Share audio between a Windows PC and an Android mobile device It's not always as simple as plugging in a cable or turning on Bluetooth. Sometimes we need something very specific, like having the phone receive sound from the computer "as if it were" a microphone, to use it in apps like TikTok, voice recorders, or video calling tools that only accept external microphone input.
In other cases, what we are looking for is just the opposite: send audio from mobile to PC to take advantage of powerful speakers, or turn your phone into a wireless speaker for your computer, or even mirror your screen with sound for presentations, games, or movies. Today, you can do all this for Bluetooth, USB, Wi-Fi, Miracast, specialized apps, and physical adaptersEach option has its advantages and limitations.
How to send audio from your PC to Android and use it as a microphone
The most delicate scenario is when we want to The laptop's audio enters the mobile phone as a microphone.so that Android apps detect it just like a headphone microphone. This is key if you want to use a text-to-speech program on your PC, a voice changer or any sound mix, and that on the phone all of that comes in as a microphone input.
There are two main paths: physical wired connection between the laptop's headphone output and the phone's microphone inputor resort to Bluetooth and special audio profiles that make the mobile phone see the PC as a microphone source. Each one has its technical and security drawbacks for the device.
Wired connection: PC headphone output to mobile phone microphone
Many people's intuitive idea is simple: Take a 3,5 mm cable and connect the laptop's headphone jack to the mobile phone's USB-C to headphone jack adapter. (or directly into the headphone jack if the phone still has one). However, simply doing so is not a good idea and can be risky for the phone.
The problem is that The mobile phone is waiting for a passive microphone signal.The phone's power supply uses a very low voltage, while the laptop's headphone jack is designed to power headphones with higher power. If you connect both directly, the phone will receive an excessively strong signal, and in the worst-case scenario, you could damage the adapter's input circuitry or the phone itself.
To do it right, the ideal thing to use adapters that separate the headphone and microphone lines at each endOn the PC side, the key is to get a volume-controlled line or headphone output; on the mobile side, you need to go in only through the microphone channel of a TRRS connector, not just a direct TRRS-to-TRRS cable.
In between, it's advisable to use a small attenuator or interface that reduces the signal levelThis ensures that the audio from the laptop reaches the phone at a volume similar to that of a normal microphone. Specific cables, such as "PC to camera/DSLR microphone" cables, or small mixing consoles, can perform this function and prevent unexpected issues.
This solution, although the most direct, has several drawbacks: You need to buy specific hardware, play with volume levels so that it doesn't distort and accept that it will still be an analog connection, with some noise and possible loss of quality.
Can Bluetooth be used to make a mobile phone see a PC as a microphone?
The other big idea is to try to get the PC to output audio via Bluetooth so that the phone detects it as if it were a voice input deviceOn a technical level, this would mean that one of the two devices would behave as a "hands-free" device (HFP/HSP profile), not just as a stereo speaker (A2DP profile).
The usual thing is that the The mobile device acts as the audio source and the PC as the receiver. (Bluetooth speaker). However, what we need here is just the opposite: for Windows to take the stereo mix or the voice changer audio and expose it through a hands-free profile that Android can use as a microphone.
In theory, this would be feasible if Windows existed a program that would allow you to select the stereo mix as source and it would appear in front of the phone with a Bluetooth microphone profile. The phone would think it had a hands-free device connected and could use it as an input device for TikTok or any recording app.
In practice, this solution is not so common. Many duplication programs and apps focus on sending stereo sound like music (A2DP)not in providing an HFP/HSP input to the phone. Furthermore, even if one is achieved, the The hands-free profile has lower audio quality and more compression. than a normal music channel, because it is designed for voice.
The advantage of this approach, if you manage to find the right tool, is that It could be free and wireless.The downside is that it requires quite a bit of fine-tuning with specific software and you have to accept that the quality won't be as high as with a well-tuned wired connection.
