AUDACITY MP3 EXPORTING PROBLEM?

To export mp3 files in audacity we need a special mp3 library called lame. To install this, it is very simple follow these procedures to export mp3 files in audacity and enjoy a great mp3 experience.

1. Open the “Synaptic” software-package manager.

• In GNOME (the default desktop environment for Ubuntu and many other systems), you can find it by clicking on the “System” menu at the top of the screen, and then choosing “Administration”.

• In KDE (the desktop environment for Kubuntu and many other systems), there will be a similar menu accessible from the bottom-left of the screen.

• In all desktop environments, you can open up a command-line terminal and type “gksu synaptic” or “sudo synaptic”.
• Enter your Ubuntu user password when asked for it.
• In the Synaptic window, choose “Settings”, then “Repositories”.
• In the "Ubuntu Software" tab, check the box for Software restricted by legal or copyright issues (“multiverse”), and then the Close button
• Back in the main Synaptic Window, type “lame” in the "Quick search" box
• The search results will show the packages “lame” and “libmp3lame0” at the top of the list. Mark both for installation (by double-clicking).
• Click the "Apply" button, and on “OK” to any warnings that come up.
• The LAME software will automatically download and install. Close the Synaptic window when it has finished.

Upgrade ubuntu to 12.04

Ubuntu provides the flexibility of upgrading from an older version to a new supported version. You don't need to install it fresh to use  new Ubuntu this guide helps you to upgrade to Ubuntu 12.04 from an older version.You can directly upgrade to Ubuntu 12.04 LTS ("Precise Pangolin") from Ubuntu 11.10 ("Oneiric Ocelot") or 10.04 LTS ("Lucid Lynx").

Why upgrade

Why should you upgrade instead of performing a clean install of a supported version? Some don't like to perform new installations when there is a possibility to upgrade. The advantage of this is that you can keep your current configuration without having to change much. This is often the case in production environments where you don't want to lose a machine just because it needs a higher OS version.

Upgrade from 11.10 to 12.04 LTS and 10.04 LTS to 12.04 LTS

Network Upgrade for Ubuntu Desktops 11.10 to 12.04 LTS (Recommended)

You can easily upgrade over the network with the following procedure.

1. Run the Update Manager application from the Unity Dash
2. In Update Manager, click the Settings... button, and enter your password to start the Software Sources application.
3. Select the sub menu Updates from the Software Sources application.
4. Check the "Release upgrade - Show new distribution releases" drop down to make sure "Normal releases" is selected, and change it if otherwise.
5. Close the Software Sources application and return to Update Manager.
6. In Update Manager, click the Check button to check for new updates.
7. If there are any updates to install, use the Install Updates button to install them, and press Check again after that is complete.
8. A message will appear informing you of the availability of the new release.
9. Click Upgrade.
10. Follow the on-screen instructions.

Network Upgrade for Ubuntu Desktops 10.04 LTS to 12.04 LTS (Recommended)

Note that the page under https://wiki.ubuntu.com/PrecisePangolin/ReleaseNotes/UbuntuDesktop#Upgrading_from_Ubuntu_10.04_LTS_to_Ubuntu_12.04_LTS says: "It is generally recommended that users of Ubuntu 10.04 LTS wait until the first point release, due in July, before upgrading." Follow the instructions there if you want to upgrade earlier since the following instructions will probably not work until then.

You can easily upgrade over the network with the following procedure.

1. Open the Update Manager application from the System → Administration menu.
2. In Update Manager, click the Settings... button, and enter your password to start the Software Sources application.
3. Select the sub menu Updates from the Software Sources application.
4. Check the "Release upgrade - Show new distribution releases" drop down to make sure "Long term support releases only" is selected, and change it if otherwise.
5. Close the Software Sources application and return to Update Manager.
6. In Update Manager, click the Check button to check for new updates.
7. If there are any updates to install, use the Install Updates button to install them, and press Check again after that is complete.
8. A message will appear informing you of the availability of the new release.
9. Click Upgrade.
10. Follow the on-screen instructions. 

