A free virtual audio driver for Mac. It adds an audio device that every app treats as an ordinary microphone — so you can mix your voice, system sound, music and video audio into a single feed and send it to Microsoft Teams, Telegram, Discord, Zoom or anything else with a mic input. 37 KB, signed and notarised by Apple.
Meeting apps let you pick exactly one microphone, and that microphone is normally just your voice. Anything else you want the other side to hear — a track, a video, the sound of the app you are demonstrating — has to be held up to the mic or shared through a separate screen-share that often drops the audio. A virtual audio device removes that limit: you mix the sources first, and the call receives the finished mix as if it were a plain microphone.
Voice and track arrive together, at the levels you set, without the other side hearing a laptop speaker through your microphone.
System sound goes into the same feed, so a demo, a video or an alert is heard exactly as you hear it — not through the room.
Screen sharing frequently sends picture only. Route the clip's audio into the virtual device and it travels with your voice.
Interviewing someone in the same room, or using a headset plus a desk mic — both can feed a single output.
A recorder pointed at the virtual device captures one track that already contains every source you mixed.
Most messengers expose a microphone dropdown and nothing more. That dropdown is all this driver needs.
The driver registers itself with CoreAudio, the part of macOS every application asks for audio devices. Nothing needs to be integrated app by app: the virtual device simply appears in the microphone list beside your real one.
Microsoft Teams
Telegram
Discord
Zoom
Google Meet
WhatsApp
OBS Studio
Slack
Webex
JitsiThe installer is 37 KB. It carries an Apple Developer ID signature and has been notarised by Apple, so macOS opens it without a Gatekeeper warning.
The driver is placed in the system audio plug-in folder, /Library/Audio/Plug-Ins/HAL, which is why macOS asks. No restart into recovery mode, no security settings to weaken.
Open the audio settings of Teams, Telegram, Discord, Zoom or whatever you are calling from and choose SplitCam Virtual Audio in the microphone list. Everything mixed into it now travels down that channel.
A virtual audio device is a driver that adds an audio input to macOS which has no hardware behind it. Applications cannot tell the difference — CoreAudio hands them the same kind of device description it would for a USB microphone, so the virtual one turns up in the microphone dropdown next to your real hardware.
What makes it useful is that its input side is open. A mixer — SplitCam, for example — can pour several signals into it at once: your voice, the sound the Mac itself is playing, a music player, the audio of a clip you are showing. The application on the other end still believes it is listening to one plain microphone.
This is a CoreAudio HAL plug-in, not a kernel extension. It runs in user space, needs no reduced-security boot and can be removed by deleting a single folder.
M1, M2, M3, M4 and newer. The driver is built for arm64 only — Intel Macs are not supported.
The same baseline as SplitCam for Mac.
Needed once, to write into the system audio plug-in folder.
No account, no subscription, no watermark on anything it carries.
Free download. 37 KB, signed and notarised by Apple. Apple Silicon, macOS 12 or newer.
Everything worth knowing before you install it.
Software that adds an audio device to macOS with no hardware behind it. Applications cannot tell it apart from a real microphone — it appears in the microphone list like any other input, so whatever is routed into it can be sent to a call, a stream or a recording.
Macs with Apple Silicon — M1, M2, M3, M4 and newer — running macOS 12 Monterey or later. The driver binary is built for arm64 only, so Intel Macs are not supported.
Usually not. The macOS application already contains this driver and installs it for you. The standalone package exists for the cases where the audio device has to be installed or repaired on its own.
No. It is a CoreAudio HAL plug-in that lives in /Library/Audio/Plug-Ins/HAL and runs in user space. There is nothing to allow in Recovery mode and no reduced security setting to turn on.
The system audio plug-in folder belongs to macOS, so writing into it requires administrator rights. The package is signed with an Apple Developer ID certificate and notarised by Apple, which is why Gatekeeper lets it through without a warning.
Delete SplitCamVirtualAudio.driver from /Library/Audio/Plug-Ins/HAL, then restart the Mac or the audio service. The virtual device disappears from the microphone list.
Yes — SplitCam provides a virtual camera on the same principle, letting a composed scene stand in for your webcam in Zoom, Teams, Meet and dozens of other applications.
No. The driver is free, as is SplitCam itself. There is no account to create, nothing to subscribe to and no watermark placed on the audio.
Teams
Telegram
Discord
OBS