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RSS 2.0 Now Available! Thursday, April 03, 2003
 

Today's Top Stories:

  Roland\'s DisCover 5

The Roland DisCover 5 RealTime Orchestrator is the world\'s first performance keyboard that lets musicians manipulate Standard MIDI Files (SMFs) on the fly! DisCover 5 also features professional vocal harmony technology with over 90 presets for creating harmonies plus the ability to display lyrics and chords on the LCD and Video Output! More than anything, the DisCover 5 is just plain a whole lot of fun! Whether you want to mimic opera, or sing the best of the Bee Gees, the DisCover 5 has you \"covered.\"

News You Can Use

Software Update
Kontakt was designed by Native Instruments to be the most powerful sampler ever created. Kontakt fuses an innovative design with an advanced sampling engine. The result is an inspiringly fast and intuitively flexible sampler with exceptional sound quality. Available as a free download from their website is an update to version 1.2!

1.2 Upgrade Features:
• Direct from Disk (DFD) option: The additional DFD-extension is available separately on the NI website
• Release Trigger - the release of a note can now triggers a group
• Key Activator - activate groups by a key of the keyboard
• Controller Activator - activate groups by a MIDI controller
• New \"Note-On Counter\"
• \"Cycle Round Robin\" Function allows for consecutive cycling through groups upon keystrokes
• \"Cycle Random\" allows for random cycling through groups for playback
• Rescaler Value Display
• KONTAKT\'s master level and master pan can be controlled with MIDI-controllers 7 and 10
• DXi 2.0 support (Win only)

Around The Web
Every once in a while you come across something that simply catches your eye and says, \"I gotta\' tell somebody about this!\" Overkill designs has come up with a few furnishings that anyone who loves all-things Fender has got to see! Click on the following link and check them out first hand. Your significant other might not want them in the living room, but they would make a GREAT addition to your studio lounge!


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VESA
Acronym for Video Electronics Standards Association, an organization that sets all sorts of standards for handling video and multimedia data in PCs. Among other things VESA is responsible for the SVGA video standard, and the VESA Local Bus (sometimes known as VL-Bus), which is an interface standard for PCs that allows for high speed data transfer between the CPU and certain expansion cards (sort of like the ISA bus, but faster).
 View the Complete Glossary


The need for balanced cables.

"Why do most people tell me that balanced cables are only needed when you have really long cables, like 50'+?"

Balanced cables, when connected to the output of a balanced device, can carry a positive and negative version of the same signal. They are on separate wires and inverted in polarity from one another. When received at the other end, a special amplifier compares the difference in voltage between the signals in the two wires and amplifies it. Since the desired signal is completely opposite between the two it gets amplified. Any noise picked up along the cable length will be common (in phase/polarity) between the two wires. The amp amplifies the difference, which means signals that are the same end up getting canceled. This is known as common mode rejection. The degree to which these common (noise) signals are rejected is usually stated in a specification known as Common Mode Rejection Ratio (CMRR).

The longer the cable, the more likely it becomes that there will be more garbage picked up along the way, so it becomes more important that it be balanced so the user can benefit from the common mode rejection. Most people will tell you that cable lengths longer than about 20 feet should be balanced when dealing with analog audio (other forms of data transfer have their own unique limitations). This is a good rule of thumb, but in practice it really depends a lot on the environment (sources of EMI, etc.) and to a lesser extent the exact gear being used.

Related question: Is there any benefit to using balanced wiring for very short audio cable runs? In other words, is it really true that balanced cables are ONLY needed with long cable runs? The answer will be covered in a future Tech Tip. If anyone would care to venture a guess now feel free to e-mail us. A yet to be determined prize will be awarded for the first exceptionally good answer to this question.

  View all 1,700+ Tech Tips


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