Modern technology makes it possible to turn any smartphone into a powerful multimedia remote control capable of streaming content to a large screen. If you want to enjoy your favorite music, podcasts, or video audio through your phone's high-quality speaker system, LG TV, you don't need complicated cables. Wireless connectivity opens up new possibilities for home entertainment, providing clear sound without the hassle of wires.
However, the setup process can be confusing due to the variety of operating systems and software versions. Users often encounter situations where video streams but there's no sound, or the device simply doesn't detect the TV. In this article, we'll cover all the current audio streaming methods in detail, focusing on connection stability and sound quality.
Before you begin setting up, you need to make sure that both devices – your smartphone and TV – are connected to the same network. Wi-FiThis is a basic requirement for most data transfer protocols. If your router supports dual-band mode, it's recommended to use the 5 GHz frequency to minimize latency and interruptions during streaming.
Preparing equipment and network
The quality of your wireless streaming directly depends on the condition of your local network. A weak signal or congested channel can cause audio and video to become out of sync, as well as crackling. Make sure your router is within range and your TV's firmware is up to date. LG webOS updated to the latest version.
First, check your router settings. Router manufacturers sometimes enable a client isolation feature (AP Isolation), which prevents devices on the same network from seeing each other. This option must be disabled so your phone can detect the TV for audio streaming.
- 📡 Make sure your phone and TV are connected to the same subnet (for example, the Guest network may block access to devices).
- 🔄 Restart your router if the connection is unstable or the data transfer speed is low.
- 🔒 Check if your smartphone's antivirus software is blocking local device searches on the network.
⚠️ Note: If you're using a guest Wi-Fi network, your TV may not appear in the list of available devices. Switch both devices to your main home network.
It's also worth paying attention to your smartphone's operating system version. Older versions of Android or iOS may not support the latest codecs or protocols used by your TV. A software update often resolves compatibility issues without the need for additional hardware.
Using the built-in Screen Share (Miracast) feature
The most common way to transmit images and sound is through technology Miracast, which LG implemented in the Screen Share feature. This method allows you to completely mirror your smartphone's screen on your TV, while also broadcasting all system audio. For Android devices, this is often the primary native connection method.
To activate signal reception on your LG TV, press the button Input on the remote control and select the application Screen Share Or find the corresponding item in the Smart TV menu. On some newer webOS models, this feature is built right into the main menu and doesn't require launching a separate app.
On your Android smartphone, go to Settings and find the "Connections" or "Cast" section. Depending on your phone manufacturer, this feature may be called Smart View, Cast, Wireless Display, or Cast. After enabling the search, select your TV from the list.
☑️ Check before broadcasting Screen Share
After successful pairing, sound from any applications (YouTube, music player, browser) will be output through the TV speakers.
⚠️ Please note: When streaming via Miracast, your smartphone's battery drains significantly faster due to the high load on the Wi-Fi module and screen. It is recommended to keep your phone charged.
Stream from iPhone via AirPlay 2
Owners of Apple devices are more fortunate, as modern LG TVs support the technology AirPlay 2 Natively. This allows you to output audio and video without installing additional apps, using standard iOS tools. Audio quality remains high, and latency is minimal.
To get started, make sure AirPlay support is enabled on your TV. Go to your TV settings and navigate to the "AirPlay" section. General -> AirPlay and make sure the switch is set to the on position OnYou can also set up a code requirement for connection here, which increases the security of your network.
On your iPhone or iPad, open Control Center (swipe down from the upper-right corner or up from the bottom on older models). Tap the "Screen Mirroring" icon (two rectangles) and select your LG TV from the list. If you want to cast only the audio from a specific app (such as Apple Music or YouTube), use the cast icon within the app itself.
- 🍏 AirPlay 2 lets you create stereo pairs and multi-room systems with other Apple speakers.
- 🎵 The function supports high-quality audio transmission without the compression typical for Bluetooth.
- 🔊 The volume can be adjusted independently using both the phone buttons and the TV remote control.
What should I do if AirPlay doesn't detect my TV?
