POWER CORE User Manual
Version: V6.0.0/5
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23. Glossary
Headroom
The amount of operating level which is in reserve between normal operating level and
0dBFS.
High Pass Filter
See Filters.
Insert Point
A connection point within the source channel which interrupts the signal flow and
routes out to a piece of external equipment and returns back to the source channel.
Insert send = route out from the source channel to the external device.
Insert return = input to the source channel from the external device.
Limiter
A dynamics processor used to stop signals exceeding a certain threshold level. For
example, you may place a limiter across the main output of the programme to prevent
a sudden increase in level exceeding the clipping point of your transmission feed and
causing signal distortion.
Low Pass Filter
See Filters.
Mix Minus
Mix Minus, Clean Feed and N-1 are all terms used to describe a feed which is created
from a number of channels minus a particular channel or channels. For example, to
provide telephone hybrids with a feed of the programme minus the incoming phone
call.
MF Key
Multi Function Key
Programmable keys which can be used for a variety of functions as set in the
console’s configuration.
Module
On Lawo's radio on-air consoles, this term can be used to refer to the control surface
modules or the different sections of signal processing (EQ, Dynamics, etc.)
Monitor
Term used to describe the outputs and functionality of feeds to loudspeakers or
headphones for the purpose of listening to a mix.
ms
milliseconds
Unit of time measurement.
M-S
Middle and Side Stereo
Used to describe an arrangement of two coincident microphones, one pointing to the
front (Middle) and the other (bidirectional) at right angles providing a Side signal.
crystal
and
sapphire
provide M-S to X-Y decoding to turn the Middle and Side signal
into normal Left and Right stereo.
Nova17
A stand alone routing matrix with networking capabilities; the name given to the
sapphire
system unit without a control surface.
Nova29
A stand alone routing matrix with networking capabilities; the name given to the
Compact Engine without a control surface.
Nova73
A stand alone routing matrix with networking capabilities; this is a large matrix related
to the mc
2
series of Lawo consoles.
N-1
See Mix Minus.
On-Air
Term used to indicate that a radio or TV programme is being broadcast.
Overload
Occurs when the signal level is too large for the system, resulting in signal distortion.
Panning
Used to control the left/right position of a mono source when routed to a stereo or
multi-channel output. For example, if a source is panned left, the entire signal from the
source is routed to the left side of the summing bus. If a source is panned centre,
equal levels are applied to the left and right sides of the summing bus, etc.
PFL
Pre Fade Listen
Used to listen to signals before the application of fader level. Provides a way of
listening to a source when the fader is closed to check its signal before the fader is
opened to route it onto the programme output.
