-Fi System

Where you are going to install your high-end hi-fi system is important. So choose your room or rather your ‘listening room’ from one of the rooms in your home. The size of the room will definitely affect the sound of your speakers. Here are some things you need to consider when choosing your ‘listening room’.

1. Size matters – You listening room should not be too small or too big for your speakers. If the speakers are small it will not fill the room properly with the sound and if they are too large there will be too much sound in the room.

2. Right dimensions – Choose a room where the dimensions, height, length and width are not the same. If the dimensions are the same then the sound waves will bounce off the roof and walls and converge in the center of the room at the same time. This will cause distortions in the sound, especially with the bass sounds.

3. Placing your speakers – Place your speakers in the optimal position in your room in regards to listening position and room boundaries. The right position will depend on the speakers but you will have to work with trial and error to get the right position for your listening room.

4. Room Furnishings – You will need to check what furnishing is in the room as this will affect the sound. Soft furnishing and carpets will reduce the bass and echo but too much carpets in the room will diminish the mid-band and treble.

5. Walls – Solid walls with pictures or wall ornaments will help in breaking up the standing waves and help in creating a better sound.

6. Loose items – If there are loose items in the room, it will vibrate and cause unpleasant sounds. So try to avoid keeping loose items in the listening room.

7. Comfort – One of the most important aspects of your listening room should be its comfort. Listening to music in a comfortable atmosphere is pleasurable, so make sure your room is comfortable.

Speakers
Positioning the Speakers

After making sure your listening room is all set up correctly, you will need to start positioning your speakers. Taking some time to properly position your hi-fi speakers will help get your sound right. Here are some tips you can use.

1. Distance between Speakers – Place your speakers at least 1.5 meters away from each other (let’s call this D1); this of course depends on the size of the speakers. Depending on the size and type of speakers you have, you might need to have more space between them. D1 is the distance between the two speakers.

2. Listening Distance – Draw an imaginary horizontal line between the two speakers, and draw another imaginary vertical line from the horizontal line – D1 to your listening position D2 (like a ‘T’). The distance from the center of the horizontal line D1 to your listening position D2 should not be less than the distance between your two speakers.

3. Toed In– Speakers are normally designed to be placed in a ‘toed in” position. Place your speakers in an angle where they face toward your listening position. This is very important and can only be found by trial and error, so take some time and work with it till you get the best sound. Draw an imaginary line from each speaker and see if it converges in front of your listening position.

Positioning your Hi-Fi

Though properly positioning your hi-fi system is not as critical as positioning your speakers, yet you will need to take some care where you set it up. Basically you can place your hi-fi components anywhere in the room, provided you have sufficient cable length to connect them to the speakers. However, it’s not as simple as it sounds.

Cable Length – The longer the cables the lower will be the quality of the sound. So it would be best to keep the cables as short as possible. The optimal position for placing your hi-fi source component is in between the two speakers. If your speakers are positioned at a distance of 1.5 meters apart from each other, then the length of your cable should be just about a meter long. For safety reasons it is best not to run your cables in a straight line from your hi-fi source component. So take that into consideration and allow a little bit more slack in the cabling.

2. Positioning the Hi-Fi Components – You will need to make sure that the equipment is placed in a place where it is not affected by other vibrations.

3. Surround Sound – When connecting your surround sound speakers, you will obviously have to use more cables but you will need to make sure that they are not left hanging loose or in places where it could cause you to trip.

Once you have successfully set up your listening room, speaker and hi-fi source component, you can start enjoying your new high-end hi-fi system. As you use your hi-fi system, you might want to experiment and change things around in the room to get better sound.

About the Author:
Malcolm Stewart is the owner and manager of kensingtonav.com - an Audio Visual company specializing in High-End Hi-Fi Systems and Home Automation in London.
Posted by Ravi Kolhe | 8/11/2013 | Continue Reading...

How to Restore EDB Files from Failed Server?

Problem Scenario (as faced)

If it happens to be that your Exchange CAS box is crashed, either accidentally or by mistake, there is absolutely no way of getting it back. You might try creating an Exchange server with the same IP address and same server naming convention, but it simply will not work in any case due to the existing failed exchange server information Exchange Active directory and utilized domain configuration as well as Schema partitions of the .DIT DB file. The only viable option that you are left with in that scenario is to use the fallowing switch for performing the Exchange Server installation, in case it is a mailbox server.

