Pick the apps, not just the device.
Expand a device to see every app playing sound, each with its own checkbox and volume. Leave Discord off your speakers and Spotify on.
Speakers, Bluetooth headphones and a USB headset, all playing together. No drivers, no virtual cables.
Tick a device and mirroring starts. Untick it and it stops. There is no start button.
Expand a device to see every app playing sound, each with its own checkbox and volume. Leave Discord off your speakers and Spotify on.
50 %×50 %=25 %
Device volume and app volume stack, so fine balance takes one drag.
Your selection is remembered per device and restored when it comes back.
Closing the window keeps it running. A global hotkey turns every mirror on or off.
Follows your Windows display language, or pick one in Settings.
English, German, French, Spanish, Italian, Portuguese (Brazil), Dutch, Polish, Russian, Ukrainian, Turkish, Czech and Swedish.
USB DAC to HDMI monitor, 20 seconds per setting, no dropouts. Pick the buffer in Settings.
Bluetooth headphones add 100 to 200 ms of their own that no software can remove.
| Buffer | Min | Avg | Max |
|---|---|---|---|
| 20 ms | 16 ms | 24 ms | 40 ms |
| 30 ms (default) | 24 ms | 32 ms | 45 ms |
| 50 ms | 41 ms | 51 ms | 62 ms |
Straight into the notification area, mirrors restored.
Follows Windows and your accent colour, or pick one.
Lower for sync, higher for weak USB hubs.
Automatic, notify only, or never.
Audio Mirror plays sound like any other program, so a recorder may pick it up too. What we measured:
OBS "Desktop Audio" records one device. The mirror plays on a different one and never shows up.
Discord screen share with desktop audio catches the mirror as well. Audio arrives twice and voice chat echoes back.
Free and open source. For Windows 11, or Windows 10 build 20348 and later, on x64 and ARM64.
The files are not code-signed, so Windows may say "Windows protected your PC". Click More info, then Run anyway.
All releases and changelog