Upgrading Using the Alternate CD/DVD

Use this method if the system being upgraded is not connected to the Internet.

1. Download the alternate installation CD from http://releases.ubuntu.com/precise/
2. Burn the ISO to a CD and insert it into the CD-ROM drive of the computer to be upgraded.
   • If the ISO file is on the computer to be upgraded, you could avoid wasting a CD by mounting the ISO as a drive with a command like (please make sure that the path to the iso file in the second command reflects where you file is located in your computer, also the Desktop folder may have a different name if you are using Ubuntu in a language different than English):

     sudo mkdir -p /media/cdrom
     sudo mount -o loop ~/Desktop/ubuntu-12.04-alternate-i386.iso /media/cdrom

3. A dialog will be displayed offering you the opportunity to upgrade using that CD.
4. Follow the on-screen instructions.

If the upgrade dialog is not displayed for any reason, you may also run the following command using Alt+F2:

gksu "sh /media/cdrom/cdromupgrade"

Or in Kubuntu run the following command using Alt+F2:

kdesudo "sh /media/cdrom/cdromupgrade"

Upgrading from a Torrent

If you're familiar with torrents and have an ISP that doesn't limit them, you can download the upgrade much more quickly. You'll also be sharing your bandwidth with other Ubuntu users and helping to reduce the load on the servers, which is especially beneficial on release days when the server overload causes problems.

Just visit http://releases.ubuntu.com/12.04/, and download the appropriate torrent file for the alternate installation CD, found in the list towards the bottom of the page. (It will have a filename like ubuntu-12.04-alternate-i386.iso.torrent.) Load it into your BitTorrent client, and after it is done downloading the ISO, follow the alternate CD upgrade instructions.

Detailed instructions in a blog post and in a forum thread.

Ubuntu 12.04 review video

Here is the link for a popular video review of ubuntu 12.04 precise pangoline

http://www.google.co.in/url?sa=t&source=web&cd=8&ved=0CG8QtwIwBw&url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3Dh4tBDam3ttI&ei=3LmmT-CyFIW8rAelxJXiAQ&usg=AFQjCNHqL8fQmdSDr3MAyE5wr7f3p9-zeQ&sig2=L672wLrmcPUAlYUj74LKIw

Ubuntu 12.04 released!

Its precise stylish and secure. Much awaited ubuntu 12.04 stable version is released. Happy news is this LTS version comes with handful of new features along with five years official support. Here is the link to the release homepage.

Ubuntu 12.04 precice pangolin features.

Ubuntu 12.04 precise pangolin is expected to be releasing tomorrow, sources confirmed that 12.04 LTS is coming with loads of new features along with a fresh Kernel.

The Head Up Display or HUD is the prime change in Upcoming 12.04 LTS

HUD is a new way to quickly search and access any desktop application’s and indicator’s menu,” HUD can be accessed by pressing the Alt key and typing in a description of what you want to do. The software will then return a set of corresponding entries, including some fuzzy matching, the project team says. Over time, it also learns from your previous choices to make the search more and more accurate.

Power Savings

Definitely power saving is the important change after HUD. 12.04 enabled with RC6--the technology that allows GPUs to go into a very low power consumption state when the GPU is idle--is now enabled by default for Sandy Bridge systems. The result can be improvements of between 40 and 60 percent in power usage under idle loads.

Clickpad or Trackpad support

Ubuntu 12.04 now includes support for ClickPads, On which the physical button is integrated into the trackpad surface. Coming in Ubuntu's next release will be support for Apple Magic Trackpads and more devices, the Ubuntu team says.

Improved language support

When users install new software through the Ubuntu Software Center, the corresponding language support packages--including translations and spell check modules--are now installed automatically as well. reduces user effort to install them manually after software installation.

New Kernel

Stable release of Precise Pangolin,  includes the 3.2.0-17.27 Ubuntu kernel, which is based on version 3.2.6 of the upstream stable Linux kernel.

