04 March 2009

Robotics DC Motor


DC motor is the most common component used in building a small functioning moving robot. Apart from the motor's performance, the type of motor, as well as the physical size is of great important to consider when you design a robot. To understand how these motors function is very crucial as it will affect the overall performance of the robot. You can learn the basic function of motor and other related subjects at DC Motor.

01 March 2009

Audiocity Audio Recording


If you are in a Music Band, then it is useful to get to know and use this piece of Sound Editor Application named Audacity. It has many advantages where you can simply create, edit, cut and paste, modify the sound and many more with great ease. Unlike other sound editor I have used before, audacity by far the most convenient tools for me to edit sound. Now it is in it latest version, Audacity 1.3.7 (Beta) for windows, Mac and Linux/Unix. I have use the version 1.2.3 long before this version came out. I used it to create sound effects during live stage presentation for the school where my wife works as a teacher. It was fantastic; the shows came alive with all the sound effect goes along with their stage act.

This version have significant improvement compare to the previous version since most of the former bug has been fix, basically it is a bug-fix release. It significantly improves stability and usability, especially on Mac OS X, but incorporates some new features too.

a) Cross-Platform Bug Fixes
b)Platform-specific Bug Fixes
c) New Features and other changes:
-F11 Full Screen mode, high-quality "Sliding Time Scale/Pitch Shift" effect, Audio Contrast Analyzer
-Windows: sound devices can now be opened using the more efficient DirectSound API
-As a first step towards improving latency correction, a fixed rather than variable correction is now applied

However because it is still in beta version, it has not complete with complete documentation just yet and it meant for advanced users. But for those who want to follow the manual/complete documentation go for the Audacity 1.2.6. This version is more stable, complete and fully documented. You can have Audacity 1.2.6 and 1.3.7 installed on the same machine.








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