WhatsApp Microphone Not Working? 8 Fixes for Voice Messages and Calls

You press and hold the microphone button, record a voice message, and send it — only to find out later that the other person hears nothing at all. Or you join a WhatsApp call and the person on the other end keeps saying they cannot hear you, even though you can hear them perfectly.

It is a frustrating problem, and it is also a confusing one. Your phone’s microphone may work fine in the regular phone app or in a voice recorder, yet fail inside WhatsApp. That usually points to a software issue: a permission that got turned off, another app holding the microphone, a stuck Bluetooth connection, or a glitch in WhatsApp itself.

The good news is that most cases are fixable in a few minutes without any tools or technical knowledge. This guide walks through eight fixes in order, starting with the simplest checks and moving toward the bigger steps. Try them one at a time, and test your microphone after each one so you know exactly which fix solved it.

First, Figure Out Where the Problem Actually Is

Before changing any settings, it helps to narrow down the fault. The fix for “nobody can hear me on calls” is not always the same as the fix for “my voice messages are silent.”

Start with a quick test. Open your phone’s built-in voice recorder app and record a short clip. If that recording is silent or muffled too, the problem is likely with your phone’s microphone hardware or a system-wide setting, not with WhatsApp specifically. If the recorder works fine but WhatsApp does not, the issue is almost certainly inside WhatsApp’s permissions or the app itself.

Next, test both sides of WhatsApp. Send yourself a voice message in a chat with a trusted friend, or use the “Message yourself” chat if you have one, and play it back. Then try a short WhatsApp call. Sometimes voice messages fail while calls work, or the other way around, and that detail tells you where to look.

Also check whether the problem happens on speakerphone, on a headset, and on a Bluetooth device. If your voice comes through on the phone’s own microphone but not on your Bluetooth earbuds, the earbuds or the Bluetooth connection are the culprit, not WhatsApp.

Fix 1: Give WhatsApp Permission to Use Your Microphone

This is the single most common cause, and it is also the easiest to fix. WhatsApp cannot record anything unless your phone has explicitly allowed it to use the microphone. Permissions can get switched off after a software update, when you reinstall the app, or simply by accident.

On Android, open Settings, then Apps, then find WhatsApp in the list. Tap Permissions, then Microphone, and make sure it is set to “Allow only while using the app” or “Allow.” If it is set to “Don’t allow,” that is your problem right there.

On iPhone, go to Settings, scroll down to WhatsApp, and check that the Microphone toggle is switched on. You can also find the same switch under Settings, then Privacy and Security, then Microphone, where every app that has requested microphone access is listed.

After changing the permission, force-close WhatsApp completely and open it again. Permissions sometimes do not take effect until the app restarts. Then record a test voice message to confirm the fix.

Fix 2: Restart Your Phone and Close Competing Apps

It sounds too simple to work, but a restart clears temporary glitches that can leave the microphone stuck in use by another app. If an app crashed while holding the microphone, or if the audio system itself froze, no setting change will help until the phone gets a fresh start.

Before restarting, close apps that might be using the microphone: voice recorders, video calling apps, voice assistants, and camera apps. On Android, you can also check which apps recently used the microphone by opening Settings, then Privacy, then Permission Manager, then Microphone. If another app is actively using it, close that app first.

Restart the phone, wait for it to fully boot up, and then open WhatsApp before opening anything else. Record a test message. If the microphone works now, a competing app or a temporary system glitch was the cause, and you may want to note which app you had open before so you can avoid the conflict in future.

Fix 3: Disconnect Bluetooth Devices and Check Your Audio Output

Bluetooth is a frequent hidden cause of WhatsApp microphone problems. When your phone is connected to wireless earbuds, a car system, or a smart speaker, it may try to use that device’s microphone instead of the phone’s own microphone. If the Bluetooth device’s microphone is faulty, muted, or out of range, the other person hears nothing.

