Screen mirroring stays silent when audio routes to the wrong output, the app blocks mirrored audio, or the TV’s HDMI audio setting doesn’t match.
Screen mirroring should feel simple: you tap one button, your display appears on the TV, and audio follows. When the picture shows up but the room stays quiet, it’s usually a routing choice your gear made without telling you.
This walkthrough helps you find where the sound is going, fix the common traps on phones and laptops, and spot the cases where silence is baked into an app’s playback rules.
Start With The Three Places Audio Can Go
Mirroring can send video and audio together, or split them. If you know the three paths below, most “no sound” cases stop feeling mysterious.
Path 1: Audio Is Still On The Phone Or Laptop
Some mirror modes keep audio local. If your device volume is low, muted, or routed to earbuds, you’ll see a perfect picture and hear nothing from the TV.
Path 2: Audio Reached The TV, But The TV Isn’t Sending It Where You Think
Smart TVs keep separate volume and output choices per input. A TV can be set to send audio to ARC/eARC, optical, or Bluetooth even when that external device is off.
Path 3: The App Won’t Output Audio While Mirroring
Many streaming apps use content protection. Some block mirroring outright. Others allow video but keep audio local, or they go silent after a few seconds.
Fast Checks Before You Touch Deeper Settings
- Raise volume in two places: your phone/laptop and the TV/receiver. Check mute on both.
- Disconnect Bluetooth audio: turn Bluetooth off for a moment or disconnect headphones and speakers.
- Switch the TV output: toggle between TV speakers and ARC/eARC, then test again.
- Restart playback: pause, then play after mirroring starts so the app rebinds to the new output.
- Restart the link: stop mirroring, wait 10 seconds, then start again. If it still fails, reboot the TV and the sending device.
Why Mirrored Audio Fails
“Screen mirroring” is a label, not one single tech. AirPlay, Cast, Miracast, and HDMI behave differently. The failures below show up across all of them.
Output Selection Gets Stuck
Your device remembers the last audio path. If you last listened through earbuds, a car stereo, or a Bluetooth speaker, the system may keep pushing audio there even after you mirror.
TV And Receiver Audio Formats Don’t Match
TVs and receivers negotiate formats. If the chain expects surround while the source sends stereo (or the other way around), you can get silence. This can appear after a firmware update or a changed TV audio mode.
Wi-Fi Drops Audio First
Wireless mirroring tries to keep picture and sound in sync. With weak Wi-Fi, some systems keep the picture and drop audio to reduce stutter.
Diagnosis Table: Match The Symptom To The Fix
Find the row that matches what you’re seeing, then use the next section for your device.
| Symptom | Most Likely Cause | What To Try |
|---|---|---|
| Video mirrors, TV volume changes, still silent | TV output set to a device that’s off | Switch to TV speakers, then back to ARC/eARC |
| Sound plays on phone/laptop only | Output stayed local | Select the TV in the output picker, restart playback |
| Sound works in YouTube, silent in paid app | App blocks mirrored audio | Use the app’s cast/AirPlay button or a streamer |
| Sound works, then drops after 10–60 seconds | Wi-Fi instability | Move closer to router, switch to 5 GHz, retry |
| Sound is delayed or out of sync | Latency and TV processing | Enable Game/Low Latency mode, reduce network load |
| No sound only through receiver/soundbar | Handshake or format mismatch | Test TV speakers, then set receiver to PCM/stereo |
| No sound after an OS update | Audio device priority changed | Re-pair, then reselect output device |
| Only system sounds mirror, app audio stays silent | Protected playback path | Use in-app casting or a different player |
Why Is My Screen Mirroring Not Playing Sound? Fix It In Order
Run these steps in order. Each one removes a common failure point without wasting time.
Step 1: Force The Correct Audio Output
Open the audio output selector and pick the TV, receiver, or streaming device. Then restart playback so the app attaches to that output.
Step 2: Set TV Audio To PCM Or Stereo For Testing
Switch the TV or receiver audio format to PCM/stereo for a test. This avoids surround negotiation problems. After sound returns, switch modes back one at a time.
