Watching movies and TV series these days often becomes a problem for those who don't live alone: loud explosions in action films or a bassy soundtrack can disturb others in the household. The solution seems simple—buy a wireless headset. However, many users mistakenly believe that this requires a wireless headset. BluetoothIn fact, there is a more advanced way to transmit audio through Wi-Fi network, which provides better quality and lower latency.
Unlike traditional pairing, connecting via a home network allows you to stream audio to multiple devices simultaneously or use your smartphone as an intermediary. Smart TV Today, headphones are equipped with a variety of protocols that few people know about. In this article, we'll look at which headphone models support operation via Wi-Fi Direct and DLNA, as well as how to turn your phone into a powerful sound transmitter.
It's important to understand that "Wi-Fi connection" is a general term. It can refer to a direct connection between a device and a TV or data transfer via a router. Digital transmission In this case, the signal quality is often better than analog. We'll cover all the details so you can choose the best option for your audio system.
Wireless Audio Technologies: Wi-Fi vs. Bluetooth
Before buying equipment, it is important to understand the terminology. Most people are confused. Bluetooth And Wi-Fi, considering them interchangeable technologies. This is not the case. Bluetooth operates at 2.4 GHz with a narrow data channel, which is great for voice, but can limit the quality of high-resolution audio codecs.
Technology Wi-Fi They have significantly higher bandwidth. This allows for the transmission of uncompressed or lightly compressed audio streams without loss of detail. There are special models of headphones that connect to the home network directly or through an intermediary app. Sony And Bose often use their proprietary protocols over Wi-Fi for multi-room audio systems.
However, it's worth noting an important nuance. Directly connecting a headset to a router to receive audio from a TV is rare due to synchronization difficulties. More commonly, a hybrid method is used: the TV sends a data stream over the network to the smartphone, which then streams it to the headphones, or a technology called "streaming" is used. Wi-Fi Direct, creating a direct access point.
⚠️ Note: Not all smart TVs support audio output to third-party Wi-Fi devices without the use of dedicated intermediary apps. Check the list of supported protocols in the menu.
Settings → Sound → Audio Outputbefore purchasing expensive equipment.
Headphone models with Wi-Fi Direct and network protocol support
There are a few models on the market that can connect directly to a TV via Wi-Fi without a Bluetooth adapter. These are primarily flagship series aimed at audiophiles. For example, Sony WH-1000XM4 and newer ones have features that allow them to work within the ecosystem Home Connect or similar solutions, although they most often use Bluetooth as the main bridge.
More interesting are specialized solutions, such as headsets from Sennheiser RS series, which use their own base unit that connects to the TV. This unit often supports network protocols. Devices with this support are also worth considering. AirPlay 2 (for Apple owners) or Chromecast built-inIn this case, the headphones act as the end device in the network.
Below is a compatibility table of popular technologies and device types:
| Technology | Device type | Sound quality | Latency |
|---|---|---|---|
| Bluetooth aptX LL | Smartphones, TV | High | Low (40 ms) |
| Wi-Fi Direct | Flagship TV | Maximum | Minimum |
| DLNA Renderer | Media players | Average | High (buffering) |
| AirPlay 2 | Apple TV, iPhone | High | Average |
When choosing, pay attention to the presence of logos Hi-Res Audio WirelessThis ensures that the device is capable of transmitting high-resolution audio, which is especially important when using broadband Wi-Fi channels. Regular office headsets rarely support such standards.
Why is Wi-Fi better than Bluetooth for movies?
Wi-Fi bandwidth allows for more data to be transmitted per second. This means less compressed audio, a wider dynamic range, and the absence of compression artifacts often heard in quieter movie scenes.
Using a Smartphone as a Bridge (Broadcasting via App)
The most affordable way to connect any wireless headphones to your TV via Wi-Fi is to use your smartphone as an intermediary. Modern Smart TV Samsung, LG, and Sony devices allow you to stream video and audio to your mobile device. You'll need to install the manufacturer's proprietary app, such as SmartThings or LG ThinQ.
The principle is simple: the TV encodes the video stream and sends it over the local network to the phone. The phone, in turn, outputs the audio to headphones connected via Bluetooth. This allows you to use Wi-Fi network to transmit the main data array, unloading the phone's Bluetooth channel only for a short distance to the user's ears.
To implement this method, follow these steps:
- 📱 Make sure your TV and smartphone are connected to the same Wi-Fi network.
- 📲 Download the official TV control app (indicated in the TV manual).
- 🎧 Pair the headphones with your smartphone via standard Bluetooth.
- ▶️ Launch the "Screen Casting" or "Smart View" feature in the app.
