Transferring audio from a computer to a smartphone Android opens up a lot of possibilities: from listening to music through wireless headphones to using your phone as a portable speaker or microphone for streaming. However, not all methods are equally effective - some problems arise, some quality suffers, and some methods require additional equipment. In this article we will look at how to output sound from a PC to a device, compare them in terms of speed, stability and ease of setup, and also give recommendations for specific scenarios (games, videos, calls). audio delays, quality suffers in some places, and some methods require additional equipment. In this article we will look at 7 proven methods data-i="38">We will pay special attention to output audio from PC to Android-device, compare them in terms of speed, stability and ease of setup, and also give recommendations for specific scenarios (games, videos, calls).

We will pay special attention the problem of synchronizing audio and video this is the most common complaint from users when transmitting audio via Bluetooth or Wi-Fi. You will learn how to minimize lags and what settings should be changed first. And if you are looking for a solution for a specific problem (for example, outputting sound from Discord or Zoom to a phone), the article has separate instructions for such cases.

1. Transmitting sound via Bluetooth: a simple, but not ideal way

The most accessible method is to use Bluetooth-connection. It does not require the installation of additional apps (standard functions are sufficient Windows i Android), but it is not suitable for all tasks. The main disadvantage is noticeable sound delay (from 100 to 300 ms), which makes the method unsuitable for playing games or watching videos.

How to set up:

  • 📱 On the phone: open Settings → Connected devices → Connection settings → Bluetooth and turn on visibility.
  • 💻 On PC: go to Settings → Devices → Bluetooth and other devices, click “Add device” and select your smartphone.
  • 🔊 After connecting in the taskbar Windows click on the sound icon, select your phone in the list of output devices.

To improve sound quality:

  • 🎧 In settings Bluetooth on your phone, enable the “High-quality audio codec” option (if available). On some models (Samsung Galaxy S23, Xiaomi 13) this reduces the latency to 50–80 ms.
  • 🔄 Use Bluetooth 5.0 and above - older versions (4.2 and below) give strong lags.
⚠️ Attention: When connecting via Windows 10/11 when connected via Bluetooth audio can only go to one device. If you already output audio to a speaker or headphones, you will have to choose one thing.
📊 Why do you need to transfer sound from a PC to your phone?
Games
Watching movies
Calls (Discord/Zoom)
Using the phone as a microphone
Other

2. Applications for transmitting sound over Wi-Fi: minimal delays

If Bluetooth you are not satisfied due to lags, the best option is specialized applications that transmit sound over a local network. Wi-Fi. They work with latency 20–50 ms, which is enough for games and videos. The most reliable solutions:

Application Latency Codec support Features
SoundWire ~30 ms MP3, AAC, WAV Paid version removes ads, free version limits session time
AudioRelay ~20 ms Opus, AAC Supports microphone, works via the Internet (not only local network)
WoMic ~40 ms WAV, Opus Specializes in transmission microphone, but can also broadcast system sound. Android

Instructions with example AudioRelay (recommended for games):

  1. Download PC application And for Android.
  2. On the PC in the settings, select “Server”, on the phone - “Client”.
  3. Connect both devices to the same network Wi-Fi (or use USB-ethernet for stability).
  4. In the settings AudioRelay on your PC, select “System Audio” as the source, and on your phone, click “Connect.”

To reduce latency:

  • 📶 Use Wi-Fi 5 GHz instead of 2.4 GHz —less interference.
  • 🔌 Connect the PC to the router via cable Ethernet (if possible).
  • 🎛 In the settings AudioRelay select the codec Opus and bitrate 192 kbps.

Opus codec|Bitrate 192 kbps|Wi-Fi 5 GHz|PC connected via Ethernet|Disable background apps on PC-->

3. USB cable: the most stable method without delays

If you need zero sound lag (for example, to record podcasts or streams), connecting via USB is the best choice. There is only one minus: the phone must support USB OTG (most modern models - yes). You will need:

  • 🔌 Cable USB-Type C (or Micro-USB, depending on the phone connector).
  • 💻 On a PC - driver ADB (included Android Studio).