Step 3: Bypass Extra Devices
If you use an HDMI switch, splitter, capture card, or receiver, connect the TV directly for a test. If sound returns, reconnect pieces one by one until the break shows up.
Step 4: Reset Pairing
Remove the TV/adapter from your device’s remembered list, then pair again. On Windows, removing and reconnecting the wireless display often clears stuck audio routing. Fix connections to wireless displays or docks in Windows.
Step 5: Separate “App Rule” From “Device Issue”
Test with a local video file or a basic web video. If that plays with sound, your setup works and the silent app is using its own playback rules.
Fixes By Device Type
iPhone And iPad
On iOS, AirPlay audio and Screen Mirroring can point to different targets. Your screen can mirror to the TV while audio stays on the phone.
- Open Control Centre: press and hold the audio tile, then tap the output icon and pick the TV.
- Check Bluetooth: disconnect AirPods or speakers, then retry.
- Restart playback: stop, then play again after mirroring starts.
If you can see the picture but can’t hear audio, Apple’s checklist starts with volume and mute on both ends, then walks through connection checks. If screen mirroring or streaming isn’t working.
Android Phones And Tablets
Android mirroring varies by brand. The fixes below cover the patterns that show up across Cast and vendor mirroring tools.
- Check Media output: in Quick Settings, open Media output and pick the TV.
- Turn Bluetooth off briefly: Android often keeps audio tied to the last Bluetooth device.
- Use in-app casting for streaming apps: if full-screen mirroring is silent, try the cast button inside the app.
- Switch TV sound mode: test with stereo/PCM, then switch back.
Windows 11 And Windows 10
Windows can mirror video while leaving audio on laptop speakers. Fix it by setting the wireless display or HDMI device as the output.
- Select the output: click the sound icon, open the output list, and choose the TV/adapter.
- Reconnect once: disconnect and reconnect the wireless display to refresh the handshake.
- Check app output: some apps let you pick output inside the app itself.
Mac
macOS keeps mirroring and audio output separate. You can mirror to a TV while audio stays on “MacBook Speakers.”
- Pick the TV as output: open Control Centre, select Sound, then choose the TV/AirPlay device.
- Try HDMI for a test: HDMI confirms whether the TV chain is fine when wireless audio drops.
Second Table: Fast Troubleshooting Flow
Follow this flow and stop when sound returns.
| Order | Action | Pass Check |
|---|---|---|
| 1 | Disconnect Bluetooth headphones/speakers | Audio routes away from Bluetooth |
| 2 | Select the TV/adapter in the output picker | Output label shows the TV/adapter name |
| 3 | Restart playback after mirroring starts | Audio begins within a few seconds |
| 4 | Switch TV output to TV speakers | You hear sound through TV speakers |
| 5 | Set TV/receiver to PCM or stereo | Sound returns even if surround is off |
| 6 | Connect directly (skip receiver/switch) | Sound returns with fewer devices |
| 7 | Forget the TV/adapter and pair again | Mirroring reconnects with sound |
| 8 | Test a local file and one streaming app | You learn if the issue is app-only |
When Silence Is Built Into The App
If sound works in free apps but not in a paid streaming app, you may be hitting content rules instead of a device bug. In that case, mirroring may never carry audio for that app on your setup.
- Use in-app casting: many services allow casting inside their player controls.
- Use a streaming device: a dedicated streamer often avoids mirroring limits for protected content.
Keep It From Coming Back
- Disconnect Bluetooth after use: it prevents your phone from auto-routing audio away from the TV.
- Keep Wi-Fi steady: put your casting devices on 5 GHz when possible.
- Keep the chain simple: fewer adapters means fewer handshakes.
- Leave TV audio format stable: once you find a mode that works with your soundbar, stick with it.
References & Sources
- Apple.“If screen mirroring or streaming isn’t working on your Apple TV.”Checks for cases where video plays but audio is missing during streaming or mirroring.
- Microsoft.“Fix connections to wireless displays or docks in Windows.”Steps to remove and reconnect a wireless display, which can clear stuck audio routing.