MicTester

Hear your Discord mic the way the voice channel will

Record a few seconds and play it straight back, with the same three pieces of processing Discord applies by default. If it sounds right here and wrong in Discord, the fault is a setting in the client — and the exact panel is listed below.

Sample trace

A drawing, not a recording — nothing here came from a microphone yet.

Spectrum

low → high frequency

Level (dBFS)

Peak -12.3|RMS -21.3|Hold −∞

−50−20−9−0.5−600

Reading: On target — that is the sample trace’s own peak, not yours.

Before the browser asks

  • · Your browser will ask for permission. Nothing happens until you allow it.
  • · The page then reads three things: the waveform, how loud you are, and the device list.
  • · No recording starts on its own. The recorder has its own button below.
  • · Audio is processed in this tab and never uploaded — there is no server to upload it to.
  • · Discord applies noise suppression, echo cancellation and gain control by default, so the clip you play back here is close to what a voice channel hears.

The two-minute Discord check

Discord problems fall into two piles, and they need opposite fixes. The first pile is nothing arrives: your friends hear silence, the green ring never appears around your avatar. The second is something arrives and it is bad: you are quiet, robotic, cutting out, or accompanied by a fan. Playing a clip back on this page sorts them in about ninety seconds, because it removes Discord from the chain entirely.

If the recorder above captures your voice and plays it back cleanly, your microphone, your cable, your operating system and your browser are all fine. Whatever is wrong is inside the Discord client, and there are only about six settings it can be. If the recorder captures nothing, stop reading about Discord — the problem is upstream, and the Windows 11 microphone page takes it from there.

Every microphone control in Discord, and what it maps to

The path is User Settings (the cogwheel in the lower-left corner) → Voice & Video → the Voice section. The table lists each control by the name Discord’s own documentation uses, and — where one exists — the browser constraint that does the equivalent job, so you can reproduce the setting on this page before you change it in the client.

Control names and locations taken from Discord Help Center, “Mic Testing” (article 360020641332, last edited 2025-03-25); Discord Help Center, “Discord Voice and Video Troubleshooting Guide” (article 360045138471, last edited 2025-07-02); Discord Help Center, “Where’d my Audio Input go? (+ Various Voice Issues)” (article 214925018, last edited 2025-03-25). Checked on 2026-08-15. Menus move: if a label here does not match your client, search the client’s settings for the control name rather than the path. Discord documents its Mic Test for the desktop and browser clients only — the Mic Testing article says so outright. The troubleshooting guide does go wider than that, carrying its own mobile sections for iOS and Android, but no mobile mic test appears in any of them, so nothing on this page claims one.
Control Where What it does Browser equivalent
Input Device Voice & Video → Voice Chooses which microphone Discord opens. deviceId
Input Volume Voice & Video → Voice Scales the captured signal before it is sent. none
Mic Test → Let’s Check Voice & Video → Voice Plays your voice back through the selected output device. Discord’s own article notes it is desktop and browser only, and that running it while connected to a voice channel mutes and deafens you until the test ends. none
Input Mode: Voice Activity or Push to Talk Voice & Video → Voice Decides whether the microphone opens on sound or on a key. Silence in a call with a working mic is very often this. none
Noise Suppression Voice & Video → Voice Discord’s troubleshooting guide names this as Krisp noise suppression and lists disabling it as an advanced step when audio quality is poor. noiseSuppression
Audio Subsystem: Standard or Legacy Voice & Video, at the bottom Switches the capture backend. Both Discord articles reach for this when a microphone is not detected at all. none
Reset Voice and Video Settings Voice & Video → Debugging Puts every control above back to default in one action. none

Silence, in order of likelihood

1. You are muted in a way you did not do

Discord’s guide puts this first for a reason. A slash through the mic or headset icon means voice is disabled, and a server administrator can apply that at the server level — in which case no amount of device fiddling will help and you need an admin to lift it. Before that, check the channel permissions: Connect lets you join a voice channel and Speak is a separate permission that enables your microphone in it. A role can grant one and withhold the other.

2. Input Mode is Push to Talk

The single most common self-inflicted silence. Voice Activity opens the microphone when you make noise; Push to Talk opens it only while a key is held. Someone who set a keybind six months ago and then rebound that key in a game will be inaudible with a perfectly working microphone. Discord’s troubleshooting guide lists verifying the Input Mode before it lists anything about devices.

3. The wrong Input Device

Laptops make this easy: the lid array and a headset boom both appear, and Windows changes the default when you plug something in. Use the Input device tab on this page to see the exact device names your browser reports, then pick the matching entry in Discord’s Input Device dropdown. The names are the same because they come from the same operating system.

