# Disable or enable audio and output port volume

*Applies to: Pearl-2, Pearl Mini, Pearl Nexus, Pearl Nano*

If you're displaying a channel as the source for your video output port, audio for that channel is also encoded and sent over the port by default. You can disable the audio on the output port using the Admin panel. You can also adjust the volume of the audio on the video output port using the Admin panel. Disabling the audio on the video output port improves latency for the port.

If you're displaying a video input as the source for your video output port, you can select an audio source and adjust the volume. Audio is taken from the video input source you've selected for the video output port by default.

**Disable audio for a channel on the video output port and adjust the volume using the Admin panel**
- Log in to the Admin panel as **admin**.
- From the Output ports menu, click the output port (**HDMI 1** or **HDMI 2** on Pearl-2; **HDMI** on Pearl Mini and Pearl Nexus). The video output port configuration page opens.
- For a channel, do the following:
  - Check **Enable audio** to include audio in the output. Leave this unchecked for no audio with the video.
  - (Optional) For a channel with audio enabled, adjust the volume. Enter a value from 0 to 100 percent in the **Audio volume** field.
  - (Optional) For a channel with audio enabled, choose whether or not to display the audio meter from the **Audio meter** drop-down menu.
  - If displaying the audio meter, select horizontal or vertical from the **Audio meter orientation** drop-down menu to change the orientation of the displayed audio meter.
- For input sources, do the following:
  - Select an **Audio source** from the list.
  - (Optional) Adjust the volume. Enter a value from 0 to 100 percent in the **Audio volume** field.
  - (Optional) Choose whether or not to display the audio meter from the **Audio meter** drop down.
  - If displaying the audio meter, select horizontal or vertical from the **Audio meter orientation** drop down to change the orientation of the displayed audio meter.
- Click **Apply**.

You can also disable or enable audio on the video output port and adjust the volume using Epiphan Live.

**Device differences**
- **Pearl-2:** has two independently configurable HDMI output ports (HDMI 1, HDMI 2); the steps above apply per-port.
- **Pearl Nano:** does not support the Epiphan Live method described above — Pearl Nano has no Epiphan Live dashboard, so audio must be disabled/enabled and its volume adjusted using the Admin panel only.

> product: pearl-family · topic: audio · source: pearl-family-common.md · updated: Oct 13, 2026