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Just some fun... An Audio Primer

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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:




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My my...this thread is getting a bit steamy, isn't it? I think I'll just sidestep my way out if you'll excuse me...nudge nudge, wink wink, say no more, say no more... http://www.musicplayer.com/ubb/wink.gif
"Cisco Kid, was a friend of mine"
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