4. Discord cannot see the device at all

If the dropdown is empty or the device is missing while this page lists it, that is the case for the Audio Subsystem switch at the bottom of Voice & Video. Both Discord articles that deal with a missing microphone end up there, and the accompanying advice is to disable Quality of Service high packet priority at the same time.

Bad audio, and the setting behind each symptom

  • The first word of every sentence is missing. Voice Activity’s threshold is set above your normal speech, so the gate opens late. Speak up, move closer, or lower the sensitivity.
  • You sound underwater or clipped when quiet. Noise suppression. Toggle it here to hear the same effect, then turn Discord’s off.
  • Your volume swells and fades. Gain control chasing a changing room. Turn the automatic gain switch off on this page — if the swelling stops, that is your culprit.
  • Everyone hears themselves echoing back through you. You are on speakers with echo cancellation off or overwhelmed. A headset ends it at the source, because your speakers stop feeding the microphone at all; the headset mic test checks that the headset is the device actually in use.
  • You are simply too quiet. Raise the gain at the device before you touch Input Volume in the client — why that order matters.

A headset Discord could not find

A common shape, and one this page resolves quickly. Someone plugs in a USB headset, joins a voice channel and is inaudible. On this page they press start, the waveform moves, the recorder plays their voice back clearly, and the Input device tab lists the headset with a groupId shared by its earpieces. That is proof the whole chain up to the browser works.

So the fault is inside Discord, and the table above narrows it: device selected but silent points at Input Mode or a server mute; device absent from the dropdown points at the Audio Subsystem switch. Neither of those would ever have been found by unplugging the headset and trying another cable, which is what most of an hour usually goes on.

FAQ

Discord mic questions

My mic works here but my friends still hear nothing in Discord. Where do I look?

In that order: are you server-muted (a slash through the mic icon that you cannot clear yourself), is Input Mode set to Push to Talk with a key you have forgotten, and is Input Device pointing at the microphone you are actually speaking into? All three live in the same panel, and Discord’s own troubleshooting guide starts with mute state and channel permissions before it touches devices — Connect and Speak are separate permissions a server can withhold.

What does Discord’s Noise Suppression actually do to my voice?

Discord’s troubleshooting guide names it as Krisp noise suppression and lists disabling it as an advanced step when audio quality is poor — which tells you the failure mode. A suppressor decides which parts of the signal are not speech, and when it decides wrongly it clips the front of quiet words. Toggle noise suppression on this page while talking softly: if words reappear with it off, that is the same effect you are hearing in a voice channel.

Why does Discord mute and deafen me when I run its own Mic Test?

That is documented behaviour, not a bug. Discord’s Mic Testing article states that testing while connected to a voice channel mutes and deafens you, and that you cannot talk in the channel again until the test finishes. It stops your test playback being broadcast to everyone. This page has no such problem, because it is not connected to anything.

What is the Audio Subsystem setting and should I touch it?

It selects which capture backend the desktop client uses, Standard or Legacy. Both of Discord’s microphone-not-detected articles reach for it, and it is worth trying precisely when the device is invisible to Discord but visible everywhere else — including on this page. If your mic draws a waveform here and Discord claims it does not exist, the subsystem switch is the highest-value thing to try.

Is there a mic test in the Discord mobile app?

Not according to Discord’s own article, which states plainly that the Mic Test feature is desktop and browser only. On a phone your options are a call with a friend or a browser-based check like this page, which works in mobile browsers as long as the browser is allowed microphone access.

Should I match my browser settings to Discord’s before testing?

This page already does. It opens with echo cancellation, noise suppression and gain control all on, because that is the shape of Discord’s defaults — the clip you play back is close to what a voice channel receives. Turn them off one at a time if you want to hear your raw microphone instead.

More from MicTester

When Discord turns out not to be the broken part

  • the full mic test with every switch on one page — waveform, spectrum, dBFS meter, recorder and device picker together, with all three processing toggles exposed.
  • mic test for Zoom meetings — Watch your input level the way Zoom’s Input volume bar moves, with automatic gain left on so you can see it ride.
  • mic test for Microsoft Teams — Opens on the device picker, because Teams asks you to choose a primary device, a speaker and a microphone separately and the wrong one is the usual culprit.
  • Keyboard Tester — The same idea for the other input device: press a key, watch it light up, and see the exact event your browser received.
  • Click Speed Test — Counts clicks per second against the browser’s own timestamps, so the deadline holds even when the frame rate does not.