Extron electronics MediaPort 300 User Manual page 50

5 HDMI Pane (see figure 40
and mute control for audio coming through the HDMI input
from a camera with built-in microphone or a signal from an
HDMI switcher that contains audio. This panel contains
faders for providing up to 24 dB of gain or 18 dB of
attenuation to the incoming HDMI audio. At the bottom of
the panel there is a text field for entering a desired gain or
attenuation level, a Mute button, and left and right dBFS
meters for monitoring input signal level.
NOTES:
• The HDMI audio input should not be used for
microphone audio if a mic is connected to the
Mic/Line 1 input.
• The panel is unavailable (gray) if there is no audio
signal detected at the HDMI input.
6 Mic/Line 1 In and Line 2 In panes — Provide level and
7 mute controls for program audio coming from a microphone
(Mic/Line In 1 only) or other source connected to the
associated Line input, such as an iPod or other program
source. These panels contains faders for providing gain and
attenuation to the incoming signal from the Line In input.
At the bottom of the panel there are text fields for entering
desired gain or attenuation levels, Mute buttons, and dBFS
meters for monitoring input signal levels.
NOTES:
• The Mic/Line 1 In and Line 2 In panes are similar.
The differences are:
• Mic/Line 1 In has a Phantom Power button to
enable and disable 48 VDC phantom power for a
condenser microphone.
Mic/Line 1 In offers from 60 dB of gain to
•
-18 dB of attenuation.
Line 2 In offers from 24 dB of gain to -18 dB of
•
attenuation.
Mic/Line 1 In is muted by default. Enable or
•
disable Phantom Power for a connected condenser
mic while the input is muted.
MediaPort 300 HDMI and Audio to USB Scaling Bridge • Product Configuration Software
on page 41) — Provides level
* Mic/Line 1 In only
(see NOTE at left)
42