Couch co-op, a film with a friend, two people sharing one gaming PC. Getting sound into two headsets is the easy half. Getting both microphones working at the same time is where most people get stuck. This guide covers each half, plus the Windows settings that quietly break things, like the separate “communications” device.

First: what kind of headsets do you have?

  • Wired with one 3.5 mm plug (4-pole): headphones and mic share one plug, common on console-style headsets.
  • Wired with two plugs (green + pink): separate headphone and mic plugs, common on older PC headsets.
  • USB: each headset is its own sound card, with its own output and mic in Windows.
  • Bluetooth: one output and one mic. Using the mic switches the headset into low-quality call mode.

Part 1: Sound in both headsets

Two wired 3.5 mm headsets

A Y-splitter on the headphone jack shares the sound. Both headsets get the same volume, and it doesn’t solve the mics.

USB, Bluetooth or mixed headsets

Each is a separate sound device, and Windows plays to one. Stereo Mix only helps if one headset is on the PC’s own audio jack, because it can’t copy from a USB or Bluetooth headset. For two USB or Bluetooth headsets, use Voicemeeter or an app:

Part 2: Both microphones

Most apps (Discord, games, Zoom, Teams) take sound from one input device. Two ways around it:

Option A: Mix both mics into one with Voicemeeter Banana

  1. Install Voicemeeter Banana (free, donationware) from VB-Audio and restart.
  2. Set Hardware Input 1 to headset 1’s mic and Hardware Input 2 to headset 2’s mic.
  3. On both input strips, enable B1 (and turn off A1 if you don’t want to hear yourselves).
  4. In Discord or your game, choose Voicemeeter Output as the microphone.

Everyone in the call hears both of you on one account. Adjust each mic’s fader so you’re equally loud.

Option B: Two voice-chat sessions

For Discord, run the desktop app for one person and Discord in a browser for the other, each signed in to its own account and set to its own headset mic and headphones. It’s the cleanest option if you both talk a lot, because each person gets their own volume slider in the call.

Two open mics in one room pick each other up and cause echo. Use push-to-talk, or turn on noise suppression for both.

The Windows setting that trips people up: communications device

Windows has a separate default communications device used by calling apps. If voice chat comes out of the wrong headset while the game plays in the right one, open Settings → System → Sound → More sound settings → Playback (and Recording), right-click the device you want and choose Set as Default Communication Device. Or simply set the input and output inside the app itself.

Windows can also lower other sounds when it detects a call. In the same window, the Communications tab has an option to Do nothing, which stops game audio getting quieter whenever someone speaks.

Discord settings for two people on one PC

Whichever mic option you choose, check these in User Settings → Voice & Video for each Discord session:

  • Input Device: the right headset mic, or Voicemeeter Output if you’re mixing both.
  • Output Device: the right headset. If you’re sharing game audio through Voicemeeter or Two Headphones, choose the device you want voice to come out of.
  • Input Sensitivity: turn off automatic sensitivity and raise the threshold a little, so one person’s mic doesn’t open when the other speaks.
  • Echo Cancellation and Noise Suppression: on, for two mics in one room.

Use Let’s Check on that page to hear your own mic before you join a call.

Quick setup checklist

  1. Plug in or pair both headsets and confirm both appear in Settings → System → Sound (Output and Input).
  2. Pick how you’ll share the sound: splitter (two 3.5 mm), Voicemeeter, or Two Headphones.
  3. Pick how you’ll handle mics: Voicemeeter Banana mix, or two voice-chat sessions.
  4. Set the communications device and the in-app input/output so chat goes where you expect.
  5. Test with a short recording or Discord’s mic test, then adjust volumes so both of you are comfortable.

Gaming tips for two people on one PC

  • For split-screen games, both players hear the same game audio, so a shared output is exactly right.
  • If one person is on Bluetooth, delay the wired headset so footsteps and shots land at the same moment for both.
  • A volume limit on a younger player’s headset is worth setting before a long session.