Mackie DL806 and DL1608 Reference Guide
186
Glossary Of Terms Continued...
Mic Amp
— See Mic Preamp.
Mic Level
—Thetypicallevelofasignalfromamicrophone.Amiclevelsignal(usually–butnot
always – coming from a microphone) is generally lower than –30 dBu. With a very quiet source
[apindropping?]thesignalmaybe–70dBuorlower.
Some microphones, notably vintage or vintage-style condenser mics, deliver a higher signal level
thanthisforthesamesoundpressurelevel.A“hot”micoutputlevelisn’tnecessarilyameasureof
themicrophone’squality;it’sjustanoptionthatthedesigner(s)chose.
Mic Pre
— Short for Mic Preamp.
Mic Preamp
—Shortformicrophonepreamplier.Anamplierwhosejobistobringtheverylow
microphonelevelsignaluptolinelevel,orinthecaseofamicpreampbuiltintoamixer,themixer’s
internaloperatinglevel[approximately0dBu].
Mic preamps often have their own volume control, called gain, to properly set the gain for a particular
source. Setting the mic preamp gain correctly is an essential step in establishing good signal-to-noise
ratio and sucient headroom. The DL Series mixers are outtted with Onyx mic preamps.
Mixer
—Anelectronicdeviceusedtocombinevariousaudiosignalsintoacommonoutput.
Dierent from a blender, which combines various fruits and alcohol into a common libation.
Monaural
— Long for mono. Literally, pertaining to or having the use of only one ear.
In the audio eld, monaural describes a signal or system which carries audio information on a single
channelwiththeintentofreproducingitfromasinglesource.Onemicrophoneisamonosource;
manymicrophonesmixedtoonechannelisamonomix;astereo(or–tobepicky–atwo-channel)
mix of many microphones panned left and right is a stereo mix of mono sources.
Monaural listening, and therefore mono compatibility of a stereo mix, is more important than you
might realize. Most people hear television audio and clock radios in mono.
Monitor
—Insoundreinforcement,monitorspeakers[ormonitorheadphonesorin-earmonitors]are
used by performers to hear themselves. In the video and broadcast world, monitor speakers are often
called foldback speakers. In recording, the monitors speakers are those used by the engineer and
production sta to listen to the recording as it progresses. In zoology, the monitor lizard is the lizard
thatobservestheproductionstaastherecordingprogresses.Keepthelizardoutofthemixer.
Mono
— Short for monaural (and mononucleosis for that matter).
Mute Groups
— Mute groups allow you to quickly mute (and unmute) multiple channels and/or
outputs with a single tap. There are a multitude of possibilities in which to assign and enable mute
groups: productions featuring a rotating cast of musicians, theater productions, a house of worship
andmore.Itisalsogreatformutingallinputsduringsongbreaksorin-betweensets.Youmaycreate
as many as four separate mute groups with Master Fader.
Noise
—Whateveryoudon’twanttohear.Thiscouldbehum,buzzorhiss;oritcouldbecrosstalk,digital
hash,oryourneighbor’sstereo;oritcouldbewhitenoise,pinknoiseorbrownnoise.It’salsohowyour
parentsdescribeyourband.Afterall,it’swhatthey don’twanttohear.
Noise Floor
— The residual level of noise in any system. In a well-designed mixer (such as the Mackie
DL Series mixers), the noise oor will be a quiet hiss, which is the thermal noise generated by electrons
bouncing around in resistors and semiconductor junctions. The lower the noise oor and the higher the
headroom, the more usable dynamic range a system has.