Step-by-step guide:

  1. Enable on your phone Developer Mode (click on “Build number” 7 times in Settings → About phone).
  2. Enable "USB Debugging." Settings → System → For Developers Enable USB Debugging.
  3. Connect the phone to the PC with a cable and in the window that appears on the phone, enable debugging.
  4. On the PC, open the command line and enter:
    adb forward tcp:5000 tcp:5000
  5. Install on the phone SoundWire or AudioRelay and select the mode USB Audio.

Advantages of the method:

  • 🎵 Zero delay —the sound is synchronous with the video.
  • 🔋 Does not drain the phone battery (unlike Bluetooth/Wi-Fi).
  • 🎤 You can use the phone as a microphone for OBS or Discord.
⚠️ Attention: On some phones (Samsung A-series, Redmi Note), when connected via USB the sound can only go in one direction (either to the phone or from the phone). Check the settings USB configurations in the notification shade.

4. Using the phone as a microphone for a PC (reverse transmission)

If you do not need to output sound With PC, but transmit sound to PC (for example, use the phone as a microphone for streams or calls), the same AudioRelay or WoMicwill do, but with different settings. This method is popular among streamers who want to use the phone as wireless microphone with noise reduction.

How to set up in WoMic:

  1. Download client for PC i app for Android.
  2. On the PC in the settings WoMic select “Transport → Wi-Fi” or “USB.”
  3. On the phone in the application, click “Start” and allow access to the microphone.
  4. In Windows go to Settings → System → Sound and select WoMic as input device.

For better quality:

  • 🎤 In settings WoMic select codec Opus and bitrate 128 kbps.
  • 🔇 Turn on noise reduction in the application on your phone (the “Noise Suppression” option).
  • 📱 Close all background applications on your phone - they can cause interference.
How to reduce noise when using your phone as a microphone?

1. Use an external microphone connected to your phone (for example, a Lavalier or headset).

2. settings WoMic turn on “Echo Cancellation” and “Noise Reduction”.

3. Place the phone closer to the sound source (but not closer than 20 cm to avoid hoarseness).

4. If you use Wi-Fi, connect the PC to the router with a cable, and leave the phone on a wireless connection - this will reduce interference.

5. Transferring audio from specific applications (Discord, Zoom, games)

If you need to output audio only from one application (for example Discord, Zoom or games), and leave the system audio on the PC, use virtual audio devices. The easiest way is a app VB-Cable (free) + AudioRelay.

Instructions:

  1. Download and install VB-Cable on PC.
  2. B sound settings Windows (Settings → System → Sound) select CABLE Input as the default device.
  3. In settings Discord/Zoom select CABLE Output as an input device.
  4. On AudioRelay on a PC, specify CABLE Input.

For games (for example, CS2, Valorant):

  • 🎮 In the game settings, select CABLE Output as an output device sound.
  • 🔊 On your phone, turn on the “Low Latency” mode. AudioRelay On your phone, turn on the “Low Latency” mode.
⚠️ Attention: Some anti-cheats (for example, in Valorant or PUBG) can block virtual audio devices. In this case, use USB method or Bluetooth (despite the delays).

6. Problems and solutions: why the sound is interrupted or does not work

Even with correct settings problems may arise. Here are the most common and ways to solve them:

Problem Possible cause Solution
Sound interrupts every 5-10 seconds Interference network Wi-Fi or weak signal Switch to 5 GHz, reduce the bitrate in the application settings to 96 kbps
The sound comes with a strong delay (>500 ms) Using Bluetooth 4.0 or an old codec Update drivers Bluetooth on your PC or use Wi-Fimethod
The application does not see the PC on the local network Firewall or antivirus is blocking the ports Add an exception for the application in Windows Defender or disable it temporarily
The sound is noisy (wheezing, crackling) Poor codec quality or processor overload Select the codec Opus and close background apps on the PC

