Extron electronics IN1804 Series User Manual page 44

• INn: Audio Format — Select this item to choose the audio format for the selected
input. The first item on the Audio menu shows the selected format of the audio.
NOTES:
• For the twisted pair inputs in DTP mode, the analog audio is taken from the
analog audio connector on the DTP Tx.
• For the TP inputs in XTP mode, the analog and Auto formats are not available.
Audio Format
Selection
None Configures input EDID with no audio support. All audio outputs are
muted.
Analog Audio Configures input EDID with no audio support. Analog audio from the
5-pole captive screw input is passed to the 5-pole captive screw analog
output and embedded into the HDMI output.
LPCM-2Ch Configures input EDID for LPCM-2Ch support. Passes all digital audio
input signals to the HDMI outputs. If LPCM-2Ch audio is present it is
also de-embedded to the 5-pole captive screw analog output.
Multi-Ch Configures input EDID for Multi-Ch support. Passes all digital audio
input signals to the HDMI outputs. If LPCM-2Ch audio is present it is
also de-embedded to the 5-pole captive screw analog output.
LPCM-2Ch Auto Configures input EDID for LPCM-2Ch support. Passes all digital audio
input signals to the HDMI outputs. If LPCM-2Ch audio is present it is
(Default)
also de-embedded to the analog 5-pole captive screw output.
If no embedded audio is present on the input the IN1804 passes analog
audio from the 5-pole captive screw input.
Multi-Ch Auto Configures input EDID for Multi-Ch support. Passes all digital audio
input signals to the HDMI outputs. If LPCM-2Ch audio is present it is
also de-embedded to the analog 5-pole captive screw output.
If no embedded audio is present on the input, the IN1804 passes
analog audio from the 5-pole captive screw input.
• INn: Analog Gain/Att — Select this item to set the analog input gain or attenuation
value for the selected input. Press Enter to select this item, then press the
button to increase or decrease the gain or attenuation in 1 dB increments. The range is
-18 dB through 24 dB. The default is 12 dB.
NOTE: For DTP2/XTP input 4 on the IN1804 DI and DI/DO, the gain is fixed at 0 dB.
Audio Output Format — Select this item to specify stereo or dual mono (Mono) for the
•
analog and embedded digital audio output. Press Enter to select this item, then press

the  or button to toggle between the two formats. The default is Stereo.
• Output Volume — Select this item to set the volume level in decibels for both the
analog and embedded digital audio outputs. Press Enter to select the item, then press

the  or button to raise or lower the volume in increments of 1 dB. The range is
0 dB through -100 dB. The default is -10 dB.
Details
IN1804 Seamless Scaling Switchers • Operation

 or
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