Add an audio source to a layout

You can add multiple audio sources to the layouts for a channel using the Admin panel. By default, audio is enabled for the channel on the channel's encoding page.

Each layout can have the same audio sources in them or you can choose different audio sources. An audio source has the same gain no matter how may layouts the audio source is added to, or if you've added just the one audio source or several audio sources to the same layout.

Important considerations

  • For NDI, SRT and RTSP input sources, there's no need to manually add the audio sources separately to your channel. When the network stream is connected to your Pearl-2 as an input source, a corresponding audio source is automatically added to the list of audio sources for your channels, even if there is no audio in the stream.
  • The XLR-B audio inputs and the RCA audio inputs are linked within Pearl-2. If you use both at the same time, their audio is mixed. If the two audio sources share the same audio signals, the common audio signals are amplified. To avoid this, you can disable one or the other audio port, see Assign audio sources to an input.
  • If a channel is selected as the video source for a layout, the corresponding audio for that channel is added automatically.
  • You can add multiple audio sources to the same layout. However, if the two audio sources share all or some of the same audio signals, then the common audio signals are amplified.
  • Selecting multiple loud audio sources in the same layout may cause audio clipping on that layout. Before going live, always check the volume levels for the layout and adjust the volumes at audio sources to avoid clipping, see Adjust audio gain and delay.
  • If audio encoding is not configured for a channel, no audio signal is processed or sent with the video content when recording, streaming, or confidence monitoring, see Configure audio encoding.
  • If an audio source is added to a layout and then the audio device is disconnected from the input port on Pearl-2, some residual noise may be detected in the layout. Remove the audio source from the layout.

Add an audio source to a layout using the Admin panel

  1. Login to the Admin panel as admin, see Connect to Admin panel.
  1. From the Channels menu, select the channel and click Layouts. The custom layout editor opens.
  2. In the Layouts list that appears at the top of the page, click a layout's row to select that layout.
  3. Check the audio source that you want to use for the layout and click Save.

What's Next

You can check the audio encoding settings for your channel and ensure that audio is enabled, see Configure encoding.

To adjust the gain for an audio input source, see Adjust audio gain and delay.