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[Solved] Why Is There No Audio When Screen Mirroring?
Is your screen mirroring working perfectly, except for the sound? Frustrated because your movie nights, presentations, or family photo displays are missing that essential audio punch? Well, don't sweat it, as our guide will help you kick that silence to the curb.
We're diving into simple, step-by-step fixes to get your audio back on track so that your screen mirroring experience is as engaging as it should be. Let's jump right in and bring the sound back to your setup!
Causes of Sound Issues While Screen Mirroring (And How to Fix Them)
If you’ve set up screen mirroring, and everything looks great, except for sound, here are the most common reasons why this happens and how to fix them.
🔧 First-Step Checks (All Devices)
- ✅ Confirm device volume isn’t muted
- ✅ Disconnect Bluetooth headphones/speakers
- ✅ Try basic restart (phone + TV)
1Device Mute or Audio Setting Error
Let’s start with the simplest (and surprisingly common) issue. Your device might be muted.
Sometimes, the volume on your phone, tablet, or TV is set to zero, or the audio output is switched to another device (like Bluetooth headphones).
Here’s how to fix it:
- Step 1.Check the volume: Press the Volume Up button on both your phone and TV.
- Step 2.Switch audio output: If your phone is connected to Bluetooth or external speakers, switch it back to the TV.
- Step 3.Check TV sound settings: Navigate to your TV’s Audio Settings and ensure internal speakers are enabled.
2Audio Output or Format Incompatibility
Not all devices support the same audio formats, and this mismatch can lead to sound issues.
Some TVs or streaming devices don’t support certain audio formats, such as Dolby Atmos or DTS, which can cause silence during screen mirroring.
| Format | Samsung | Sony | LG |
|---|---|---|---|
| Dolby Atmos | 2018+ models | HDMI only | Not supported |
| PCM Stereo | All | All | All |
To fix this issue:
- Step 1.Switch audio format: On your source device (phone/laptop), go to Audio Settings and try changing to a more compatible format like Stereo (PCM) instead of advanced formats.
- Step 2.Use a different mirroring method: Some mirroring methods (like Miracast) don’t transmit all audio formats. Try switching to HDMI, Chromecast, or AirPlay.
- Step 3.Check the app settings: Some apps allow you to change the audio output directly in their settings.
3Temporary System Failure
Sometimes, technology just has a bad day. A simple restart might be all you need.
- A minor glitch in the software or connection can temporarily block audio transmission.
- The "digital gremlins" effect: Some settings don’t take effect until a restart.
To solve this:
- Step 1.Restart both devices: Turn off your phone and TV, wait 30 seconds, then turn them back on.
- Step 2.Reconnect screen mirroring: Disconnect and reconnect the mirroring session.
- Step 3.Try a different connection method: If you’re using Wi-Fi-based mirroring, try using a cable (HDMI or USB-C to HDMI).
4Outdated System or Firmware
An outdated system can lead to audio problems because screen mirroring protocols improve over time. Older devices may not fully support the latest mirroring features, leading to missing sound or lag.
Here’s how to fix it:
- Step 1.Check for system updates: On your phone and TV, go to Settings > System Update and install any available updates. Also, turn on auto-updates to prevent this issue.
- Step 2.Update the mirroring app: If you’re using a third-party mirroring app, update it from the App Store/Google Play.
- Step 3.Use a newer mirroring protocol: If your TV supports AirPlay 2 or Chromecast, use them instead of older options.
5Third-Party App Compatibility Issues
Sometimes, the problem isn’t with your device. It’s with the specific content or app you’re mirroring.
- Some streaming services block audio during screen mirroring due to copyright protection (e.g., Netflix, Disney+).
- The file you’re playing might have an incompatible codec that your TV doesn’t support.
To fix this:
- Step 1.Test with different content: Try mirroring a YouTube video or a music file to see if the issue is content-specific.
- Step 2.Use a different mirroring method: If an app blocks sound, try using an HDMI cable or official casting methods instead of screen mirroring.
- Step 3.Check file compatibility: If you're playing a local file, convert it to a common format like MP4 (AAC audio) using a media converter.
6Wi-Fi Network Instability
Wi-Fi is the primary channel for screen mirroring, especially in wireless mirroring methods such as AirPlay or Miracast. Both the screen content and audio data are transmitted over the Wi-Fi network.
If the Wi-Fi connection is unstable or lacks sufficient bandwidth, it can result in the loss or delay of audio, causing the sound to not be transmitted properly.
Solution:
Ensure that both your device and the receiving display (like a TV or PC) are connected to a stable and high-speed Wi-Fi network. Avoid connecting too many devices to the same network to reduce congestion.
You can also try switching between the 2.4GHz and 5GHz bands to optimize the connection, choosing the most suitable network frequency for your setup.
7Bluetooth Connection
In some cases, Bluetooth is used for transmitting audio, especially when connecting Bluetooth speakers or headphones. If the Bluetooth connection is unstable or has high latency, it can cause issues with the audio transmission, leading to no sound during screen mirroring.
