1 March, 2005
V1682OPMA.doc
Page 21 of 32
data is already embedded, it may be removed by setting
ENG’ING > Anc Data
to ‘
blank
’, see Sec.
6.3 for more details.
If the selected multiplex group is already occupied, no audio will be embedded, and the input group
will be passed through. The groups which are occupied on the input SDI can be checked in the
STATUS > I/P Groups
menu (see Sec. 7.5).
Audio may be embedded in either basic 20 bit form or in extended 24 bit form. The embedding
resolution can be controlled in the
ENG’ING > Aud Bits menu
, in which the options are 20 or 24 bit.
All internal audio processing is done in 24 bit form.
5.4 MUTE
Audio coming from the selected audio input may be muted using the
AUDIO > Mute
control, which
has the options ‘
Pass
’ and ‘
Mute
’, the former being the default. When set to ‘Mute’ all audio from
the selected audio input will be muted, including to the measurement systems. This will cause all
measurements on the audio to cease, on-screen ppms to fall to zero, and delay measurements to
stop.
