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SONIC VIZUALIZER
2007-11-23 17:16:00
ScreenshotsSonic Visualiser 1.0 showing a waveform pane and a melodic range spectrogram pane. (The music is "After the Pain" by Carlos Pino.)Overlaid on the spectrogram is a note layer, showing the output of a note-tracker Vamp plugin that is being evaluated. The notes from the tracker are played using a piano sample, configured in the plugin dialog visible. Sonic Visualiser 1.0 showing about a minute of the final movement of Mahler's 9th symphony, performed by the Czech Philharmonic under Vaclav Neumann. (In fact the whole final movement is loaded and may be scrolled through – see the green overview at the bottom of the window.) The waveform pane at the top is overlaid with a spectral centroid calculation (the coloured shading), the outputs of two note onset detection Vamp plugins (red and black vertical lines – neither of them seems to work very well on this sort of music) and the onset li...

The fastest computers are Linux computers
2007-11-20 09:09:00
What do the BlueGene/L System, the BlueGene/P system and the New Mexico Computing Applications Center SGI system, based on the Altix ICE Integrated Compute Environment 8200 model, have in common?First, they're the top three fastest computers in the world, according to the latest Top 500 supercomputer list. Second, they all run Linux .It's not just the crème de la crème of supercomputers that run Linux, however. 85.2 percent of the Top 500 supercomputers run Linux. In other words, 426 of the world's fastest 500 supercomputers depend on Linux.Linux-powered supercomputers don't require any particularly special version of Linux. New Mexico's SGI Altix ICE, for example, run pretty much standard Novell SLES (SUSE Linux Enterprise Server) and Red Hat's RHEL (Red Hat Enterprise Linux).One of the reasons why Linux owns HPC (high-performance computing) is that today's supercomputers tend to be made up of clusters of multi-cored processors. Typically, these are dual-core CPUs. The one ...
More About: Computers

Hacker’s Dirty Tricks
2007-11-07 12:19:00
Is it hard to be a hacker? How do I become a hacker? I want to learn more about hacking! Those are the things that I often hear or see on forums. Somebody asked me the other day if I know how to hack a site and whether it’s hard or not. I’m no hacker, I’m just a journalist. However, Petko D. Petkov aka pdp is a world-renowned hacker who in his latest blog post describes how easy it can be for someone with just a bit of skill to hack into military and government sites - .mil and .gov that is.He won’t give you the tools or tell you where to get them from, but he does explain how easy it is to exploit certain vulnerabilities. He says that the web is full of open CITRIX gateways and while he was performing some CITRIX testing he hacked a lot of GUIs and "played" around with .ICA files. What he found out is that two great tools hackers have at their disposal are Google and Yahoo that can be queried for public .ICA files. After employing this method he was presented with lots ...
More About: Tricks , Dirty

tech-pic
2007-11-07 12:02:00
These compact speakers form Audio Tech nica are one of the neatest examples of engineering perfectly blending with the drawing board ideas: these speakers aren't only extremely useful products that boost the capabilities of your portable media player, but are a stylish appearance in themselves.Despite all the convenience of common MP3 players, they still lack one thing: speakers. Now, it's not that no one ever thought about such a thing but it's the fact that these days, the portable players' development is heavily focused on video and wireless connectivity, as well as compatibility with other devices, networking and so on. This is why numerous manufacturers have designed a very wide range of products made especially for the portable players, including speakers of all kinds .

Advanced Configuration and Power Interface
2007-11-07 10:53:00
Advanced Configuration and Power Interface Abbreviated ACPI. An interface specification developed by Intel, Microsoft, and Toshiba for controlling power use on the PC and all other devices attached to the system. A BIOS-level hardware specification, ACPI depends on specific hardware that allows the operating system to direct power management and system configuration. See also Advanced Power Management. Advanced Data Communications Control Procedures Abbreviated ADCCP. A bit-oriented, link-layer, ANSI-standard communications protocol. See also High-level Data Link Control. Advanced Interactive Executive Abbreviated AIX. A version of Unix from IBM that runs on its RS/6000 workstations and on minicomputers and mainframes. Although AIX is based on Unix System V Release 3, it contains many of the features available in System V Release 4, is POSIX-compliant, and meets the Trusted Computer Base (TCB) Level C2 security. One of the major enhancements of AIX is Visual Systems Management (VSM)...
More About: Vance