Calrec SUMMA User Manual page 188

A
Access Mode
An operating mode of the surface. When a fader or path is accessed (by pressing its ACCESS button) all control cells
correspond to the accessed path, rather than the faders below them.
Accessed Path
When a path is accessed (by pressing its ACCESS button) certain functionality routing processing etc. - becomes
available to it, from both the touch screen and the surface control cell
Active Show View
With the Touch Display in Active Show view all operational screens, controls and settings are available from I/O patching
to processing and routing.
ADC (Analogue to Digital Conversion)
The process by which continuous analogue signals are sampled and converted into discrete digital representations.
The frequency of samples in the resultant digital signal is determined by the Sample Rate of the system (e.g. 48kHz).
The dynamic range of the sampled signal is dependant on the wordlength (e.g. 24bit).
AFL
After-Fade Listen. Allows the user to hear only the selected channels after they have been affected by fader position, pan
position and channel processing. Multiple AFL signals can be sent to the AFL bus. AFL does not affect the main outputs,
so can be seen as being similar to 'safe solo'.
APFL
A bus that combines both AFL and PFL signals. This removes the need to have separate loud- speakers and meters for
monitoring AFL and PFL signals.
Auto Minus Bus
A dedicated bus used for simple yet powerful creation of mix minus feeds. A unique mix is created for each recipient
which consists of the whole Auto Minus bus, minus their own contribution. The Auto Minus bus can be used to feed
individual channel/group's Mix Minus outputs.
Aux (Auxiliary)
An Aux is a bus to which signals can be sent and grouped. The send for the originating channel may be pre or post
fade. Auxs can be patched to output ports and can be controlled by certain logic functions such as pre-send cut when
originating channel is cut, pre-send cut when originating channel fader is closed and Bird Beater.
B
Bluefin2
The current generation of Calrec's High Density Signal Processing (HDSP) system. Capable of over 1000 input channel
paths from just a single card.
Bus
A path in which multiple signals can be combined. A bus is the general term and can refer to a number of path types
including Group, Aux, Track, Main, Mix Minus, AFL, PFL.
188 SUMMA TERMINOLOGY
Networked Audio Production System