Microphone echoing on calls
Echo has a counterintuitive rule: the person who hears the echo is almost never the one causing it. You hear your own voice back because someone else's speakers are playing you and their microphone is feeding it right back. Figure out whose setup is looping first — then apply the fix on that side.
Step-by-step fix
- Identify the source. If you hear your own voice, the loop is on another participant's side (their speakers → their mic). If others hear themselves, the loop is yours. Echo that appears when one specific person joins? It's that person.
- Headphones are the definitive fix. When call audio goes to headphones, it physically can't reach the microphone. Get the echo-source to plug in any earbuds — this ends speaker-to-mic bleed instantly and beats every software trick below.
- Kill the monitoring loop on Windows: Control Panel → Sound → Recording → your mic → Properties → Listen tab → untick "Listen to this device". That setting plays your mic through your own speakers with a delay — a self-echo that happens even with nobody else on the call.
- Check app-level monitoring too: OBS's "Monitor and Output" audio setting, Voicemeeter routing, and mixer/GoXLR-style software can all feed the mic back to your output. Disable mic monitoring in those while you're on calls.
- If speakers are unavoidable, make the bleed small: lower the speaker volume, move speakers away from (and never pointing at) the mic, and reduce mic gain. Then let the app's echo cancellation do its job — it's built into Meet and Zoom, and Discord has an explicit Echo Cancellation toggle under Voice & Video.
- One room, two devices: if two people join the same meeting from the same room — or you joined from laptop and phone at once — mute every mic and speaker except one set. This is the classic conference-room echo.
- Verify with a recording: run the CheckMyMic microphone test, play music from your speakers while recording, and play the clip back. Hearing the music clearly means your mic still picks up your speakers — and headphones (or less volume) are the answer.
Frequently asked questions
I hear my own voice echoed back — isn't that my mic's fault?
Almost never. Your voice reaches the other person's speakers, their mic picks it up, and it comes back to you — the loop is entirely on their side. Ask whoever is not using headphones to plug some in or mute while not speaking; if the echo stops when a specific person mutes, you've found the source.
How do I stop echo without wearing headphones?
Rely on echo cancellation and starve the loop: keep speaker volume low, put distance between speakers and mic, reduce mic gain, and enable the app's echo cancellation (Discord: Voice & Video; Zoom and Meet have it on by default). Push-to-talk or muting while listening also breaks the loop completely.
What is "Listen to this device" and why does it cause echo?
It's a Windows monitoring feature that pipes the mic's input straight to your output so you can hear yourself. Through speakers it creates a delayed feedback loop — echo, and at higher volume a shriek. Untick it (mic Properties → Listen tab) unless you're deliberately monitoring through closed headphones.
I've tried everything and calls still echo — what now?
In the meeting, mute participants one at a time until the echo dies — that's the looping setup, and the fix (headphones, lower speakers) belongs there. Check nobody is joined twice from the same room, and record the speaker-music test in the CheckMyMic mic test to measure your own bleed. Our Zoom and Discord mic guides cover their per-app audio processing settings.