This method may have a slight audio delay (lip-sync issue). However, most modern applications have a setting Audio Sync, which allows you to correct for lag. The sound quality in this case will depend on the codec used for transmission between the phone and the headphones, for example, aptX or AAC.
Setting up DLNA and UPnP for audio streams
Protocol DLNA (Digital Living Network Alliance) was originally designed for sharing media between devices on a home network. While it's most often used for viewing photos and videos from a computer on a TV, it also supports audio streaming. Some advanced headphones with Android or iOS support can act as DLNA Render (renderer).
To set up this connection, your TV must support the "Push to Device" feature or a similar one. You select a file or stream, and specify a network device as the output device, not the TV's built-in speakers. For headphones, this works through special client apps that emulate a DLNA receiver.
Popular applications for organizing such a flow:
- 🎵 BubbleUPnP (Android) - A powerful tool for audio routing.
- 🍏 mConnect Player (iOS/Android) - supports many formats.
- 💻 VLC Media Player - has network streaming functions.
DLNA is convenient because audio is transmitted digitally over the network, bypassing the TV's analog conversion. This is especially important for older TVs that don't have a high-quality digital-to-analog converter (DAC).DAC). However, the control interface may be less convenient than with a direct connection.
⚠️ Please note: The DLNA protocol is not designed for real-time, low-latency audio transmission (like in games or live streaming). It is optimized for buffered file playback, so lip sync and audio may be noticeable.
Specifics of connecting to TVs of different brands
TV manufacturers implement wireless audio support in different ways. Each company has its own ecosystem and set of limitations. For example, Samsung works well with the app SmartThings, allowing you to output sound to the connected phone. In the menu Settings → General → External Communication List → Device List You can see the available gadgets.
Televisions LG webOS-based devices often have built-in Bluetooth support, but offer a service for working via Wi-Fi. Sound Sync. Owners Sony with Android TV can use the function Chromecast to cast audio to compatible speakers or headphones if they support Google Cast. Xiaomi And TCL often rely on standard Android protocols.
☑️ Check TV compatibility
It is important to consider the version of the TV's operating system. Older models are based on Tizen or earlier versions Android may not support modern audio codecs. In this case, the only solution is to use external set-top boxes (Apple TV, Android Box), which take over the processing and transmission of the audio stream.
Solving latency and audio quality issues
The main problem with wireless audio is lag. When you're watching an action movie, the gunshot might sound a split second after the flash on the screen. This is called LatencyWhen transmitting via Wi-Fi, latency is usually lower than via Bluetooth, but it depends on the channel load. If neighbors are also downloading torrents, the sound may be interrupted.
To diagnose the problem, use the built-in synchronization tests in the TV menu. There is often an option there. Sound delay or Audio Delay, where you can manually add milliseconds to the audio stream to match the video. Switching the router's frequency also helps. 5 GHz, which is less noisy.
If the sound is hoarse or intermittent:
- 📶 Move closer to the router to strengthen the signal.
- 🔌 Turn off other devices that consume traffic.
- ⚙️ In your TV settings, change the sound format to
PCMinstead ofAutoorDolby Digital, since PCM requires less resources for decoding.
Alternative Solutions: Bluetooth Adapters with Wi-Fi Support
If your TV is "dumb" or doesn't support the required protocols, don't despair. There are external Bluetooth transmitters, which connect to the optical or AUX output of the TV. Some advanced models, such as from Avantree or 1Mii, have their own latency-reducing features and can be paired with two headsets simultaneously.
While they technically use Bluetooth for the final mile to the ears, the transmitter itself can access settings via a Wi-Fi app for firmware updates or fine-tuning the equalizer. This hybrid approach is often more reliable than the built-in solutions found in budget TVs.
When choosing an adapter, look for codec support aptX Low LatencyWithout this technology, watching movies will be uncomfortable due to desynchronization. Make sure your headphones support the same codec, otherwise you won't get the benefit.
Is it possible to connect regular Bluetooth headphones to a TV via Wi-Fi?
Directly, no, as these are different protocols. However, using a smartphone as a bridge (TV -> Wi-Fi -> Phone -> Bluetooth -> Headphones) or a special adapter connected to the TV is possible. Direct over-the-air pairing between different technologies is impossible without a converter.
Does internet speed affect sound quality?
No, not if you're watching content stored on your TV or streaming from a local server (DLNA). If you're watching online movies (Netflix, YouTube), your internet speed will affect video buffering, which may indirectly cause interruptions in the audio stream, but it won't affect the quality of the audio encoding within the stream.
Why doesn't the TV see the headphones in the list of Wi-Fi devices?
Most likely, your headphones don't support access point mode or the DLNA/UPnP protocol in renderer mode. Most consumer headphones only work as Bluetooth clients. They require a special operating system or a proxy app to connect via Wi-Fi.