Streaming audio from Android to PC: basic options
In many situations, what we are looking for is just the opposite: send audio from Android phone to computer This allows you to use your PC speakers, record audio from your mobile device, or mix it with other sources. The most common methods are Bluetooth A2DP, USB, and Wi-Fi, often supported by apps like SoundWire, AirDroid Cast, ApowerMirror, LetsView, or AudioRelay.
Imagine a house party where you bring your Music on the phone but the phone's volume is too lowThe quick solution is to turn your PC into a speaker for Android: connect both devices via Bluetooth or USB, send the audio from your phone, and everyone can enjoy loud sound without needing a dedicated speaker.
Bluetooth streaming from Android to PC
Windows 10 and later versions offer an A2DP feature that allows The PC acts as a Bluetooth audio receiverWith it, you can pair your phone and play music directly through your computer speakers without any extra cables.
To use this method, you will normally need to have Windows updated and Bluetooth enabledFrom Settings > Devices > Bluetooth & other devices, enable Bluetooth on your PC, then on your mobile device, and pair them. In many cases, it's advisable to install an app from the Microsoft Store. Bluetooth audio receiver app that “listens” to the incoming A2DP sound.
Once installed, you select your phone within the application, tap on something like "open connection" and, as soon as the phone starts playing, The audio is sent to the PC in real timeIt's a very convenient solution for music, podcasts, or videos.
The drawbacks: this system It is not always ideal for tasks with high synchronization requirements. (such as gaming or precise monitoring) because it introduces some latency, especially if the computer's Bluetooth is not of good quality or there is a lot of interference.
Stream audio from Android to PC via USB with SoundWire
When you're particularly concerned about stability and latency, Connect Android and PC via USB It's one of the best options. The process is simple: you connect both devices with the cable, activate USB tethering on your phone, and let an app like SoundWire handle the rest.
Typical steps are: Connect the USB cable, and activate the USB tethering option in your phone's settings. and open SoundWire on both devices. On the PC, the app shows you a server address; on the mobile device, you enter that address and tap the connection icon.
When the state changes to “connected”, Any audio you play on Android is immediately redirected to the computerUseful if you want Record your computer screen with audioYou don't depend on Wi-Fi quality, there's no need to pair Bluetooth, and the response is usually much faster, ideal for videos or games.
Also, this method does not require an internet connection As such, a USB connection is sufficient. That's why many experts recommend USB as the most reliable method when seeking quality, low latency, and long-term stability.
Stream audio between PC and Android over Wi-Fi
Another widespread option is to use the Wi-Fi network to send audio between the computer and the phoneTools like SoundWire, ApowerMirror, LetsView or AirDroid Cast allow you to play sound on one device and listen to it on the other if both devices are connected to the same network.
In the case of SoundWire, for example, you install the app on Windows and Android, copy the server address that appears on the PC and you stick it on your phone. You tap the connection icon and, when the status changes to "connected", all the audio from the computer is sent to the phone or vice versa, depending on how you have it configured.
This Wi-Fi approach is ideal for stream music, watch movies, or use your mobile phone as a remote speaker in another room. However, the experience will depend heavily on the quality of the network: a congested or weak Wi-Fi connection will cause interruptions and delays.
That is why it is recommended, whenever possible, Connect the PC via Ethernet cable and use a 5 GHz Wi-Fi network instead of the typical 2,4 GHz band. This reduces latency and avoids interference, especially in homes with many connected devices.
Specialized apps for sharing audio between Windows and Android
Beyond general methods, there are applications designed for Send and receive audio between PC and Android with extra features such as low latency, remote volume control, use of mobile as a PC microphone or two-way audio.
A good example is AudioRelay, which allows you to use Use your mobile phone as a wireless speaker for your computer, as a microphone, or as an audio bridge to another device.There are also screen mirroring tools with sound, such as AirDroid Cast, ApowerMirror, or LetsView, which integrate audio functions alongside video.
