Free geniuses software for linux

sonic-snap is a project with you can use your sn9c102 based camera under linux. You need to get the kernel driver at linux-projects.org.

sonic-snap has some distinguishing features which include histogram analysis, normalization, ppm captures and realtime mpeg encoding.

sonic-snap was tested with this really cute little webcam, called Sweex Minicam. The Sweex Minicam is really cheap (10 to 15 euros), and has the size of a 50 eurocent coin. Due to its size, it should be a suitable robotics camera.

The sonic-snap application will most likely work with any webcam, based on the sn9c102 chip from Sonix. (Sweex 100k and Genius NB work as well). If you get it to work on your cam, why not send me a snapshot? You can reach me at bram at sara.nl

Volume.app is a small graphical software utility enabling quick and convenient control of a computers audio volume level. Volume.app is intended for use on Linux/Unix systems in conjunction with an X window manager that supports dockable applications ("dockapps") such as AfterStep, BlackBox, or Window Maker.

It is a refinement of an idea that first appeared in Timecops WMix: a user interface comprising a "knob" that can be interactively "turned" by clicking and dragging the mouse. I found this approach quite appealing, both from an aesthetic viewpoint, and (more importantly) from a user-interface perspective.

A handful of other dockapp volume control programs are out there, and I have tried many of them. An interface element present in most of these is some form of "slider" as the primary means of adjusting the volume. (A fictitious example may be seen at right). To my dismay, with this kind of interface, volume adjustments tended to be large and abrupt. Because the slider was so small, raising or lowering the volume "just a bit" required extremely careful control of the mouse-- a slip of the hand had the potential to spike the volume to full blast. (I have a set of Altec-Lansing ACS48 speakers which make this a rather unpleasant experience). This approach left much to be desired.

I longed for an alternative, and upon playing with WMix (pictured at left) I had found it. The knob was genius in that it provided a means of graphically adjusting the volume, as a slider would, without tying itself directly to the motion of the mouse. The basic mode of usage is identical: you click on the thing and drag the mouse up or down. However, with the knob, the range of motion need not be confined to the postage-stamp-sized area of the dockapp. The mouse travel needed to cover the entire range of volume settings can be made longer, on the order of the full height of the screen-- almost like a much larger, easier-to-use slider. No longer were precise movements needed to make volume adjustments!

Still, I found WMixs interface to be a bit busy (never was a fan of tiny little buttons) and the all-important knob was yet a rather small target to find with the mouse. So, I grabbed a copy of the WMix source code, and rebuilt it into a dockapp that had a much larger knob as its sole interface element. I dubbed it Volume.app, and have placed it here for the benefit of everyone.