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Hear the sources without delay on the PA

Give the room's speakers and the in-ears the sources as they come, without the processing's delay.

In the room, the presenter’s voice and the PA are heard together. A PA that plays the processed sound comes 30 ms or more late, which sounds like an echo. Give it the sources before processing. See Processing.

  • Connect the PA or the in-ear system to this Mac.
  • Open Window › Audio Routing (⌥⌘A).

Click Add Bus in the toolbar. Choose Chosen Sources for the microphones only, or Everything on Program, Minus… for the whole show. See Buses.

Step 2: Hear the sources before processing

Section titled “Step 2: Hear the sources before processing”

Open the bus’s … menu and tick Hears the Sources Before Processing. The card says Before processing.

Drag from the bus’s port to the PA’s device, or tick the device under Outputs in the bus’s … menu. See Route a bus.

  • The status line under the columns adds that the bus hears the sources before the processing.
  • In the room, the voice from the PA no longer sounds doubled.

Describes Live Producer 0.330 · 10 November 2026