New Projects - Fresh from the Labs
This month, I'm covering projects I've wanted to showcase but have held off on due to space constraints. CountBeats is a cracker of a little application—it's simple, yet it covers such a need for so many musicians, so I'm proud to give it top billing here. To quote the README file:
This is a simple little program designed to help you determine the speed of a piece of music on the radio or on a CD.
To use it, just invoke the program from the command line. You'll be presented with a screen describing the program, a time-bar, and a few buttons. Most should be self-explanatory. Just start tapping the spacebar in time to the music...the tempo bar will update and show how many beats per second are being played.

CountBeats is an ingenious little program for determining the tempo of a song by simply tapping away on the keyboard in time to the music.
Installation
First, there is a library you probably won't have installed: Tkinter. This was under the package name python-tk on my system, but it's worth looking in your local package manager for yours. The only other requirement seems to be a working version of Python 2.x onward.
Otherwise, installing this thing is a walk in the park. Simply download the 1K (!) tarball from the Web site, extract it, and open a terminal in the new folder. From here, run CountBeats simply by entering:
$ ./countbeats
Usage
The README file did a pretty good job of explaining how it all works, but I can expand on it a little further. As soon as you have a song for which you want to find the BPM rate, start the program and press the spacebar in time with the music. The more times you do this, the more accurate the rating will be, so stick with it for a good minute or two. If you want to clear away previous readings and start again (perhaps when another song comes on), click Clear at the bottom-left corner.
Given the cumbersome nature of a spacebar, it's generally best if you track a song's quarter notes, as eighths or sixteenths may track a bit inaccurately. If you know your way around Python syntax (which I don't), you may want to change the key to something like Ctrl for faster music.
That small niggle aside, this is an invaluable tool for musicians. Many times I've been working on a project and forgotten to note what tempo a song was in, making tracking a nightmare at times. DJ-remixing types probably will use this most of all, as they can use it to gauge the speed of whatever songs they're piecing together and work out which samples will be compatible with each other. All in all, this is a brilliant tool that is simple to use and install, and it probably takes the prize for smallest file size of any project I've covered!
If you like minimalism and are chasing a tuning reference for your acoustic guitar, this may well be the project for you. I especially meant that minimalism part—the only info I could find on the project's Freshmeat entry was the following: “wxGuitar is a useful application that will easily help the novice guitarist to faster (and better) tune the guitar.” And, that's pretty much it—that's all the information I can find anywhere on the Net. But, maybe I can illuminate things a little here.

wxGuitar is a very simple reference tool for tuning an acoustic guitar by ear. But an H string? An amusing typo!
Installation
I couldn't find an actual home page for wxGuitar, so you have to make do with the files provided on the (brief) Freshmeat page. Source is provided, along with Debian and Gentoo packages. As far as libraries go, the INSTALL file says you'll need wxWidgets >= 2.8.10 (I had to install libwxbase2.8-dev), along with alsa-utils, including aplay. If you're running with the source, once you have the needed libraries, grab the latest tarball, extract it, and open a terminal in the new folder. Enter the following commands to compile wxGuitar:
$ ./configure $ make
If your distro supports sudo:
$ sudo make install
If not:
$ su # make install
Once wxGuitar is installed, you may have it in your system's menu, or you can run it with the command:
$ wxGuitar
Usage
When you're inside the main screen, I think you'll find it rather straightforward. wxGuitar is very basic. Turn your speakers on and press any of the buttons on the left to play the corresponding note. The notes start from the highest note E string and go down to the lowest note E string. The second button is curiously marked H, but unless there's some kind of unique Eastern European scale I don't know about, logic dictates that should be a B string.
Press the button on the left for each string's note, and play the corresponding string on your own guitar as you fine-tune it. If you look on the bottom-left corner, there's a repeat option that will be set to every three seconds by default, which can be made longer or shorter if you so desire.
That's pretty much all there is to it. wxGuitar may not be complex (and if you're looking for a sophisticated tuning recognition program, you should look elsewhere), but if you want a minimalist program to tune by ear, this is probably for you.
John Knight is the New Projects columnist for Linux Journal.
Today’s modular x86 servers are compute-centric, designed as a least common denominator to support a wide range of IT workloads. Those generic, virtualized IT workloads have much different resource optimization requirements than hyperscale and cloud applications. They have resulted in a “one size fits all” enterprise IT architecture that is not optimized for a specific set of IT workloads, and especially not emerging hyperscale workloads, such as web applications, big data, and object storage. In this report, you will learn how shifting the focus from traditional compute-centric IT architectures to an innovative disaggregated fabric-based architecture can optimize and scale your data center.
Sponsored by AMD
Built-in forensics, incident response, and security with Red Hat Enterprise Linux 6
Every security policy provides guidance and requirements for ensuring adequate protection of information and data, as well as high-level technical and administrative security requirements for a system in a given environment. Traditionally, providing security for a system focuses on the confidentiality of the information on it. However, protecting the data integrity and system and data availability is just as important. For example, when processing United States intelligence information, there are three attributes that require protection: confidentiality, integrity, and availability.
Learn more about catching the bad guy in this free white paper.
Sponsored by DLT Solutions
| Making Linux and Android Get Along (It's Not as Hard as It Sounds) | May 16, 2013 |
| Drupal Is a Framework: Why Everyone Needs to Understand This | May 15, 2013 |
| Home, My Backup Data Center | May 13, 2013 |
| Non-Linux FOSS: Seashore | May 10, 2013 |
| Trying to Tame the Tablet | May 08, 2013 |
| Dart: a New Web Programming Experience | May 07, 2013 |
- RSS Feeds
- Making Linux and Android Get Along (It's Not as Hard as It Sounds)
- New Products
- Drupal Is a Framework: Why Everyone Needs to Understand This
- A Topic for Discussion - Open Source Feature-Richness?
- Home, My Backup Data Center
- Validate an E-Mail Address with PHP, the Right Way
- Tech Tip: Really Simple HTTP Server with Python
- Trying to Tame the Tablet
- New Products
Enter to Win an Adafruit Prototyping Pi Plate Kit for Raspberry Pi

It's Raspberry Pi month at Linux Journal. Each week in May, Adafruit will be giving away a Pi-related prize to a lucky, randomly drawn LJ reader. Winners will be announced weekly.
Fill out the fields below to enter to win this week's prize-- a Prototyping Pi Plate Kit for Raspberry Pi.
Congratulations to our winners so far:
- 5-8-13, Pi Starter Pack: Jack Davis
- 5-15-13, Pi Model B 512MB RAM: Patrick Dunn
- Next winner announced on 5-21-13!
Free Webinar: Linux Backup and Recovery
Most companies incorporate backup procedures for critical data, which can be restored quickly if a loss occurs. However, fewer companies are prepared for catastrophic system failures, in which they lose all data, the entire operating system, applications, settings, patches and more, reducing their system(s) to “bare metal.” After all, before data can be restored to a system, there must be a system to restore it to.
In this one hour webinar, learn how to enhance your existing backup strategies for better disaster recovery preparedness using Storix System Backup Administrator (SBAdmin), a highly flexible bare-metal recovery solution for UNIX and Linux systems.




4 hours 37 min ago
4 hours 59 min ago
5 hours 10 min ago
5 hours 14 min ago
5 hours 44 min ago
8 hours 35 min ago
9 hours 11 min ago
9 hours 12 min ago
9 hours 13 min ago
9 hours 14 min ago