Modern users often need to transfer audio from a powerful desktop to a mobile device, whether for listening to music in another room or using a smartphone as a remote monitor. Wireless data transfer technology allows you to forget about unnecessary wires and enjoy high-quality sound anywhere in your apartment where there's network coverage. However, unlike simple file transfer, streaming requires a stable connection and the right software.
There are many scenarios where you might need this feature: from setting up background radio in the kitchen to using your iPhone as system speakers for a video conference. It's important to understand that standard operating system tools Windows And iOS This function is implemented indirectly, but through intermediaries—specialized apps or built-in streaming protocols. In this article, we'll examine the most effective and proven methods.
Before you begin setup, make sure both devices are connected to the same network. Wi-FiThis is a fundamental requirement; ignoring it will result in devices simply not "seeing" each other on the local network. If the router supports dual-band mode, it's recommended to use the 5 GHz frequency to minimize latency.
⚠️ Attention: If your router separates the network into guest and main, make sure that the PC and iPhone are on the same network segment, otherwise direct exchange of data packets will be blocked by the router's security settings.
Preparation of equipment and network infrastructure
The quality of the transmitted audio signal directly depends on the bandwidth of your connection. For comfortable listening without compression artifacts and interruptions, it is necessary to ensure a stable data transfer rate. The ideal option is to connect your computer to the router via LAN cable, which will free up airtime for the smartphone's wireless connection.
Check your computer's firewall settings. System security tools can often block incoming connections from mobile devices, deeming them suspicious. You may need to add an exception for your chosen streaming app or allow access to the local network in the "Private Network" profile.
It's also worth paying attention to the power saving settings of your network adapter. In some cases, Windows It may turn off the Wi-Fi module or reduce its power to save power, which causes micro-interruptions in the audio stream. Disable the "Allow the computer to turn off this device to save power" option in Device Manager.
- 📶 Make sure both devices are on the same subnet (e.g. 192.168.1.x).
- 🔌 Use an Ethernet cable for your PC to reduce the load on your Wi-Fi channel.
- 🛡️ Check your antivirus and firewall settings to see if they are blocking local ports.
Using the AudioRelay app for streaming
One of the most popular and functional solutions today is the combination of a server-side application on a PC and a client-side application on a smartphone. AudioRelay It has proven itself as a tool with minimal latency and high bitrate support. The program allows you to stream audio from any program running on your computer, including system sounds and voice communication.
To get started, you need to download and install the server part of the program on your computer, and then find the application of the same name in App StoreAfter launching the server on your PC, it will automatically scan the network and become available for connection. On an iPhone, simply select the device that appears in the list of available servers.
You can select a sound quality profile in the app settings on your smartphone. For music, we recommend selecting the "Music" mode. High Quality, which uses codecs with lower compression. If you plan to use this combination for games or videos where synchronization is important, it's better to switch to the minimum buffer mode, even at the expense of audio quality.
☑️ Setting up AudioRelay
The app's interface allows you to flexibly adjust the equalizer and channel balance directly from your phone. This is especially convenient if your computer is in another room and physical access is limited. You can adjust the volume independently of the Windows system volume.
Broadcasting via VLC Media Player
Many users don't know that the popular media player VLC VLC can not only play files but also stream audio over the network. This method is ideal if you need to stream a specific audio file or stream, rather than all of your computer's system audio. VLC uses standard protocols, ensuring high compatibility.
To start broadcasting, open the player on your computer, go to the "Media" menu, and select "Broadcast." In the window that opens, add the desired file and select "HTTP" as the output method. Next, configure the port and access path, and then click "Broadcast."
You'll also need to have VLC for Mobile installed on your iPhone. Open the "Network" tab and find the "Local Network" section. Your computer should appear there. Clicking on it will reveal available streams. This method is great for its versatility, but it requires manual configuration of each file.
How to reduce latency in VLC?
To reduce buffering in VLC on iPhone, go to Settings -> Audio and reduce the "Network Caching" value. However, setting this value too low can cause audio interruptions on unstable Wi-Fi connections.
It's worth noting that VLC isn't designed to play system sounds (such as messenger notifications or browser audio). It only works with media files you explicitly specify for playback. This makes it less convenient for background playback, but it's an excellent choice for creating an impromptu music system.
Comparison of audio stream transmission methods
The optimal method depends on your specific needs: whether you need to stream game audio, simply listen to music files, or set up a notification system. Different programs use different compression and buffering algorithms, which directly impact the final result.
The table below compares the key features of popular audio streaming solutions. Please pay attention to the latency parameter, as it can be critical for some scenarios.
| Application | Broadcast type | Latency (ms) | Difficulty of setup |
|---|---|---|---|
| AudioRelay | System sound | 20-50 | Low |
| VLC Player | Media files | 100-300 | Average |
| SoundWire | System sound | 40-80 | Low |
| Airfoil | Selective applications | 30-60 | High |
As you can see from the comparison, specialized applications like AudioRelay And SoundWire They have superior response speed, making them preferred for real-time multimedia content. VLC remains the king of local library playback, but lacks the flexibility of streaming.
⚠️ Attention: Free versions of many programs have limitations on runtime or audio quality. Before purchasing a paid license, check whether the app supports lossless codecs if you're an audiophile.
Troubleshooting connection and sound quality issues
Even with proper setup, users may experience audio artifacts such as crackling, stuttering, or complete signal loss. Most often, this is caused by wireless channel congestion or IP address conflicts. Restarting the router often temporarily resolves the issue.
If the audio is choppy, try lowering the bitrate in the streaming app settings. Transferring audio in the following format: Lossless requires a significant amount of bandwidth, which home Wi-Fi may not always provide, especially in an apartment building with many neighboring networks.
It's also worth checking that no background downloads or updates are running on your computer, which could clog up your bandwidth. For stable streaming, it's advisable to reserve some bandwidth specifically for the audio stream, disabling torrents or cloud syncing while listening.
In some cases, antivirus software may detect a data stream as suspicious. Try temporarily disabling your firewall for diagnostics. If the problem resolves, add the streaming app to your list of trusted programs.
Setting up a PC-based multi-room system
Using the methods described, you can create a fully functional multi-room audio system, with your computer acting as the central server and your iPhone as a remote control in another room. This allows you to control playback from the comfort of your couch and listen to music on your smartphone's portable speakers or a connected Bluetooth speaker.
Some advanced users configure the server component to launch automatically when the computer is turned on. This allows mobile devices to be instantly connected to the home audio system. It's important to ensure the computer doesn't go into sleep mode, interrupting the connection.
To implement such a scheme, you can use scripts or a task scheduler. WindowsSetting up autostart ensures the server is always ready to connect, turning your home network into a unified audio environment.
Is it possible to stream audio without installing software on a PC?
Unfortunately, it's not possible to stream system audio to iOS using standard Windows tools. A server component (driver or service) must be installed to capture the audio stream and encode it for transmission over the network.
Does audio streaming affect internet speed?
Within a local area network (LAN), internet speed isn't consumed because data is transferred between your devices directly through the router. However, if you use internet radio or streaming services on your PC, your data usage is normal, but it's transferred locally to your phone, saving you mobile data.
Why does echo occur when broadcasting sound?
Echo occurs when the iPhone microphone picks up audio streamed from the PC and sends it back, or if "Listen to this device" is enabled in the playback system. Check your Windows sound settings and ensure that the phone's microphone isn't enabled in an app.