Solution:
Ensure a stable Bluetooth connection. Try to reduce interference by keeping your Bluetooth devices within range and avoiding obstructions.
You may also want to unpair and re-pair the Bluetooth devices, or consider switching to a wired audio connection if Bluetooth continues to be problematic.
8External Device or Interface Issues
Another common cause of "screen mirror no sound" is a malfunctioning external device or connection interface. If you're using adapters, converters, or cables to connect devices, any fault in these components can disrupt the audio transmission.
Solution:
- Ensure the adapter supports both audio and video. Replace any faulty ones.
- Clean or fix damaged ports to ensure proper connection.
- Keep devices up to date to ensure compatibility with the audio-video signal.
9Bugs in Built-in Mirroring Feature
Sometimes, the default mirroring functions, such as AirPlay (iOS), Miracast (Android), or Windows' built-in screen mirroring, may have issues with audio transmission. These issues could stem from software bugs, limitations, or compatibility problems, resulting in the sound not being transmitted properly.
Solution:
You can try using third-party mirroring apps designed to handle both video and audio seamlessly. These free screen mirroring apps often offer more robust features and better compatibility.
There are many casting apps you can choose from, just based on your condition(such as OS, cost,connection methhod) to choose one. AirDroid Cast, LetsView,ApowerMirror are some good choices.
We'll take AirDroid Cast as an example to tell you how to use:
- Step 1.Download and open AirDroid Cast on both your devices.
- Step 2. Choose a Connection Method:
- Wireless: Enter the 9-digit Cast Code displayed on your PC and tap "Start Casting." Ensure your Internet is stable.
- USB: Enable USB debugging on your phone, then connect the two devices. This method offers less lag.
- Step 3. On Your TV: A casting request popup will appear. Click Allow to accept.
- Step 4. On Your Phone:A casting permission window will appear. Enable it and then tap "Start Now."
- Step 5. Once connected, you can screen mirror your play.
No sound when screen mirroring? Try AirDroid Cast to solve it.
AirDroid Cast is free to use for screen mirroring. It supports two way audio, and can cast smoothly.
Brand-Specific Solutions for No Sound While Mirroring
The mentioned solutions are some general fixes, while different manufacturers use different mirroring protocols, which can lead to unique problems. Below, we list some fixes for Samsung, Sony, and LG audio issues.
1. Samsung
Samsung TVs are known for their smart features. However, users sometimes face issues when the screen saver or “Auto Protection Time” kicks in unexpectedly. This can interfere with your mirroring session. Also, Bluetooth and network conflicts may block the sound.
Here’s what you can do:
- Step 1.Turn Off Interfering Features: Disable power saving mode and Bluetooth. These can create unwanted interference.
- Step 2.Run a Device Care Check: Use the Device Care feature to check for any underlying issues. Go to Settings > Support > Device Care and run a quick self-diagnosis.
- Step 3.Update the Firmware: Always check for software updates under Settings > Support > Software Update.
2. Sony
Sony TVs often rely on Android TV or proprietary mirroring protocols. Users have reported unstable audio when using Miracast or Chromecast. Sometimes, audio codec conflicts lead to missing sound. Here’s how to fix these issues:
- Step 1.Upgrade Your Firmware: Check for updates by navigating to Settings > Device Preferences > About > System Update. Keeping your TV updated can solve many issues.
- Step 2.Check the Input Source: When using Miracast or Chromecast, ensure you’ve selected the correct input source on your TV.
- Step 3.Resolve Audio Codec Conflicts: If you suspect a codec issue, switch from multi-channel audio to stereo (PCM) via Audio Settings.
- Step 4.Consider a Wired Connection: When wireless fixes fail, try an HDMI or USB-C cable to bypass wireless issues.
3. LG
LG TVs, with their WebOS system, bring their quirks. Some users find that YouTube audio intermittently cuts out on AirPlay, while local videos work fine. This might be due to app-specific issues or copyright protection. Here are some solutions:
- Step 1.Test with Different Apps: If YouTube fails to produce sound, try mirroring from another app like Netflix or a local video file.
- Step 2.Adjust Audio Sync Settings: Navigate to Settings > Sound > AV Sync Adjustment. Tweak the settings to better align the audio.
- Step 3.Utilize the Sound Self-Diagnosis Tool: LG offers a tool under Support > Sound Self-Diagnosis. It can help identify and fix audio issues.
- Step 4.Disable Advanced Audio Features: Try turning off features like Dolby Atmos in Settings > Sound > Advanced if you’re mirroring from Apple devices.
Each TV brand has its quirks when it comes to screen mirroring audio. Whether it’s Bluetooth interference, outdated firmware, or app-specific restrictions, these solutions will help.
Summing Up
Audio issues during screen mirroring can be a real pain. You might run into mute settings, compatibility glitches, or firmware hiccups. But don't worry. You can fix these with a few simple steps. Try restarting your devices, adjusting settings, or updating your firmware.
And if problems persist, give AirDroid Cast a try. It offers a reliable way to keep your screen mirroring smooth and your audio crystal clear. Happy mirroring!
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