Hiding Or Showing User Interface Elements; Managing Audio - LifeSize Passport User Manual

Hiding or Showing User Interface Elements

By default, the system information, status bar, and navigation bar fade from the screen after
a call has been connected for 10 seconds. This interval resets after any interaction with the
system. You can adjust the duration of the fade out interval by adjusting the Fade Out
Timeout preference in User Preferences : Appearance. To hide or show these user
interface elements at any time during a call, press the
Note: The user interface does not hide if the system is overheating. System overheating
icons appear in the status bar. Refer to "The Main Screen" on page 6 for more
information about the system overheating icons.

Managing Audio

You can identify the video caller who is speaking in the call, adjust the volume of the audio,
and mute the active microphone.
Identifying the Dominant Speaker
When a video participant in a call is speaking, the dominant speaker icon
the display in the video image from that participant.
Adjusting Volume
To adjust the volume in a call, use the
the active microphone volume, or the treble and bass levels for audio out by adjusting
preferences in User Preferences : Audio.
Volume preferences for audio inputs appear with a bar graph audio meter next to the slider.
The audio meter expands below the slider when you select the slider and press OK on the
remote control.
The audio meter displays the level of the transmitted voice. The meter is calibrated in
decibels (dB) RMS below digital full scale (DFS). The meter is accurate to ± 1 dB.
• A level of 0 dB is the maximum.
• Levels below –50 dB are not displayed, and indicate a very quiet or inactive input.
• Typical levels during a call peak around –28 to –22 dB DFS. The AEC (Acoustic Echo
Canceller) and AGC (Automatic Gain Control) In LifeSize Passport attempt to keep the
RMS transmit level below –20 dB DFS.
LifeSize Passport User Guide
button.
button on the remote control. You can also adjust
appears in
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