[July 25, 2011] Computer and internet briefs Tweet Jul 24, 2011 (dpa - McClatchy-Tribune Information Services via COMTEX) -- Stereo triangle for the "sweet spot" Berlin -- Music and film enthusiasts take very seriously the sound they listen to and look for the optimal position for their listening pleasure. In technical terms, they are searching for the "sweet spot," according to the hi-fi trade organization High End Society. This "sweet spot" can be found with the help of a so-called stereo triangle. This is an imaginary equilateral triangle, the lower corner being considered the optimal listening position with the speakers being placed in the other two corners. Those who own speakers for home cinema can also include these in the model and place them behind the determined seating location. Should the "sweet spot" not be found by experimenting, then the open source software Sweet Spotter could be of help. It determines the spot with use of a computer, web cam and speaker. Test system before buying Blu-ray drive Berlin -- Before buying a Blu-ray drive, users should test to make sure their computer is powerful enough to display the HD content. There is a free programme from BD & 3D Advisor that can be downloaded to determine if your system can handle 3D pictures. The test concludes with a detailed listing of which components are suitable and which -- if possible -- must be replaced. The minimum standards for HD and 3D are available both for processor as well as the main memory (RAM) and graphic card or chip. The latter, for example, must support the so-called DHCP encryption and have a HDMI connection. The standards are valid both for drives built into PCs and external hard drives for laptops. iPhone and iPad users should avoid PDFs from unknown sources Berlin -- Owners of iPhones and iPads should not open PDF documents from unknown and insecure sources. The backdrop is a loophole in a programme library through which hackers can infect the device with harmful software, according to Germany's Federal Office for Information Security (BSI). The agency expects criminals to soon use the holes to retrieve confidential information, access built-in cameras, listen to conversations or locate users through built-in GPS systems. The safety advice says to follow the general information until Apple provides a software update. Affected by the vulnerability are iOS for iPhone 3GS and 4 up to version 4.3.3. and iOS for iPad and iPad 2 up to version 4.3.3. It cannot be ruled out that later iOS versions might also be affected by the loopholes. To see more of dpa, go to http://www.dpa.de/English.82.0.html Copyright (c) 2011, dpa, Berlin Distributed by McClatchy-Tribune Information Services. For more information about the content services offered by McClatchy-Tribune Information Services (MCT), visit www.mctinfoservices.com. [ Back To TMCnet.com's Homepage ]