AudioRelay: Turn your Android device into a PC speaker or microphone
AudioRelay is designed so that Turn your Android device into a wireless PC speakerBut it also supports other interesting use cases: receiving audio from the phone on the computer, sending sound from one Android to another, and using the mobile phone as a microphone.
Among its functions is the possibility of Receive all audio from your PC via Wi-Fi or USB with very low latencyThanks to codecs like Opus that compress sound without requiring much bandwidth, you can listen to music, movies, or play games on your phone while you're in another part of the house.
Also allows Use the mobile phone's microphone as an audio source for the PCand apply techniques to remove background noiseThis is useful if your computer doesn't have a microphone or if you prefer the quality and proximity of your phone's microphone. Additionally, you can share Android audio to another device using the "Android audio to another device" feature, available since Android 10.
The application offers advanced options such as Adjust the buffer, control the device volume from the PCYou can change the names of the devices and choose the sound quality. The Premium version adds extras such as playing on multiple devices simultaneously, playback controls from the notification, advanced latency settings, removal of microphone time limits, and no ads.
To minimize delays, AudioRelay recommends, where possible, Use USB instead of Wi-Fi and connect the PC via Ethernet. It also recommends using 5 GHz networks, as some phones are not optimized for low-latency audio and may introduce additional delay.
AirDroid Cast and Miracast: Screen and audio between Android, iOS and PC
When, in addition to audio, you want Share screen between mobile and PCThis brings solutions like AirDroid Cast or wireless standards like Miracast into play. The advantage of AirDroid Cast is that it supports bidirectional audio, meaning You can use your mobile phone's microphone and speaker from your PC during a meeting or a presentation.
The basic setup of AirDroid Cast involves installing the app in Android and on the computerOn your PC, you'll see a QR code and a nine-digit code; on your mobile device, select wireless mode and scan the code or enter the number. A transmission request will appear; accept it, and screen mirroring with audio will then be activated.
On the PC interface you will have two sound options: share multimedia sounds from the device or use the microphoneThis allows, for example, watching a video from your mobile phone on the big screen and commenting live using the smartphone's own microphone, all managed from your computer.
AirDroid Cast also supports USB connection For those experiencing network problems or preferring to minimize latency, this is especially useful in professional environments with congested Wi-Fi or during critical presentations.
On the other hand, Miracast is a wireless display standard Many PCs running Windows 8.1 or later support this feature out of the box. It allows you to mirror your Android screen on your computer with audio, although it requires compatible graphics and network cards.
Check if your PC supports Miracast
Before you jump into Miracast, it's a good idea to confirm that the The equipment meets the requirementsYou need a modern Windows (8.1 or later), a Miracast-ready graphics card, and a wireless network card that supports the standard.
To check your Windows version, you can press Press Win + R, type “winver” and click OKThere you will see the edition and version of the operating system, which tells you if you meet the minimum requirements.
If you want to check the graphics card's compatibility, press again. Win + R, type “dxdiag” Save all the information from the DirectX diagnostic tool. In the generated text file, look for the Miracast section and check if it says something like "Available, compatible." If not, you'll need to update your drivers.
For the wireless network card, a quick way is to open Windows PowerShell, run the command Get-NetAdapter | Select Name, NdisVersion and check the NdisVersion value associated with your Wi-Fi interface. If it's 6.40 or higher, that's a good sign; if not, you probably need newer drivers or a new network card.
If the graphics card or network is not compatible, Miracast will not work correctly and you'll have to resort to alternative solutions like AirDroid Cast, ApowerMirror or the classic HDMI cable from your mobile (when available).
How to use Miracast and other apps to mirror Android to PC with audio
When your PC supports Miracast, the process for Projecting Android with sound is quite simpleOn your computer, go to the Action Center, select the Connect or "Project to this PC" option, and configure it to be available everywhere, with your preferred security level.
