Bidirectional sync between the Elgato Wave hardware mute button and OS-level mute (via a keyboard shortcut)

Requirements

• Elgato Wave Link
• Keyboard Maestro
  • Import the macros in the macros directory
• nvm
• Zoom (optional)
  • Ensure the Mute/Unmute My Audio keyboard shortcut is set to its default (⇧⌘A) and is enabled globally

Install packages

nvm use
corepack enable
pnpm install

Ensure the Wave Link application is running and the microphone is connected, then run

pnpm start

Assumes the microphone is unmuted when launched, however, you can override this with the --muted flag

When active, use ⌃⇧⌘A or the hardware mute button on the Elgato Wave to toggle mute and they'll stay in sync (and keep Zoom in sync, too)

Many actions that manipulate the Wave hardware are indistinguishable from legitimately toggling the hardware mute button, e.g.,

• Pressing the dial button to cycle between gain/monitoring volume/monitoring balance adjustment
• Updating some settings in the Wave Link application, e.g., Wave gain lock
• Saving settings to hardware in the Wave Link application

As a workaround, you can ⌃C the ts-node process and restart it to match the actual hardware mute status by optionally passing the --muted flag

Muting via the Zoom UI itself isn't registered by the application nor hardware: Zoom will be muted at the software level, but the hardware will remain unmuted

Simply toggle mute via ⌃⇧⌘A or the hardware mute button a couple of times to put everything back in sync

Thanks to

• Stephen Millard (@techflare) — Mute Your Microphone with Keyboard Maestro (2018)
• Matt Aitchison — https://github.com/mattatcha/touchportal_elgato-wave (2020)