EDB_files
Recover with /M:RecoverServer Switch - Steps to Be Undertaken:

1. First and foremost, you must install the fresh Server

2. Then, you need to provide the same IP as well as the same computer name which was there previously before the Exchange server failed.

3. Join the domain and also you need to ensure that your account has been added into the Local administrator and also that you have proper rights for Exchange administrator.

4. Now, the nest step is to reset the computer account in AD

5. From there onwards, you must make sure that your Server is identical with the failed server by keeping the drive letters same etc

6. Now, you need to copy the binaries of the Exchange installation onto this server

7. Eventually, drill to that directory

8. Finally, use the fallowing switch

Better Way of Dealing with It - By Using Exchange Recovery software

How to restore EDB files from failed server? Finding answer to this question also lands you in the rein of yet another cool-tool, the Repair Exchange Mailbox software, provided by an industry leading software vendor, SysTools. Use it to restore EDB files easily, swiftly, timely, accurately and smartly, whereby maintaining complete data integrity and ascertaining end-to-end recovery.

About the Author:
This esteemed organization has been serving users with a wide range of technically sound yet operationally user friendly software programs like Exchange Recovery application which has been helping worldwide users to Repair Exchange Server data before converting it to PST or transferring it to another Server.
Posted by Ravi Kolhe | 7/10/2013 | Continue Reading...

How to Create a GUI Component for Java in Just 7 Steps

It becomes a turbulent issue for web site managers when they come across some issues in their Java website. Unlike PHP, it is a secured language, which provides an arranged procedure of coding. However, the customization is not an easy task, when it comes to Java. But, if you are trying to create a GUI component for your Java website then this tutorial can help you.

Technically, you will have the need of Java swing library, which is based on Java Abstract Widget Tool Kit. For your information, ‘AWT’ is an old platform. This platform is dependent on GUI toolkit. So, there is a freedom to use the components of GUI library like Button, textbook, etc, which sets you free from creation of components from zero.

Here is a video, which can be followed for creating the swing component:



Create a GUI Component for Java in Just 7 Steps
On looking at the above-mentioned graph, you might be coming across the question that what is container class. Noticeably, the components in swing are JComponent and can be added in container classes. Therefore, you should know the container classes at first.

Container classes

Technically, you need a class with competency of carrying other components and container classes are that classes. You can also take the reference from its name. So, you need to have a container class for making a GUI. There are three kinds of class: Panel, Frame, and Dialog. The panel is basically a container, which stands for organizing components on a window. The frame class is window, which contains components and possesses independent title & icons. Well, you will remember dialog class as a pop up window, which will beget a pop up on requirement of display. However, this class is not like Frame class in case of functionalities.

Here is an example that you need to see in order to learn how to design GUI in Java.

Step 1: Copy Below Mentioned Code Into An Editor

import javax.swing.*;

class gui{

public static void main(String args[]){

JFrame frame = new JFrame("My First GUI");

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setSize(300,300);

JButton button = new JButton("Press");

frame.getContentPane().add(button); // Adds Button to content pane of frame frame.setVisible(true);

}

}

Step: 2 Now, you need to save this code snippets, compile, and run the code.

Step: 3 In this step, you need to add a button in your frame by copying further mentioned code into an editor.

import javax.swing.*;

class gui{

public static void main(String args[]){

JFrame frame = new JFrame("My First GUI");

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setSize(300,300);

JButton button1 = new JButton("Press");

frame.getContentPane().add(button1);

frame.setVisible(true);

}

}


Step 4: Now, you need to execute the code, which will bring this button.

Create a GUI Component for Java in Just 7 Steps

Step 5: In this step, you can try to add two buttons. You just need to copy and paste the below given code in an editor.

import javax.swing.*;

class gui{

public static void main(String args[]){

JFrame frame = new JFrame("My First GUI");

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setSize(300,300);

JButton button1 = new JButton("Button 1");

JButton button2 = new JButton("Button 2");

frame.getContentPane().add(button1);

frame.getContentPane().add(button2);

frame.setVisible(true);

}

}


Step 6: Congratulations, now you just need to save, compile, and run this program.