Turn Bluetooth off entirely for a test. Go to Settings, then Bluetooth, and switch it off. Then try a WhatsApp voice message and a call using just the phone. If the microphone suddenly works, you have found the problem.

If you do want to use Bluetooth earbuds, make sure they are actually connected and charged, and check whether they have their own mute button or gesture that might be silencing you. Some earbuds mute the microphone when you take one out, or when you tap them accidentally.

Also check the basics: a thick phone case, a screen protector covering the microphone hole, or dust and lint in the microphone opening can muffle your voice badly. The main microphone is usually at the bottom edge of the phone, with a secondary one near the top or by the camera. A quick visual check and a gentle clean with a soft, dry brush can make a surprising difference. Never poke anything sharp into the microphone hole.

Fix 4: Check WhatsApp’s In-App Settings and Your Phone’s Sound Settings

WhatsApp itself has very few audio settings, but a couple of things are worth checking. First, make sure you are not accidentally muting yourself on calls. During a WhatsApp call, the mute button is easy to tap by mistake, especially if the phone is against your face. If the person cannot hear you on a call, glance at the call screen and confirm the microphone icon is not muted.

Second, check your phone’s overall sound and call settings. On Android, open Settings, then Sound, and confirm that the media and call volumes are turned up and that Do Not Disturb is not interfering with call audio. Do Not Disturb should not block your microphone, but on some phones it changes how calls behave, so it is worth ruling out.

Fix 5: Clear WhatsApp’s Cache (Without Losing Your Chats)

A corrupted cache can make WhatsApp behave strangely, including failing to pick up microphone input. Clearing the cache is safe: it removes temporary files but does not delete your chats, photos, or account.

On Android, go to Settings, then Apps, then WhatsApp, then Storage. Tap “Clear cache.” Do not tap “Clear data” or “Clear storage” on this screen — that is a much bigger step that can remove your local chat history, and you should only do it with a backup in place, as described later in this guide.

On iPhone, there is no direct cache-clearing button. Instead, you can offload the app by going to Settings, then General, then iPhone Storage, then WhatsApp, and choosing “Offload App.” This removes the app itself but keeps your data, and reinstalling it afterwards gives you a clean copy with your chats intact.

After clearing the cache or offloading, reopen WhatsApp and test the microphone again. If the problem was a corrupted temporary file, this is often the fix that finally clears it.

Fix 6: Update WhatsApp and Your Phone’s Software

Bugs happen, and microphone bugs are among the ones developers fix quickly once they are reported. If you are running an older version of WhatsApp, you may be hitting a bug that has already been fixed in a newer release.

Open your app store, search for WhatsApp, and check for an update. Install it if one is available. While you are there, check for a system update too: on Android, go to Settings, then System, then System Update; on iPhone, go to Settings, then General, then Software Update.

Software updates can also fix audio driver problems and permission bugs at the system level. After updating, restart your phone once more so the new version starts cleanly, and test a voice message.

If you are part of a beta testing program for WhatsApp, consider leaving it. Beta versions can contain unfinished features and new bugs, and switching back to the stable public release often resolves odd audio issues. You can leave a beta program from the app’s store page.

Fix 7: Back Up Your Chats, Then Reinstall WhatsApp

If none of the gentler fixes have worked, a fresh install is the next step — but it comes with an important warning. Reinstalling WhatsApp can affect your local chat history if you do not back up first, so do not skip the backup.

Before you uninstall anything, back up your chats. On Android, open WhatsApp, go to Settings, then Chats, then Chat Backup, and tap “Back Up.” On iPhone, go to WhatsApp Settings, then Chats, then Chat Backup, and tap “Back Up Now.” Wait until the backup finishes, and confirm the backup time shown on screen is recent.

Only then uninstall WhatsApp, restart your phone, and install it fresh from the official app store. When you open it, verify your phone number and restore the backup when prompted. This gives you a completely clean installation, free of any corrupted files or stuck settings that the earlier fixes could not reach.

