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Microphone Selection

Let players pick their microphone from your options menu. The new microphone is used at once, mid-sentence included, and EPVC saves the choice, so it is back on the next launch.

The nodes

The three nodes are static. Call them from any Blueprint, a Widget Blueprint included: they need no component.

Node What it does
Get Voice Input Devices() The microphones the voice can capture from, system default first. Each entry has a Device Name and Is System Default.
Get Voice Input Device() The microphone picked with Set Voice Input Device. Empty while the voice follows the system default.
Set Voice Input Device(Device Name) Capture from this microphone. An empty name follows the system default again. Returns false when the microphone cannot be opened, and the current one stays.

They are under Proximity Voice Chat > Input Device in the node menu.

Build the selector

This uses a Combo Box (String) in your settings widget, named MicCombo here.

  1. On Event Construct, call Clear Options on MicCombo.
  2. Call Get Voice Input Devices, and Add Option on MicCombo for each entry's Device Name.
  3. Call Get Voice Input Device. If it is empty, select the entry whose Is System Default is true. Otherwise, select that name.
  4. Bind On Selection Changed on MicCombo. Ignore the event when Selection Type is Direct, that is your own step 3.
  5. Otherwise, call Set Voice Input Device with Selected Item.
  6. If it returns false, select Get Voice Input Device again and tell the player the microphone is not available.

Tip

Want a "System default" line in the list? Add it as the first option yourself, and call Set Voice Input Device with an empty name when it is picked.

How it behaves

  • The choice is for the whole game: every local player captures from the same microphone. In PIE, every window uses it.
  • EPVC saves it in GameUserSettings.ini, section [EasyProximityVoiceChat], key InputDevice. Remove the key to go back to the system default.
  • If the saved microphone is unplugged when the game starts, EPVC captures from the system default and writes a warning to the log. The saved choice stays, so the next launch uses that microphone again if it is plugged in.
  • Unreal finds the microphones when the game starts. A microphone plugged in later shows in the list, but Set Voice Input Device returns false for it until the game restarts.
  • On Mac, Unreal's voice capture always records from the input picked in the macOS Sound settings. Get Voice Input Devices returns an empty list there: hide the selector when the list is empty.

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