Welcome to the microformats wiki! Resurrect your old recordings | Audio Restoration | Brian Davies UNED Sound Exposure : Definition, Terms, Units, Measurement - Acoustic Glossary The SI unit is Pa² s however the practical unit used in Noise Dosimeters (sound exposure meters) is Pa² h. For a given period of time, an increase of 10 dB(A) in Sound Pressure Level corresponds to a tenfold increase in EA. 1 Pa² h = 100 Dose% = 85 LAeq(8 h) = 85 dBA for 8 hours. 0.1 Pa² = 74.9 LAeq,8 h 0.2 Pa² = 78.0 LAeq,8 h 0.5 Pa² = 81.9 LAeq,8 h 1 Pa² = 84.9 LAeq,8 h = 100% Dose 2 Pa² = 88.0 LAeq,8 h 5 Pa² = 91.9 LAeq,8 h 10 Pa² = 94.8 LAeq,8 h see also : Exposure Action Value : EAV and Exposure Limit Value : ELV Most modern sound level meters measure sound exposure and then calculate the required parameters. To see a range of Noise at Work Metersclick here. In practice the SEL normalized to a 1 second period was found to be extremely useful when comparing noise levels and is now commonly used and also referred to as the Sound Exposure Level, which can be confusing if not clearly stated. So Sound Exposure Level : SEL is also any Leq noise level or event 'commonly' normalized to 1 second.
Wiki [Ubuntu Česko] GoldWave - Audio Editor, Recorder, Converter, Restoration, & Analysis Software Cursos en Abierto de la UNED ? OCW UNED Audacity Development Manual Thinkpad-acpi Thinkpad-specific ACPI driver This is a Linux ACPI driver for the ThinkPad laptops written by Borislav Deianov and Henrique de Moraes Holschuh. The driver replaces ibm-acpi in Linux mainline as of 2.6.22 (March 2007). To confuse matters further, it appears that there was also an older (now abandoned) driver of the same name written by Erik Rigtorp which never made it into the mainline kernel. The current thinkpad-acpi contains essentially the same functionality as ibm-acpi with some added features. Among which are registering of acpi events to the "thinkvantage" and volume/mute buttons which could previously only be accessed through the use of the tpb utility. In Linux Kernel v2.6.31 "make menuconfig" the driver can be enabled in: Hibernate When hibernating, thinkpad_acpi should be added to the modules which are unloaded before and reloaded after hibernation. For pm-utils, just create the following file: /etc/pm/config.d/thinkpad_acpi SUSPEND_MODULES="thinkpad_acpi" Hotkeys sysfs interface
Video Toolbox: 150+ Online Video Tools and Resources Online video is a huge trend - so huge that's it's proving hard to keep track. From video sharing sites to video mixers, mashups and converters, we've brought together more than 150 of our favorite sites in this category. Enjoy. Live Video Communications Stickam - The best site for live video communications with multiple people. Online Video How-to Online Video Editors Eyespot - add effects and transitions to the videos you upload, or use some of the large amount of free video clips and music from Eyespot's media partners.MuveeMix - Upload your movie, mix it with music, add cool effects and share it on MySpace, Friendster, Blogger, and other networks.Motionbox - This service features the ability to link to a very specific point or "segment" within the clip itself.Cuts - Insert sound effects in your videos, add captions, loop the best parts and in minutes you can share your creation with the world.JumpCut - a free service that enables you to upload, edit and share your videos. Video sharing
Academia and the MOOC Full course description The New York Times said 2012 was “the year of the MOOC” and EDUCAUSE said MOOCs have “the potential to alter the relationship between learner and instructor and between academe and the wider community.” Many elite universities are offering Massive Open Online Courses, but most colleges and educators are unsure about what MOOCs are and if they are worthwhile. Can an "open" course offered at no cost to a very large number of participants who receive no institutional credit be a worthwhile venture for a college? In this class, we will briefly cover the history and development of MOOCs. Kenneth Ronkowitz Professor; Instructional Designer Ken Ronkowitz has been designing and teaching online courses since 2000.