Antex electronic DMX-4 user manual What’s a dB and why should I care?, Installing the Software XP

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DMX-4 USB Mixer User Manual

What’s a ”dB” and why should I care?

Throughout this manual, the term “dB” is used. This stands for decibel. You may think, “but I just want to record a legal proceeding. I don’t want to be a recording engineer. Why should I care about this?” Although dB’s may seem complicated mathematically:

dB = 20 x log(signal level/reference signal level)

Using dB’s gives you a better feel for how changing the volume will sound to your ears. For example, if you increase the output of your stereo amplifier from 1/10 of a watt to 1 watt, this seems like a small change, only 9/10 of a watt. If you increase the output from 4 watts to 40 watts, this seems like a real big change. However, in both cases you are increasing the output by 10dB, and surprisingly, in both cases it will sound to you like the music only got twice as loud.

Negative dB’s means quieter. –10dB sounds half as loud.

Positive dB’s means louder. +10dB sounds twice as loud.

0dB means no change in the loudness when referring to a slider setting. For VU meters, 0dB is the maximum level. Severe distortion occurs above 0dB.

Installing the Software - XP

The Antex Mixer Program requires Microsoft .NET Framework 2.0. If you do not have this installed on your computer, the InstallShield will stop. To

DMX-4 USB Mixer User Manual

check first if you have this on your computer already, click the “Start” button on the lower left of your computer screen. Click “Control Panel”, then “Add or Remove Programs”. When the program list is populated, scroll down and see if there is “Microsoft .NET Framework 2.0”. If not, open Internet Explorer and go to :

http://www.microsoft.com/downloads/details.asp x?displaylang=en&FamilyID=0856eacb-4362- 4b0d-8edd-aab15c5e04f5

(Or, you can go to http://microsoft.com and type “.NET Framework 2.0” in the Search box.)

Follow the instructions to download and install

.NET Framework 2.0.

Go to www.antex.com and download the latest software driver for the DMX-4. The installation process is fairly straightforward, using the InstallShield.

Run the “Setup.exe” program.

The first dialog box will say “Preparing to Install…”

On the second dialog box, click “Next”.

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Contents DMX-4 Important Safety Instructions Page General description Installing the Software XP What’s a dB and why should I care?Page Page Page Installing the Software Vista Page Not use above 240 VAC Power AdapterConnections Monitor Connections USB ConnectionInput Connections Using the Antex Mixer Program Phantom Power Adjusting the Recording LevelRecording Mix Matrix Monitor Mix MatrixSample Rate Input and Monitor LabelsOpening and Saving Scenes Monitor Outputs SpecificationsInputs Month Limited Warranty PowerConverters Physical