Use your phone
as a Windows mic
The external PC mic you already own — high-quality, low-latency.
Windows Integration
What Micstream does
Micstream installs a tiny driver that makes your phone appear like a standalone microphone on Windows — recognized by Zoom, Discord, OBS, or any other Windows application.
It also removes background noise: DeepFilterNet, an AI noise-cancellation model, runs on your PC and filters out keyboard clicks, fans, and room noise. It's on by default and free.
Audio Input Settings
Built-in Microphone
Available
Micstream
Default Device
Comparison
Unmatched audio quality
The audio format of your PC microphone app matters. Most apps use 16-bit audio.
Micstream hands your phone's audio to Windows as 32-bit floating point at 48 kHz.
| Micstream | AudioRelay | WO Mic | |
|---|---|---|---|
| 32-bit | 16-bit | 16-bit | |
| Floating point | Integer | Integer | |
Channels | Stereo | Stereo | Mono |
Professional Quality | × | × |
Built for professionals
Content creators need studio-quality audio
Streamers can't afford distortion during exciting moments
Remote workers need crystal-clear communication
Simple Setup
Installation in 3 simple steps
1
Download Windows Client
Installs a custom driver that creates a "Micstream" input device.
2
Select Micstream
Choose "Micstream" as your microphone in Zoom, Discord, OBS, or any other application.
3
Connect Your Phone
Open the app and connect to Windows via Wi-Fi, or USB cable on Android.
Ready to upgrade your audio?
Join thousands of users who've ditched expensive microphones for their smartphone.
Have Questions?
Frequently Asked Questions
Micstream supports Windows 10 and Windows 11.
Linux is supported: the client registers a PipeWire virtual microphone — no driver needed — on any current distribution (Ubuntu, Debian, Fedora, Arch). The macOS client is in development.
Read the Linux setup guide →Yes. The iPhone app is on the App Store and needs iOS 18 or newer. It connects over Wi-Fi; a USB connection is currently Android-only.
Read the iPhone setup guide →Yes. Any modern Android device will work. Flagship phones usually provide better audio quality.
To make Windows treat your phone like a hardware microphone, Micstream needs to create an actual microphone device. Our driver does exactly that — it creates a virtual mic device that seamlessly integrates with apps like Discord, Zoom, Google Meet or OBS.
No. The driver runs alongside your existing audio devices without affecting them. Micstream simply adds a new, virtual microphone to your system.
USB provides ultra-low latency—often under 10ms on high-end devices. Wi-Fi performance varies based on signal strength and network conditions, so latency may be higher.
Read the full setup guide →Yes, depending on your phone. Many phones have built-in microphones that already beat budget USB mics. Most USB mics around $70 record in 16-bit, while flagship phones often record in 24-bit. Micstream never downsamples the audio and hands it to Windows as 32-bit float at 48 kHz, so you can get professional-quality sound.
See the OBS setup guide →Micstream delivers the audio to Windows as 32-bit floating point at 48 kHz. It is never downsampled.
Yes. The Windows and Linux clients include DeepFilterNet, an AI noise-cancellation model that filters out keyboard clicks, fans, and room noise before the audio reaches your apps. It runs on your computer, not your phone, is on by default and free, and you can switch it on or off from the phone app while streaming.
Yes. You can adjust your device's volume settings, effectively controlling gain. Future updates may offer more advanced audio controls.
No audio content is ever transmitted to our servers or stored — all audio stays between your devices on your local network. The software sends pseudonymous reliability diagnostics (version info, connection quality, error codes) to our own EU servers to help us detect and fix issues. No personal data, usernames, file paths, or audio is included. See our Privacy Policy for details.
Just choose "Micstream" in your application's audio or microphone settings. Most apps automatically recognize it as a valid input device.
Yes. You can still use your phone for other tasks while it's serving as your PC mic. Our app runs in the background without disrupting regular phone usage.