If the sound does not come out at all:

  • 🔄 Reboot router and both devices.
  • 🔧 Check that Do Not Disturb or Battery Saver mode is not turned on on your phone (they may block background audio).
  • 📡 If you do, try connecting to another network or creating an access point on your phone and connecting to it PC. Wi-Fi, try connecting to a different network or creating a hotspot on your phone and connecting your PC to it.
💡

If the sound is delayed in games, but everything is fine in the menu, try turning on the “Game Mode” option in the settings AudioRelay It reduces buffering due to a slight deterioration in sound quality.

7. Alternative methods: Chromecast, DLNA and more.

If standard methods are not suitable, you can use alternative solutions. They are less universal, but sometimes they are the only way out.

Method 1: Google Chromecast or Smart TV with support DLNA

  • 📺 Connect Chromecast to the TV and broadcast the sound from the PC via Google Chrome (the "Broadcast" option).
  • 📱 On your phone, enable screen mirroring via Google Home and output the sound to the phone speakers.

Method 2: Applications for screen mirroring

  • 🖥 apps like ApowerMirror or TeamViewer allow you to broadcast your PC screen to your phone, including sound.
  • 🔊 Minus - high latency (up to 1 second), but suitable for presentations or watching movies.

Method 3: Audio via Discord or Telegram

  • 🎧 Create a voice channel in Discord, connect to it from your phone and PC, then on your PC in the voice settings, select “Stereo Mix” as the source.
  • 📱 You can send a voice message from the PC screen (via recording system audio), but this is inconvenient for long-term use. Telegram You can send a voice message from the PC screen (via system audio recording), but this is inconvenient for long-term use.
💡

For minimal audio latency when broadcasting games or videos, use USB cable or Audio Relay over Wi-Fi 5 GHz. Bluetooth only suitable for music or podcasts without synchronization with video.

FAQ: Frequently asked questions about transferring audio from a PC to Android

Is it possible to output audio from a PC to a phone without the Internet?

Yes, the following are suitable for this:

  • Bluetooth (works without a network, but with a delay).
  • USB cable (zero delay, does not require Internet).
  • Local network Wi-Fi (if you have a router, but the Internet is turned off).

Applications like AudioRelay also work on a local network without access to the Internet.

How to output sound from Discord to the phone, and leave the rest of the sound on PC?

Use virtual audio device VB-Cable:

  1. Install VB-Cable and select CABLE Output as output device in Discord.
  2. In AudioRelay on PC specify CABLE Input as the sound source.
  3. On your phone, connect to the server AudioRelay.

Now the sound from Discord will go to the phone, and the system sound will remain on the PC.

Why does the sound come with a delay, even if I I use Wi-Fi?

Causes and solutions:

  • The router is overloaded → Reboot it or connect the PC via cable.
  • Weak signal Wi-Fi → Go on 5 GHz or get closer to the router.
  • High bitrate → In the application settings, reduce the bitrate to 96–128 kbps.
  • Background processes → Close torrents, downloads and other apps that load the network.
Is it possible to use the phone as a speaker for a PC on Windows 7?

Yes, but with limitations:

  • Bluetooth works, but drivers may require manual installation.
  • For Wi-Fimethod needs support Windows 7 in the application (for example, SoundWire works, but AudioRelay does not).
  • USB method requires installation ADB and may not support new ones codecs.

We recommend upgrading to Windows 10/11 for stable operation.

Which method is better for watching movies from a PC on your phone?

Optimal options:

  1. For quality without delay: USB cable + AudioRelay.
  2. For convenience: Wi-Fi + SoundWire (delay ~50 ms, invisible in films).
  3. To save battery: Bluetooth (but only if the film has no dialogues or subtitles not critical).

Avoid DLNA/Chromecast - there the delay can reach 1-2 seconds.