The Complete Wiki to Discord Echo Cancellation
Your second monitor just got quieter.
Discord now tries to remove far more than call audio from your mic.
Here is what changed, who notices it, and how to take control.
⚡ Quick Summary
Discord shipped system wide echo cancellation on Windows. It now tries to filter background PC audio out of your mic feed, not just call audio. You can switch it off if you want friends to hear your system sounds.
🧭 On This Page
What Changed
Echo cancellation used to focus only on audio from Discord calls. Nothing else playing on your PC was accounted for.
Now Discord attempts to remove a much broader set of sounds. The goal is simple. Friends should stop complaining about hearing the video playing on your second monitor.
The change appears in Discord's September 8, 2026 patch notes as a recent Windows shipment. The notes also warn that fixes may still be rolling out to individual platforms.
The September 25 changelog repeated the news and encouraged users to turn it off if they want others to hear everything.
Key fact: The update covers Windows clients, and Discord says you can switch it off.
How It Works
Echo cancellation spots sound that was played on your side and then reappears in your mic. It then strips that sound out before your voice is sent.
🔊 Quick Flow
🔊 1. Your PC plays sound from calls, games, videos and apps
↓
🎙️ 2. Your mic picks up some of it
↓
🧠 3. Discord matches the sound to what your PC played
↓
✂️ 4. It removes that sound before sending your voice
Before the update, only Discord call audio was on the list. Now other PC audio counts too.
Who Notices the Difference
| Situation | What Likely Happens | What to Do |
|---|---|---|
| Video playing on a second monitor | Friends hear it far less | Nothing, this is the goal |
| Game or app sounds you want friends to hear | They may be reduced or removed | Turn echo cancellation off |
| Music playing through speakers | Likely filtered from your mic | Turn it off, or use headphones |
| Headphones on, quiet room | Little change | Leave it on |
Streamers and creators who rely on shared sound should test carefully. Discord has not said how the change affects every audio feature, so a quick call with a friend is the safest check.
Settings and Controls
Discord says the feature can be disabled, but its notes do not spell out the menu path.
The long standing Echo Cancellation toggle in Voice & Video is the place to check first. Menu names can shift between app versions.
⚙️ Quick Steps
⚙️ 1. Open User Settings in Discord
↓
🎧 2. Go to Voice & Video
↓
🔄 3. Find the Echo Cancellation toggle
↓
🧪 4. Switch it off, then test with a friend
Troubleshooting
Friends Still Hear Echo
Headphones are the most reliable fix, since they stop speaker sound from reaching your mic.
One troubleshooting guide says the Audio Subsystem should be set to Standard, because the Legacy option can bypass modern echo cancellation. It also suggests disabling Stereo Mix in Windows Sound settings.
Friends Cannot Hear My Game or Music
Turn echo cancellation off, then retest. This is the behavior Discord describes in its own notes.
My Voice Sounds Odd
Discord layers several processing tools, including noise suppression, echo cancellation and automatic gain control. Each one can change your sound.
Noise suppression and echo cancellation are separate settings. Toggle them one at a time to find the culprit.
For official details, read Discord's September 8 patch notes and Outlook Respawn's changelog report. If you want to compare settings with other users, you can browse tech and gaming communities on discords.ai.
FAQ
Does this affect Mac or mobile?
Discord described it as a Windows clients feature, so Mac and mobile were not part of the announcement.
Can I turn it off?
Yes. Discord says you can disable it if you want others to hear your system audio.
Comments
Sign in to join the conversation
Sign inNo comments yet
Be the first to share your thoughts!