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Open Source · Windows, macOS, Linux & Android · by Degird

Use Your Phone as a PC Microphone, Speaker, or Wireless Headset

SoundPush routes audio between your computer and your phone — over Wi-Fi or USB, encrypted end to end, with no account and nothing sent to a server.

Hear your PC's sound on your phone. Talk into your phone and have Zoom, Discord, or OBS hear it as a microphone. Do both at once and your phone becomes a wireless headset. Or send an Android app's audio to your computer. Pair once with a QR code and the two devices find each other from then on. SoundPush is free, open source under the GPL, and has no ads and no telemetry.

Download from GitHub
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Free & open source · GPL-3.0 · Early preview (0.1) · No account, no ads, no telemetry

One App, Four Jobs

Every Direction Audio Can Go

Most tools do one of these. SoundPush does all four from the same pair of apps, and you can start any of them from either device.

PC Audio on Your Phone
Phone as PC Microphone
Phone as Wireless Headset
Phone App Audio to PC

Who It's For

Who Uses SoundPush?

Anyone who has a phone in their pocket and a computer that's missing something — a microphone, a headset, a long cable, or just a better speaker.

Remote Workers Without a Good Mic

Your laptop's built-in microphone picks up the fan, the keyboard, and the room. Your phone was built to carry a voice clearly. SoundPush feeds the phone's microphone into a virtual microphone on the computer, so Zoom, Google Meet, Teams, or Discord hear it like any other input device — no new hardware and no cable across the desk.

People Who Want to Walk Away From the Desk

Put your phone in your pocket, plug in its earbuds, and keep listening to the call or the video while you move around the house.

Gamers & Streamers

Send the computer's sound and your voice together in one stream, each with its own level — commentary over a game without a mixer.

Late-Night Listeners

Watch a film on the computer and hear it through headphones plugged into your phone, so nobody else in the room has to.

Anyone With Phone Audio Worth Sharing

Play an Android app's audio — a podcast, a music app, a voice note — through the computer's speakers instead of the phone's small one.

Developers & Tinkerers Who Want to Read the Code

Audio is personal. The whole project — a shared Rust engine, a Tauri desktop app, and a Kotlin Android app — is public under the GPL, with its protocol, threat model, and architecture decisions documented alongside it. If you want to know exactly what happens to your voice between the phone and the computer, you can read it, build it yourself, and contribute to it.

Core Features

What SoundPush Does

The four audio routes, the connection options that make them work on real networks, and the privacy model underneath — without a cloud service in between.

01 / 08

Hear Your Computer on Your Phone

Choose Listen on phone on the computer, or Listen to computer on the phone, and the computer's sound plays through the phone. Mute the PC's own speakers while you stream so only the phone plays. It is the simplest way to use your phone and its headphones as a speaker for your computer.

Simple Workflow

How SoundPush Works

Install it on both devices, pair them once, and pick a task. From then on the paired devices reconnect by themselves whenever they share a network.

01

Install on Both Devices

Download the installer for your computer and the APK for your phone from GitHub Releases. Put both on the same Wi-Fi, a hotspot, or USB.

02

Pair With a QR Code

Choose Pair on the computer and scan the code with the phone. No camera? Type the computer's address and compare six-digit codes instead.

03

Pick a Task

Listen on phone, use phone as microphone, use phone as headset, or hear phone audio. Start it from whichever device is in your hand.

04

Stream and Adjust

Watch quality and delay live, change the volume, mute the PC's speakers, or stop the stream from the phone's notification.

Pricing

Free and Open Source.
No Catch.

SoundPush has no paid tier, no account, and no ads. The source code is public under the GNU General Public License, version 3 or later.

Open Source

Everything Included
$0

GPL-3.0-or-later

Both apps, every audio route, every connection mode, and every future update — published openly on GitHub.

Desktop app for Windows, macOS, and Linux
Android app for Android 8 and newer
PC audio to phone, phone as mic, phone as headset
Phone app audio to a computer (Android 10+)
Up to eight listeners at once
Wi-Fi, hotspot, or USB tethering
End-to-end encryption and per-device permissions
Signed automatic updates on desktop
Download from GitHub
Star or Fork the Repo

SoundPush 0.1 is an early preview published as a GitHub pre-release. It has been tested by a person on Windows 11 (x64) and an Android 12 phone; the Linux, macOS, and Windows on ARM builds pass automated tests but haven't been used by a person yet — reports are welcome.