Make sure AP Isolation isn't enabled on your router. Also, try restarting your router and TV. In rare cases, resetting your iPhone's network settings may help.
Companion apps: LG ThinQ and TV Plus
If standard methods don't work or you need advanced control features, you can use official applications from the manufacturer. LG ThinQ — is a universal remote control and smart home control center that allows you to not only manage settings but also stream media files from your phone to your TV.
After installing the app and registering with the LG system (required), add your TV to the list of devices. In the app interface, select "Streaming" or "Media," then select the audio or video files on your smartphone. The app will automatically find an available TV on the network and begin playback.
Another popular solution is the app LG TV Plus, which emulates a remote control. While its primary function is control, it also has a built-in media player that lets you open files from your phone and display them on the big screen. This is convenient if you need to play a local audio file not available through streaming services.
| Function | LG ThinQ | LG TV Plus | Built-in AirPlay/Miracast |
|---|---|---|---|
| Media broadcast | Yes | Yes (local files) | Yes (screen/sound) |
| TV control | Basic | Full (remote control) | No |
| Account required | Yes | No | No |
| Stability | High | Average | Maximum |
Third-party solutions: AllCast and BubbleUPnP
When built-in tools are not flexible enough, third-party applications that work on the protocol come to the rescue. DLNAOne of the leaders in this niche is the BubbleUPnP app. It allows you to stream audio of virtually any format to your TV, acting as a media server.
The principle is simple: you install the app on your phone, it scans the network and finds your LG TV. Then, you select a music track or playlist in the app and specify the TV as the rendering device. The audio is transmitted directly from your phone to the TV, bypassing complex codecs.
Another popular solution is AllCastIt features a simple interface and supports a wide range of cloud storage services (Google Drive, Dropbox), allowing you to stream music directly from the cloud to your TV. This saves space on your smartphone and eliminates the need to download files first.
- 📂 Support for a huge number of audio formats that the standard TV player cannot read.
- 🌐 Ability to stream from cloud storage and NAS network folders.
- ⚙️ Fine-tuning the buffer and stream quality for weak networks.
Troubleshooting audio and lag issues
Even with proper setup, technical difficulties can still arise. The most common issue is audio and video desynchronization or a complete lack of audio. If the video plays but there's no sound, check the audio settings on your TV. It's possible the output mode is set to optical output or an external system, rather than the TV's speakers.
Lag is often caused by Wi-Fi congestion. If your router operates in the 2.4 GHz band, neighboring networks may be interfering. Switching to 5 GHz solves the problem in 90% of cases. Also, try closing background apps on your smartphone that may be consuming data.
In some cases, resetting the network settings on your TV can help. To do this, go to the menu Settings -> Net -> Wi-Fi Connection, select your network, and click "Forget." Then, re-enter the password. This will clear the network settings cache and establish a fresh connection.
⚠️ Note: The menu interface on LG TVs may differ depending on the webOS version (3.0, 4.0, 5.0, 6.0, and later). The layout of the options may vary, but the logic remains the same.
If the audio is choppy or stuttering, try reducing the video quality on your streaming service (for example, from 4K to 1080p). A high video bitrate can choke the audio stream on a weak Wi-Fi signal. Also, make sure there are no heavy background app updates running on your TV.
Frequently Asked Questions (FAQ)
Is it possible to output sound if the phone screen is off?
When using protocols like DLNA (via music apps) or AirPlay (for music), the screen may be off. However, when using Screen Share (Miracast), the phone's screen should be lit because the video signal is being transmitted.
Why isn't my LG TV visible in the list of devices for streaming?
Check if the discovery feature is enabled in your TV settings (often called Mobile TV or Connection Guide). Make sure both devices are on the same network and client isolation is disabled on the router.
Does audio streaming affect Wi-Fi connection quality?
Yes, audio streaming, especially in high definition, consumes bandwidth. When using the 2.4 GHz band, this can significantly reduce internet speeds on other devices.
How to improve sound quality during wireless streaming?
Use the 5 GHz band, bring your phone closer to the router for a stable signal, and choose lossless formats (FLAC, WAV) when using DLNA players.