No Sound or Wrong Volume on a Display | easyCMS Digital Signage

Silent signage is usually deliberate, so audio problems often go unnoticed until the one screen that needs sound does not have it. There are four independent volume controls in the chain, and any one of them will silence you.

The four places volume is set

The media file itself. Does the source video actually have an audio track? Export from your editor with audio explicitly enabled, many “export for web” presets drop it.
The widget in the layout. Video widgets have their own mute and volume settings in the layout designer. Check the widget, not just the layout.
The device. Android players have a system volume, Windows players have both a system and an app mixer level, and both can be at zero independently of easyCMS.
The screen. The TV or monitor has its own volume and mute, and its own input selection. HDMI audio can be silenced at the display end while everything upstream looks correct.

Work down that list in order. If step 1 is wrong nothing else matters.

HDMI-specific causes

The screen is set to an audio input other than HDMI. Common on commercial displays that ship configured for a speaker system.
The cable or splitter drops audio. Cheap HDMI switches and long unamplified runs can carry picture without sound. Test with a short known-good cable.
The player is outputting to the wrong device. On Windows, check the default playback device is the screen and not a phantom audio adapter.

Android specifics

Android players expose volume in the player settings on the device, and the system volume applies on top. If audio works in the device’s own browser or media app but not in easyCMS, the player’s own volume is the thing to check.

Windows specifics

Check the Windows volume mixer while the player is running, the player app gets its own slider, which can be muted independently of the master volume. If the player runs as a service or under a different user account, mixer settings you made as your own user may not apply.

LG webOS and other smart TVs

Smart-TV players use the TV’s own audio path. Confirm the TV is not in a mode that mutes internal speakers (some commercial modes default to line-out only), and that no external sound bar is selected as the audio sink.

Sound plays on the wrong screen or too loud at night

There is no per-hour volume control in the layout designer. Two practical patterns:

Schedule different layouts for different times of day, with the video widget volume set differently in each.
Use the display’s scheduled commands to change the device volume at fixed times, where the platform supports it.

For a network where sound matters, standardise on one player model and one screen model, mixed hardware makes audio behaviour almost impossible to keep consistent.