Full Feature Set

The Details That Make It Usable

Small things, but they decide whether an audio tool is something you reach for every day or something you uninstall after the first crackle.

Audio + Mic in One Stream

Send the computer's sound and your voice together, each with its own level.

Mute PC Speakers

Stream to the phone while the computer itself stays silent.

Virtual Microphone Setup

One click installs the right virtual mic for your operating system.

USB Tethering Mode

The lowest delay, and it works on networks that block device discovery.

Connection Types

Automatic, Wi-Fi only, TCP only for strict networks, or USB only.

Noise Suppression

RNNoise cleans up the microphone before it reaches your call.

Automatic Reconnection

Paired devices find each other again whenever they share a network.

Per-Device Permissions

Decide which paired device may use your microphone, and when.

Discovery Controls

Visible to everyone, paired devices only (default), or nobody.

Quick Settings Tile

Start and stop streaming on Android without opening the app.

Tray App

Runs quietly in the tray, can start with the computer, one instance only.

Stable Error Codes

Every message has a code like SP-NET-004, listed with its fix.

Signed Updates

Desktop updates are signed; Stable rolls out in stages, Beta gets them first.

No Cloud Relay

Audio goes device to device on your network — never through a server.

GPL-3.0 Licensed

Free to use, study, change, and share under the GNU GPL.

Built in the Open

Protocol, threat model, and design decisions are all public.

Privacy by Design

Your Voice Goes Device to Device, Never Through a Server

A microphone app is about as personal as software gets, which is why SoundPush has no server to send anything to. Audio travels only between the devices you paired, encrypted with keys those devices exchanged when you scanned the QR code. There are no accounts, no analytics, no advertising or crash-reporting SDKs, and SoundPush doesn't record audio — it streams it live and stores nothing.

What leaves your devices, and only this:

Streams to your paired devices — on your own network or USB link, end-to-end encrypted with QUIC and TLS 1.3
A daily update check — a small version file from GitHub Releases, which you can turn off in Settings
The VB-CABLE installer — on Windows, and only when you choose Install VB-CABLE yourself

No accounts. No ads. No telemetry. Diagnostics are written to your own disk and shared only if you attach them to an issue yourself.

Why We Built It

Because the Best Microphone You Own
Is Already in Your Pocket

Almost everyone who works from a laptop has the same small problem at some point. The call starts, and the built-in microphone turns out to be a fan with a voice somewhere behind it. Or the headset is in another room. Or the film needs sound and everyone else is asleep. And all the while there is a phone on the desk with a better microphone, a headphone jack or a pair of earbuds, and a Wi-Fi connection to the same router.

The tools that connect the two tend to ask for too much. An account for something that never needs to leave the room. A cloud relay for audio travelling two metres. A free tier with ads, or a closed app you are trusting with the microphone. Nothing about sending sound from one of your devices to another requires any of that.

So SoundPush does the whole job on your own network. Pair the two devices once, and they talk directly — encrypted, permissioned, and with nothing in between. The code is public under the GPL because an app you let near your microphone should be one you are allowed to read. It is young, and we are honest about that: tell us what breaks on your hardware and it gets fixed in the open.

Uses What You Own

Your phone becomes the microphone, speaker, or headset you were missing.

Stays on Your Network

Wi-Fi, hotspot, or USB — audio never goes out to the internet.

Encrypted End to End

Keys exchanged at pairing; every stream authenticated and encrypted.

No Account

Nothing to sign up for, and nothing tied to your identity.

Open Source

GPL-licensed, with the protocol and security model documented.

Built With Its Users

An early preview shaped by the issues people open.

FAQ

Frequently Asked Questions

Get Started

Turn Your Phone Into the Audio Gear You're Missing

Download SoundPush for your computer and your phone, pair them once, and pick a task. It's free, it's open source, and your audio never leaves your own devices. Found something that doesn't work on your hardware? Open an issue — that's how the early preview gets better.

Download from GitHub
Report an Issue

Free & open source · Windows, macOS, Linux, Android · Wi-Fi or USB · No account