Download Halo
Voice show-calling for grandMA3. Free: no account, no license key, no subscription. Version v1.0.0.
The download goes live on launch day. Until then, watch the demos or read the Getting started guide.
Open Halo the first time
Halo is not notarized by Apple yet, so the first time you open it macOS shows a warning such as "Apple could not verify Halo is free of malware" or "Halo can't be opened because Apple cannot check it for malicious software." This is a one-time step. Do not move Halo to the Trash. Pick the route for your macOS version (Apple menu > About This Mac).
macOS 15 Sequoia or later
- Try to openDouble-click Halo in Applications. When macOS warns you, click Done.
- Open Privacy & SecurityApple menu > System Settings > Privacy & Security. Scroll down to Security.
- Open AnywayNext to the message about Halo, click Open Anyway. Enter your Mac password if asked, then click Open Anyway again.
On Sequoia the right-click route no longer works. Use Settings.
macOS 14 Sonoma or earlier
- Control-clickIn Applications, Control-click (or right-click) Halo and choose Open.
- ConfirmIn the dialog, click Open.
- If you only see CancelClose the dialog and use the System Settings route (Open Anyway) instead. It works on every version.
Then allow the Microphone when Halo asks (audio stays on your Mac), and allow Local Network if grandMA3 runs on another computer. After that, Halo opens normally.
System requirements
- MacApple silicon (M1 or newer). Intel Macs are not supported.
- macOSmacOS 12 Monterey or later.
- grandMA3grandMA3 onPC 2.5 on the same Mac or another computer on your network, or a grandMA3 console on the same network.
- MicrophoneBuilt-in, headset, USB or an audio interface (including Dante Virtual Soundcard or SoundGrid). A wired mic is recommended.
- Disk spaceAbout 1.5 GB free. The speech models are included, so no internet is needed to run it.
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