Rane ECS RaneWare - Manual (Page 11)

RW Manual-11
Near Signal Offset signal flow
Query the ECB 62e for the Master Port OPSTAT param-
eter to decide which video feed to switch to. (A preposition is
the wrong thing to end a sentence with.)
Typical default value: 0.35 seconds or more.
Master Mic Delay
This adjustable timer controls the speed at which a Mic
becomes the new Master Mic.
The Master Mic indicates which Last On Mic most
recently detected audio — thus indicating “who” is talking.
There are two reasons this Smart Last On™ Master Mic
idea is patented by Rane:
#1. Unlike most auto mic mixers, Smart Last On uses the
Master Mic Delay to avoid the problem of the current talker’s
Mic Gating Off when others answer or interrupt.
For example, if the chairman is talking and someone else
sneezes, Smart Last On allows the sneeze to be heard, but the
chairman’s Mic will not Gate Off. The chairman’s Mic will
remain the Last On Mic. Other mic mixer’s “last on” may
gate the chairman’s Mic off (particularly if the chairman
pauses) and the sneeze Mic will become the Last On Mic.
This is bad because the chairman must re-gate his Mic on. All
the while, the acoustic echo canceller has been trying to re-
adapt to the quickly changing Mic gates. Also, the camera
may be switching between the sneezer and the chairman.
Smart Last On avoids this problem by forcing the sneezer
to exceed the (adjustable) Master Mic Delay time. Only then
will the chairman’s Mic Gate Off due to the sneezer’s Mic
becoming the Master Mic. Gesundheit!
#2. (Cool stuff.) Master Mic is also extremely useful in
video-follows-audio applications when you need to move the
Program Signal Offset signal flow
camera position to follow “who” is talking. The Master Mic
Delay timer can be adjusted to times beyond the time required
to reply “yes,” or to cough, or shuffle papers. This avoids the
problem of the camera switching over to someone who is
blowing their schnoz.
With the room controller, query the ECB 62e for the
Master Mic OPSTAT parameter to switch to the correct
camera position.
Typical default value: 0.35 seconds or more.
Port Sig Release
Once audio is no longer detected at any Port Input, the
Port indicator shuts off after the Port Signal Release time
has elapsed. This timer is useful in multipoint
videoconferencing when you wish to switch the video back to
a default video location/picture after conversation pauses.
Typical default value: 0.35 seconds or more.
Mic Sig Release
Once audio is no longer detected at any Mic, the Mic
indicator shuts off after the Mic Signal Release time has
elapsed. This timer is useful in video-follows-audio applica-
tions when you wish to switch the camera back to a default
location after conversation pauses.
The Mic Signal Release also affects the time between
when people stop talking and when the various Gates (Mixer
Gate, Noise Gate, Mic Gates, Mixer Suppression and Port 1
Suppression) turn on or off. Adjusting the
Mic Signal
Release time can help the psychological timing and comfort
for talkers.
Typical default value: 0.35 seconds or more.