How to Fix Signal Video Call No Sound

If you’ve ever jumped on a Signal video call only to find there’s no sound—either you can’t hear the other person or they can’t hear you—you’re not alone. It’s a frustrating hiccup, but luckily, there are several practical fixes that can get your Signal video calls sounding crystal clear again. Having used Signal daily, I’ve picked up some handy tips beyond the basics, so let’s dive into how to fix Signal video call no sound for good.

Why Is There No Sound on Signal Video Calls?

Before we jump into fixes, it helps to understand why sound issues happen during Signal video calls. Signal is designed with privacy and encryption in mind (you can check out the official features on signal.org), but that also means it relies heavily on your device’s hardware and permissions to handle audio properly.

Common causes include:

Microphone or speaker permissions not granted
Conflicts with other apps using your mic or audio output
Muted audio settings inside Signal or on your device
Bluetooth devices interfering or audio routed incorrectly
Temporary software glitches or bugs

With that in mind, here are some practical ways you can fix the no sound issue on Signal video calls.

Step-by-Step Fixes for Signal Video Call No Sound

1. Check Signal’s Microphone and Speaker Permissions

This one’s often overlooked. If Signal doesn’t have permission to use your microphone or speakers, you’ll get silence.

Go to your device’s Settings.
Find “Apps” or “Applications” and select Signal.
Tap “Permissions.”
Make sure “Microphone” and “Speaker” (or “Audio”) permissions are enabled.

On Android, this is usually straightforward. On iPhone, check under Settings > Signal > Microphone.

2. Toggle Mute and Volume Settings Inside the Call

Sometimes the issue is as simple as the mute button being on. I’ve lost a few calls myself because I accidentally hit mute.

During the video call, look for the microphone icon and ensure it’s not muted.
Also check your phone’s volume slider, sometimes media volume is turned down or off.

Pro tip: On some devices, the volume buttons adjust call volume separately from media volume, so test both during a call.

3. Restart Signal and Your Device

It’s the classic “turn it off and on again,” but it works more often than you’d think.

Close the Signal app completely (don’t just minimize it).
Restart your phone to clear any audio conflicts.
Open Signal again and try the video call.

This can clear software bugs or stuck audio processes that cause no sound.

4. Check Audio Routing and Bluetooth Devices

If you’re using Bluetooth headphones or a speaker, the audio might be routed incorrectly.

Make sure your Bluetooth device is properly connected.
If you want to use your phone’s built-in speaker, disconnect Bluetooth temporarily.
On some Android phones, you can swipe down for quick settings and toggle Bluetooth off/on.

Sometimes, Signal will keep sending audio to a previously connected device even if it’s disconnected—a minor but annoying quirk.

5. Update Signal to the Latest Version

Signal regularly releases updates that fix bugs and improve performance.

Go to the App Store (iPhone) or Google Play Store (Android).
Search for Signal and check if an update is available.
Install updates and restart the app.

I’ve found that keeping Signal updated prevents weird glitches, including audio problems.

6. Clear Signal Cache (Android Only)

For Android users, sometimes cached data can get corrupted and cause issues.

Go to your device Settings > Apps > Signal.
Tap “Storage & cache.”
Hit “Clear cache” (don’t hit Clear Data unless you want to reset everything).
Reopen Signal and try a video call again.

7. Reinstall Signal as a Last Resort

If nothing else works, uninstalling and reinstalling Signal can often clear hidden issues.

Backup your Signal messages if you want to keep them (see instructions on signal.org).
Uninstall Signal from your device.
Restart the device.
Download Signal again from the official app store.
Set it up and test a video call.

It’s a bit of a hassle, but it’s saved me when weird bugs popped up after updates.

Extra Tips and Things I Wish I Knew Earlier

Test your mic with other apps: Use the default voice recorder or any other app to check if your mic works outside Signal. This helps isolate if the problem is Signal or your device.
Use headphones during calls: Sometimes your phone’s speaker or mic can be glitchy. Plugging in headphones can improve audio quality and help troubleshoot sound issues.
Signal’s “Privacy Screen” feature: Occasionally, enabling Privacy Screen causes weird UI glitches that affect calls. Try toggling this off in Signal’s settings to test.
Check network quality: Poor internet can cause audio dropouts mistaken for no sound. Switching between Wi-Fi and mobile data can clarify if it’s the network causing problems.

Wrapping Up: What to Do Next If You Still Have No Sound

Signal video call no sound issues are almost always fixable by checking permissions, toggling mute, restarting apps or devices, and verifying audio routing. If you’ve tried everything above and still can

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