Extron electronics DSC 301 HD User Manual page 23

Input AFL — Select this option (see
Extron Accu-Rate Frame Lock (AFL) on or off.
When enabled, this mode locks the output vertical refresh rate to the vertical refresh rate
of the currently selected input using Accu-Rate Frame Lock technology. This ensures
no frames of the input are repeated or dropped due to frame rate conversion. Input AFL
mode causes glitches, interruptions, or both in the output sync when a new input is
selected, or when a new signal has been routed to the selected input, as the DSC 301 HD
locks to the new vertical refresh rate.
If no input signal is detected (AFL is disabled), or if locking to the input signal is not
possible, a free running pixel clock is generated by the DSC 301 HD.
Audio submenu
This submenu allows the user to configure the audio (see figure 10).
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Figure 10. OSD Menu — Audio Submenu
NOTES:
• Multiple video inputs can share a single TRS audio input (see the
an audio setup on the next page).
• HDMI input 3 can be set to use any analog TRS input, or to embedded digital,
or to automatically use embedded digital audio when present or when not use
analog TRS 3.
Audio Mute — Select this option (
Input x : Audio Format — Select this option (
Choices are:
Audio Input Format
None Mutes all audio for selected input
Analog TRS 1 Sets selected input to analog TRS 1 (default for input 1)
Analog TRS 2 Sets selected input to analog TRS 2 (default for input 2)
Analog TRS 3 Sets selected input to analog TRS 3
LPCM-2Ch Digital Sets selected input to 2Ch digital audio (default for input 3)
Multi-Ch Digital Sets selected input to Multi-Ch digital audio
LPCM-2Ch Auto (TRS 3) Sets selected input to use 2Ch digital audio (when present),
else use analog TRS 3
Multi-Ch Auto (TRS 3) Sets selected input to use Multi-Ch digital audio
(when present), else use analog TRS 3
figure 8, , on the previous page) to turn the
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) to turn global audio mute on or off
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) to select the audio input format.
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Details
DSC 301 HD • Operation
example of
Inputs
All
All
All
All
Input 3 only
Input 3 only
Input 3 only
Input 3 only
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