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USER GUIDE
USER GUIDE
USER GUIDE
USER GUIDE
USER GUIDE
phase
a term used to describe the relationship of two audio signals. In-
phase signals reinforce each other, out-of-phase signals result in
cancellation. Phase is a measurement of relative displacement
between two waves of identical frequency.
polarity
a term used to describe the orientation of the positive and
negative poles of an audio connection. Normally connections are
made with positive to positive, negative to negative. If this is
reversed, the result will be out-of-phase signals (see ‘phase’
above).
post-fade
the point in the signal path after the monitor or master fader and
therefore affected by fader position.
pre-fade
the point in the signal path before the monitor or master fader
position and therefore unaffected by the fader position.
rolloff
a fall in gain at the extremes of the frequency response.
shelving
an equaliser response affecting all frequencies above or below
the break frequency i.e. a highpass or lowpass derived response.
spill
acoustic interference from other sources.
transient
a momentary rise in the signal level.
unbalanced
a method of audio connection which uses a single wire and the
cable screen as the signal return. This method does not provide
the noise immunity of a balanced input (see above).
+48V
the phantom power supply, available at the channel mic inputs,
for condenser microphones and active DI boxes.