On your mobile, you enter Settings > Connections or Devices > Wireless Projection / Cast / Mirror ScreenDepending on the brand, manufacturers use different names: Huawei calls it Wireless Projection, while others simply call it Cast or Wireless Display.
Once the feature is activated, your phone will search for nearby devices and display your PC in the list. Select it, accept the request that appears on your computer, and instantly... You'll have your mobile phone screen on the monitor with synchronized audio..
Other apps like ApowerMirror also take advantage of Chromecast-like services or proprietary features from some manufacturers. On Android devices that integrate the Chromecast service, for example, you can Swipe down the notification bar, tap Send or CastChoose your PC (if it's running ApowerMirror) and start mirroring with sound.
Modern Xiaomi models offer a "Wireless Display" option, which performs a similar function and allows send both image and audio to the PCprovided that the computer software is prepared to receive the signal.
Stream audio from PC to Android via Bluetooth and SoundWire
If what you need is send audio from computer to phone Without wires, there are two commonly used methods: direct Bluetooth pairing (when the PC acts as the transmitter and the mobile phone as the receiver) and the use of apps like SoundWire over Wi-Fi.
In classic Bluetooth mode, you will Settings > Devices > Bluetooth & other devices in WindowsYou pair the Android device and, once connected, select the phone as the audio output destination. This way, whatever is playing on the PC is sent to the phone, where you can listen with headphones or the internal speaker.
With SoundWire, the process is very similar to that of audio from Android, but in reverse: You install the app on your PC and mobile device, and connect both to the same Wi-Fi network.You copy the server address from your computer and enter it into your Android device. When you tap "connect," your phone becomes a remote speaker for your PC.
This setup is great for listen to the computer from another roomYou can monitor recordings or even set up a makeshift home sound system. Again, the quality will depend heavily on the stability of your Wi-Fi network and the compression options you choose.
Stream audio from your Android phone to a TV
Another very common variation is when we want send only the audio (or audio and video) from the mobile phone to the televisionAlthough many modern TVs already support Chromecast built-in or Miracast, there are specific apps that make sending music easier, such as HI-FI Cast.
The typical workflow involves installing Hi-Fi Cast on Android and connect your mobile and television to the same Wi-Fi networkThen you open the app, grant permission to access media files, and enter its main menu.
Within the application's options, look for "playback devices", where Your TV's name should appear.You select it, play some music on your phone, and the television takes care of outputting the sound through its speakers, as if it were an advanced wireless speaker.
This type of solution is very convenient for play music playlists, online radio or podcasts without having to move cables or physically connect the mobile phone to the TV each time.
Limitations of native Windows and Android functions
Although there are many tools for sharing screen and sound between devices, Not all the built-in features in Windows and Android work to redirect audio the way we want.One example is the integration of multimedia controls between Windows 10/11 and some mobile phones, which allows you to pause or change songs from the PC, but does not make the phone's sound play on the computer.
Sometimes, the only option is Send feedback to Microsoft or the manufacturer To suggest new features, you can use the Windows Feedback Hub. However, there's no guarantee they'll implement exactly what we need in the short term.
It's also worth remembering that many screen mirroring programs They do not include Android to PC audio by default.and that you need specific alternatives like LetsView, which takes advantage of the built-in Miracast protocol to send both image and sound.
On the Android side, tools like Quick Share (in some ecosystems) focus primarily on exchange files between mobile and PCnot in transmitting audio in real time. So, for advanced uses, we almost always end up relying on third-party apps.
With this whole range of options—cables with attenuators, Bluetooth with audio profiles, USB with tethering, Wi-Fi with streaming apps, standards like Miracast, and solutions like AudioRelay, SoundWire, AirDroid Cast, or ApowerMirror—it's possible Set up virtually any audio scenario between Windows and AndroidFrom using your laptop as a voice changer for TikTok on your mobile to turning your phone into a remote speaker or microphone for your PC, as long as you choose the right method and take into account the limitations of each technology.