By following this process of GUI component creation, you will be able to create a spectacular component. In case, this process is not easy to execute for you then you should take Java web development services from a renowned company. It will help you in enhancing the competency of your website. And, offshore Java application development will not be much costly for you. So, just find skilled developers and create your GUI component.

About the Author:
Mia Johnson is a senior coder turned web consultant, who advises newbie business organizations to Hire Java Developers at cost-effective prices for Java web development.
Posted by Ravi Kolhe | 6/26/2013 | Continue Reading...

How to Recover Files From a Non-Booting Mac

One common issue that we help customers with everyday is recovering files from their Mac hard drive when it fails to boot into the operating system. If you have any files on your Mac hard drive that are not backed up then this can be devastating, but that's where Mac recovery software can help you recover your files to another drive.

Since the operating system on your Mac hard drive is no longer available, you will need another method of booting your computer so that Data Rescue 3 Mac recovery software can access the hard drive.

Methods for using Data Rescue 3 with your Non-Booting Mac:

A. Secondary Startup Drive: Install a version of OS X to an external drive. You can use this drive to boot your computer. Then install Data Rescue 3 (try the free demo) to this drive to begin running a scan.

http://www.prosofteng.com/products/data_rescue_choose_os.php

B. Target Disk Mode: If you have a secondary Mac available to you that is working, you can use this method to connect the two Macs. You can install Data Rescue 3 onto your working Mac and your non-booting Mac will show up as an external drive.

http://www.prosofteng.com/products/data_rescue_target_disk_mode.php

C. Data Rescue 3 Boot DVD (Older Mac's only): If you have an Early-2011 or older model Mac, you can use the Data Rescue 3 Boot DVD to start your Mac. The current DVD will not support any Macs released after June 2011.

http://www.prosofteng.com/products/data_rescue_boot_dvd.php

Next Step, Scanning or Cloning your Mac Hard Drive

How to Recover Files From a Non-Booting Mac
Once you have Data Rescue 3 running using one of the boot methods above, you will need to scan your Mac hard drive to recover your files to another drive. When you start a new scan in Data Rescue 3, select your Mac hard drive as the source in step one, and then choose one of the following tasks:

1. Quick Scan - If the volume on your drive is still detected by Data Rescue 3, this is the first scan you will want to try and it will detect existing directory structures on your drive. You should only select a single volume for a Quick Scan. This scan usually takes only a few minutes to complete and will result with a Found Files folder containing your original folder hierarchy and file names.

*If the Quick Scan takes longer than an hour or is unable to find any files, try the Deep Scan.

2. Deep Scan - This will scan the entire drive for files. The first part of the scan will detect the existing directory structures on the drive like the Quick Scan but can work with multiple volumes. This will result in a Found Files folder like from the Quick Scan.

The next portion of the scan will search the entire drive, block by block, for files based on file patterns. This will provide the Reconstructed Files folder, which will not have the original directory structure or file names. The files will have generic file names and will be organized by categories and file types.

3. Clone - In more severe cases you will want to clone your Mac hard drive. Like if you suspect potential hardware problems with the drive, if you notice any drive failure warnings while scanning, or if scanning the drive provides unrealistic estimates for the time required for the scan.

In order to clone you will need a secondary drive that is the same size or larger than your Mac hard drive and does not contain data (cloning will erase and write to the destination). Cloning will attempt to make an exact copy of your drive to a known good drive, so that you can scan the good drive instead of further damaging the original drive. Once the clone is completed, then you will want to run a Deep Scan on the clone drive using Data Rescue 3.

Recovering Files

When you have finished scanning your Mac hard drive or the clone, the last step is to select files and recover them to another drive. Once the recovery completes you will have your files on another drive. We would recommend going through the files on this drive to verify that your important files are there and that they open properly.

If you have any questions about this process at all, contact our FREE California based support team via email at: support@prosofteng.com or phone:  925-426-6306. Support is available Mon-Fri,  7am-5pm Pacific.
Posted by Ravi Kolhe | 6/01/2013 | Continue Reading...