Instruction manual

Appendix A – DGX Configuration Software
171
Instruction Manual – Enova DGX 8/16/32 Digital Media Switchers
Files using 720p (VIC 4) as the preferred and native video resolution:
Audio Troubleshooting
If the destination device does not output the audio or if the audio is distorted, it may indicate that the
destination device does not support all of the features in the default EDID (2 channel L-PCM audio) on
the DGX HDMI Board. Some sources choose what signal types (audio and video) they are sending to a
destination based on the destination’s EDID.
If, after changing the EDID on the HDMI input, the audio remains distorted or is not present on the
destination device, then the device may not be capable of supporting the audio format you requested
with the newly loaded EDID setting.
Checking for Support
The easiest way to check whether or not a destination supports a source device’s audio signal is to
connect the source directly to the destination.
For additional information and a table showing which types of audio the different types of boards
support, see page 71.
Note: The default EDID supports 2 channel L-PCM audio so that signals routed to SC Optical
Output Boards or being inserted onto or extracted from Audio Insert/Extract Board will work without
needing to change the EDID.
Device between HDMI Output Board and Monitor
Sometimes a device (e.g., a video processor) between a DGX HDMI Output Board and the destination
monitor is intentionally installed to alter the image scale. If that is not the case and you have image
problems, you need to be aware that the scaler override function is responding to the EDID from the
extra device rather than from the monitor. One possible solution is to use the DGX Configuration
Software to read and save the EDID directly from the monitor and then apply the override values to the
output (directions follow).
To read EDID directly from monitor and apply override values to output:
1.
Remove the device between the output and the monitor.
2. Connect the output directly to the monitor.
3. Install and open the DGX Configuration Software (see page 157).
4. Select the Scaler Override tab.
5. Under EDID Source, select the Enclosure and select the Output number connected to the desired
destination from the drop-down lists.
6. Click Refresh EDID.
7. From the File menu, select Save to File and save the settings to a file.
8. Replace the device between the output and the monitor.
9. From the File menu, select Open File and open the previously saved file.
File Name EDID File
Checksum
Monitor Name Description
AMX_HDMI1_A1_720p.edid A2 AMX_0301_002 Supports audio up to 192 k for
L-PCM, 48 kHz Dolby (5.1), and
48 kHz DTS (5.1).
AMX_HDMI1_A1_720p_basicAudio.edid 92 AMX_0300_003 Supports basic audio only
(L-PCM 32 k, 44.1 k, and 48 k).
Audio Troubleshooting