StompLink
Guide
Use your Stomp device or any audio interface on FaceTime and Zoom
StompLink isn’t tied to one pedal, but your Stomp device does need to connect to your Mac as an audio interface, like the HX Stomp. Any Core Audio device that shows up in macOS Sound settings (an audio interface, amp modeler, multi-effects unit or USB amp) can feed FaceTime or Zoom and play the call back to you. The HX Stomp is just one example.
Which devices work
Your Stomp device must work on your Mac as an audio interface: connected over USB (or Thunderbolt) and listed in System Settings › Sound, either class-compliant or using its maker’s driver. If your device appears under Input or Output in System Settings › Sound, StompLink can use it as a source, a destination or both. Examples include Line 6 HX Stomp, Focusrite Scarlett, Universal Audio Volt, Neural DSP Quad Cortex, Fractal Audio Axe-Fx III and FM3, and Positive Grid Spark. Your Mac’s built-in mic and speakers work too.
A plain analog pedal with no USB audio can’t connect on its own. Plug it into an audio interface and use the interface as your Stomp device. StompLink adds its own virtual device for calls; it doesn’t replace your hardware’s own driver.
Step 1: Check that macOS sees it
Connect the device and open System Settings › Sound. Some devices need their maker’s driver or a USB audio mode switched on. Check the maker’s manual if it doesn’t appear.
Step 2: Pick the right input channels
Your device appears in StompLink under Sources. Many interfaces and modelers send more than one pair of channels over USB, for example a dry guitar signal and the processed tone. Choose the channel pair that carries the sound you want the other person to hear. Your device’s manual lists what each USB channel carries.
Step 3: Make StompLink the call’s mic and speaker
In FaceTime (Video menu) or Zoom (Settings › Audio), choose StompLink as the microphone and the speaker. Under Destinations › Call, switch your device’s feed on, plus your mic if it’s a separate source.
Step 4: Hear the call through the same gear
Add your device as an output under Destinations and switch the call’s feed on for it. The other person now comes through your device’s headphone jack or outputs, next to your guitar. By default your own gear isn’t sent back to your gear, so you don’t hear yourself twice.
Direct monitoring vs monitoring through StompLink
If your interface or modeler has direct monitoring, keep hearing your guitar that way for the lowest latency, and let StompLink handle the call, the apps and the recording. Several outputs can run at once, for example your Stomp device and AirPods.
Example: an HX Stomp
As one example, an HX Stomp connects over USB and appears in Sound settings. In StompLink, select it as a source, choose the USB channel pair your preset sends the processed tone to (check the device’s manual for its USB routing), and add it as an output so the call plays through its headphone jack. Every other Core Audio interface follows the same steps.
Troubleshooting
The meter moves but the call can’t hear my guitar
Check that the device’s feed is on for the Call destination and that the call app’s microphone is StompLink, not the device itself.
My guitar is only in one ear
Your guitar may arrive on a single channel. Choose a different channel pair for that source.
The other person hears an echo of themselves
Check that the call’s own source isn’t switched on for the Call destination. It’s off by default. Also check that your call app’s speaker is set to StompLink, not straight to your Mac speakers, where your mic could pick it up again.
AirPods feel late when I play
Bluetooth adds delay. AirPods are fine for listening to the call, but for playing along use wired headphones or your Stomp device’s headphone jack. You can keep both as destinations and switch either one off.
StompLink is an independent product and isn’t affiliated with or endorsed by Line 6 or any other maker listed here. Product names are trademarks of their owners.
Try StompLink
$24 one-time for one Mac at a time. Launch price: $19 for the first 60 days. For macOS 26 Tahoe or later.