Valkyrie Sound Posted March 17, 2001 Share Posted March 17, 2001 Subject: An Audio Primer > > > > > >Q: What are the different types of inputs found on mixers, desk, consoles? > >A: There are three different types of inputs on mixers. One has three > >holes and is really big (which is why it's known as an "Xtra Large > >Receptacle", or "XLR"). If you look in the back of most TVs, CDs,Tape > >decks, etc., you'll see that audio only needs two wires, so why does this > >XLR plug have three wires? Simple, it's for "professional" use, so they > >add an extra wire to carry the signal twice, as a safety precaution, just > >in case the main wire breaks. > >XLR plugs usually connect to MIC inputs ("MIC" stands for "Mixer Input > >Connection" - the primary input on a mixer). > >A smaller set of inputs called LINE ("Less Intense Noise Environment") > >inputs are used for multiple telephone "LINE" inputs (for example, radio > >call-in shows use a lot of lines), and this type of input uses "phone" > >jacks (obviously). > >A final type of input is for tape recorders and some other functions. > >These use RCA plugs ("Resistive Connector Adaptors), so called because > >they use friction, and resistance to movement, to make their solid > >connection. > > > >Q: What is gain? > >A: Gain is actually a misnomer - everything that goes into a mixer is > >already at optimum levels, so these controls really just reduce some of > >the higher levels so that they match the softer instruments. That's why > >the long sliders on a board are called "faders" - because they only make > >things softer, never louder. > > > >Q: Equalisation, what does it do, how does it work, how different types > >are there? > >A: Equalization is used for one primary reason, as its name implies - to > >make everything equal. Without some help from the EQ controls, a triangle > >could never have the bottom end of a Marshall stack. Also remember that > >EQs do nothing below their center position. It's usually recommended that > >you simply set them all to maximum and forget them. > >There are 3 fundamental types of EQs: > >Shelving: used to compensate for the shelf across the top of the console, > >Graphic: used primarily for creating landscape pictures with the sliders, > >Pairometrics: which are simply two metric equalizers (so called because > >the controls use the British metric system, very popular after the > >Beatles recordings). > > > >Q: What are Auxiliaries? > >A: Another misnomer. Everyone thinks AUX stands for "Auxiliary", when in > >reality, it's an acronym for "Any Useless Xtra" signals that must be fed > >to the mixer, like a metronome, for example. > > > >Q: What are Faders? > >A: See "Gain" above. > > > >Q: What is Routing? > >A: This is a responsibility of the bus driver in relation to mobile > >recording studios, where the driver must figure out the best route to the > >session. > > > >Q: What are Output Groups? > >A: These are used for mobile recording studios, and are known as busses, > >since their primary function is to supply signals to the buss driver and > >his friends. > > > >Q: What are Main Outputs? > >A: These supply "mains" voltage (117VAC in the US) to power other > >quipment. > > > >Q: What is Monitoring? > >A: These are TV output jacks to provide an unobstructed video view of the > >stage or group. > > > >Q: What are Meters? > >A: These are used to check the condition of each signal coming into the > >mixer. Red means the signal is "ready" to go, yellow means the signal is > >falling to a possible dangerous low level, and green "means your ass is > >grass" if you leave the signal this low. > > > >Q: What are Mix Amps? > >A: Final mixes for commercial recordings are now measured in "amps", not > >dBs. > > > >Q: What are in-line and modular desk, consoles? > >A: In-line desks have each channel stacked in line - one above the other. > >With larger consoles, this became a problem in reaching all the channels, > >so they invented the "modular" desk, where you could move the channel > >modules that you use the most closer to you. Valkyrie Sound: http://www.vsoundinc.com Now at TSUTAYA USA: http://www.tsutayausa.com Link to comment Share on other sites More sharing options...
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