Updated Unity 

In this new release, the "Appearance" panel in the software's system settings lets you more easily configure some properties of Unity. For bookmark users, the Unity launcher now also includes Nautilus quicklist support.

Along with the above changes Ubuntu 12.04 coming with New version of Libre office and as usual, Rhythmbox as Default music Player

Ubuntu 12.04 release date

Normally Ubuntu releases every 6 months. The ubuntu 12.04 LTS aka Precise Pangolin will be releasing on 26th April 2012. apart from the early LTS versions Precise Pangolin will be coming with 5 years of support.
the beta version is already available for download. you can download ubuntu 12.04 LTS here. 
Related

• [Solved] Ubuntu 12.04 blinking screen on startup
• [SOLVED] ipod - Unhandled Lockdown error(mounting issue)
• Slow wireless internet connection in ubuntu
• [SOLVED] DBus error :ipad WITH UBUNTU
  
  
  
  

[Solved] Ubuntu 12.04 blinking screen on startup

After installing Ubuntu 12.04 beta version, if you are getting a blinking screen, probably it will be the problem with hardware. it is advised to choose try ubuntu before installing it to check whether the OS is working without any problem.


try the following steps if you are facing this issue. 


nomodeset, which is needed for some graphic cards that otherwise boot in to a black screen or corrupted splash, acpi_osi= to fix lcd backlight and other problems, and noapic and nolapic to work around various ACPI BIOS issues. In this how to I will explain briefly what this is and how to do it. 


nomodeset
The newest kernels have moved the video mode setting into the kernel. So all the programming of the hardware specific clock rates and registers on the video card happen in the kernel rather than in the X driver when the X server starts.. This makes it possible to have high resolution nice looking splash (boot) screens and flicker free transitions from boot splash to login screen. Unfortunately, on some cards this doesnt work properly and you end up with a black screen. Adding the nomodeset parameter instructs the kernel to not load video drivers and use BIOS modes instead until X is loaded. 

Note that this option is sometimes needed for nVidia cards when using the default "nouveau" drivers. Installing proprietary nvidia drivers usually makes this option no longer necessary, so it may not be needed to make this option permanent, just for one boot until you installed the nvidia drivers.

acpi_osi=
This option frequently solves problems with LCD backlight, fan control problems and misreporting of thermal events. What I understand it does (but corrections are welcome), is prevent the kernel from reporting to the bios that its any windows version the bios asks for. By default, the kernel pretends to be all windows versions, that way we are certain the bios executes all the code needed to initialize the hardware. Unfortunately, some bioses contain fixes to fix problems with specific windows versions (notably vista) that arent needed or dont work for other OS's. Setting

Code:

acpi_osi=

(nothing behind the = sign) as boot option makes the kernel not respond to osi queries.

If the bios has provisions for Linux, you can also try

Code:

acpi_osi="Linux"

Or you can try 

Code:

acpi_osi="Windows 2006"

To make the kernel pretend its vista and make the bios execute routines on machines that require them.

acpi=off
This disables ACPI completely. 
Note: this may not work with all computers and will disable a lot of useful (or even needed) features. In some cases it may even disable some crucial features, like.. fans. Be careful with this option, it might cause your machine to overheat if the fans no longer turn. Think of this as a last resort. Also note some machines requireacpi=ht instead.

Noapic and nolapic
noapic and nolapic kernel options instruct the kernel to not use certain programmable interrupt controllers. To understand what that means exactly requires a deep knowledge of PC hardware, I will not go in to that here, Ill limit myself to saying on some bioses, especially for older systems, there are problems in the implementation of this and it may be necessary to disable either or both to cure a wide range of obscure problems, often but not always related to keyboard and mouse and power management (standby/resume issues).

vmalloc=xxxM 
In some cases kernel drivers can not be loaded due to a lack of virtual addressing space on 32 bit systems. Logs will show errors like. 

Code:

allocation failed: out of vmalloc space - use vmalloc=<size> to increase size.

thanks for p4man who explained this here.

http://ubuntuforums.org/showthread.php?t=1613132