Test the microphone before restoring, if you can, so you know whether the fresh install itself fixed the problem. Then restore your chats and test again. If the microphone works on the fresh install but breaks after restoring, a specific chat backup or media file may be involved, and repeating the process with a fresh start may be worth it.

A word of caution: never install WhatsApp from unofficial sources or modified versions. These can contain malware, steal your data, and cause exactly the kind of audio and permission problems you are trying to fix. Always use the official app store.

Fix 8: Rule Out a Hardware Problem

If you have tried everything above and the microphone still fails in every app, not just WhatsApp, the problem may be physical. Microphones can fail after water exposure, a hard drop, or gradual wear, and a blocked or damaged microphone will not be fixed by any setting.

Try a few hardware checks. Record in the voice recorder app, make a regular phone call, and try a video call in another app. If the microphone fails everywhere, hardware is the likely cause. If it fails only when you hold the phone a certain way, or only on speakerphone, a loose internal connection may be involved.

At that point, the sensible next step is to contact your phone manufacturer’s support or an authorized repair shop. Explain that the microphone fails across all apps, which points to hardware rather than software, and ask about repair options and warranty coverage. Continuing to reinstall apps will not help a hardware fault, and opening the phone yourself can void a warranty.

When the Problem Comes and Goes

Some users find that the microphone works most of the time but fails randomly. Intermittent problems are often caused by the same culprits: a Bluetooth device reconnecting at the wrong moment, an app grabbing the microphone in the background, or a phone that is running low on memory and killing background audio services.

If your problem is intermittent, pay attention to the pattern. Does it happen only when your earbuds are connected? Only after a long call? Only when several apps are open? Noting the pattern makes the cause much easier to identify, and it gives a repair technician useful information if you do need professional help.

Related Guides

If you found this guide useful, you may also want to check these related guides: WhatsApp Calls Not Ringing on Android, WhatsApp Notifications Not Showing on Android, and Android Bluetooth Not Connecting.

Frequently Asked Questions

Why can people hear me on normal calls but not on WhatsApp?

Normal phone calls and WhatsApp calls use different audio paths and different permissions. WhatsApp needs its own microphone permission, and it routes audio through the app rather than the phone system. If that permission is off, or if another app is holding the microphone, regular calls can work perfectly while WhatsApp stays silent. Checking WhatsApp’s microphone permission is the first fix to try.

Why is my voice message silent even though I recorded it?

A silent voice message usually means WhatsApp recorded without microphone access, or the recording picked up a muted or disconnected Bluetooth microphone. Check the microphone permission, turn Bluetooth off for a test, and try recording again. If the waveform in the voice message looks flat, nothing was recorded at all; if it looks normal but playback is silent, check your media volume and speaker.

Does clearing WhatsApp data delete my chats?

Clearing the cache does not delete your chats, but clearing data or storage can remove your local chat history. That is why this guide recommends clearing only the cache, and backing up your chats before any reinstall. Always confirm a recent backup exists before uninstalling WhatsApp or clearing its data.

Can a phone case really block the microphone?

Yes, it can. A case that covers the microphone hole at the bottom edge of the phone, or a build-up of dust and lint in the opening, can muffle your voice enough that the other person hears almost nothing. Remove the case for a test call, and check the microphone opening for visible blockage before assuming a software problem.

Should I factory reset my phone to fix the microphone?

A factory reset is a last resort, and it should only be considered after you have tried every fix in this guide and confirmed the problem affects all apps. A reset erases everything on the phone, so back up your photos, chats, and important files first. If the microphone fails in every app even after a reset, the fault is almost certainly hardware, and a repair is the better path.

Sources

For official guidance on WhatsApp permissions, voice messages, and calls, see the WhatsApp Help Center at WhatsApp Help Center.

For Android microphone permissions and troubleshooting steps, see Google’s Android support documentation at Android Help.