Multisim is a simple and easy-to-use program for designing electronic circuits on computers. It is best for educators, students, and professionals including VHDL, SPICE simulation, and a PCB generator. The open-source program is designed by NIST (National Institute of Standard Technology) that helps you to design simple electronic circuits, multi-layer resistors, a...

Praat is a curious application that will let you record sounds or import them if you have already recorded them, and analyse them exhaustively. Spectral, tone, intensity and formant analysis are the four fundamental tests you can perform. Once finished, of course, you'll be able to manipulate audio tracks and modify them as you like. Having all the process do...

The shear realism of this screensaver will have you frozen in front of the image. SereneScreensave transforms your screen into a fish tank full of multicoloured fish, all with their own special movements, and that come presented in 3D. The animations and lighting effects really bring a great level of realism to the image.

Here you are a really interesting free application that apply effects on your webcam image on the fly. ManyCam allows you apply effects to your webcam images. Maybe the most surprising ones are those which lets you change the background and put you in the middle of the ocean or any other animation. It’s really funny and you can use it with your usual IM clien...