Patchby tonal.fm
Buy · $39Download

Virtual mic and audio router for Mac

Play any app into your call.

Pick what your call should hear. Patch sets up the rest.

Download free trialBuy · $39

On your phone? Email yourself the link

macOS 26+ · Apple silicon

Set up in three steps.

Then say hello, press play, and Patch tells you it heard both.

  1. 1

    Pick what your call hears

    Music, Spotify, a YouTube video, a podcast, a game or any other app. Your voice is always in.

  2. 2

    Say yes to your Mac

    Patch needs a few things from macOS. Each one asks once.

    • Add Patch MixAdded
    • Let Patch hear your microphoneAllowed
    • Let Patch hear MusicAllowed
  3. 3

    One click in Zoom, Microsoft Teams, Google Meet, Webex, Slack or Discord

    Choose Patch Mix as your microphone. Patch ticks it off itself.

    Tap a step to see it again.

Patch Mix shows up wherever you can pick a microphone.

Guided setup is built in for Zoom, Meet, Discord and OBS. Everything else works the same way: choose Patch Mix as the mic.

  • ZoomGuided setup
  • Google MeetGuided setup, in Chrome
  • Microsoft TeamsPick Patch Mix as the mic
  • WebexPick Patch Mix as the mic
  • Slack huddlesPick Patch Mix as the mic
  • DiscordGuided setup
  • OBS StudioGuided setup
  • Any appwith a microphone menu

Great uses for Patch

Any mix of sources, into any call. Six setups people reach for, each saved once as a scene.

UP TO 4 APPS + YOUR MICANY APP WITH A MIC MENU
Patch MixOne virtual microphone
−60−24−12−60 dB
MicrophoneYour voice
MusicApp
Google ChromeApp · all tabs
Your appThe one you’re demoing
A gameApp
Pass-ThruApps with an output menu
ZoomClasses and workshops
Google MeetProduct demos
DiscordPodcast guests
OBS StudioStreams and recordings
HeadphonesOnly you hear this
01

Play music to podcast guests

Put your mic and your intro music in one input, then pick Patch Mix in Discord or Zoom. Guests hear the show as it plays, never their own voices echoed back.

02

Show clips in a class

Play videos from Chrome into a workshop on Zoom, Teams or Webex without sharing your screen’s sound. Rehearse the level in your headphones before the call hears it.

03

Demo an app with its sound

Let people hear the product, not just see it: alerts, playback, voice features. Your narration and the app arrive as one clean input.

04

Stream with one clean input

Give OBS a single source with your voice and your game or browser at the levels you set, with a limiter keeping peaks in check.

05

Bring in any app with Pass-Thru

Apps that let you choose a speaker, like a DAW or a soundboard, can play into Patch Pass-Thru and on into your call.

06

Cue tracks in private

Turn Send off and Hear on, and a source plays only in your headphones. Line up the next track while the call hears just you.

Want the whole desk?

Open the full patch any time. Four apps at once, a level for each, choose what the call hears and what only you hear, and keep setups for next time.

  1. 1

    Add your sources

    Your microphone, up to four apps and Patch Pass-Thru. Each gets its own level and meter.

  2. 2

    Choose who hears what

    Drag a cable from a source to Patch Mix to put it in the call. Tap its headphones button to hear it yourself. Use either, both or neither.

Everything Patch does

Try all of it free →
Mix

You decide what the call hears.

Mic plus four apps

One microphone and up to four apps, each captured on its own.

Send and Hear, per source

Put a source in the call, in your headphones, or both.

Levels and meters

−60 to +6 dB per source, a master fader and stereo meters.

Preview before going live

Hear the whole mix while the call hears silence.

Scenes

One setup per kind of call. Switch mid-call and shared sources keep playing.

Menu-bar control

Mute, switch scenes or stop with the window closed.

Protect

Guard rails for live calls.

−1 dBFS limiter

A fixed ceiling on the way out, with a light that shows when it’s working.

No echo for guests

The call app’s own sound is kept out of the mix.

Never swaps your mic

If your mic drops, the call hears a pause, not your laptop mic.

Headphones out, sound stops

Local listening pauses, so a clip never blasts from your speakers.

Updates wait

An update never installs in the middle of a session.

Private

Nothing recorded or uploaded.

No account

Buy, activate and go. No sign-up, no password.

No analytics, no telemetry

Patch doesn’t track how you use it.

Captions on device

Live captions of what the call hears, made on your Mac and never saved.

Online twice, on purpose

Only to activate your licence and to check for updates.

Clean uninstall

Settings → Uninstall removes the app, its audio component and Patch Mix.

Questions

Do I need to be technical?

No. Patch asks what your call should hear, then walks you through the two things your Mac needs: adding Patch Mix and letting Patch hear your microphone and your app.

Which apps can I send audio into?

Any Mac app that lets you choose a microphone, such as Microsoft Teams, Webex or Slack. Patch includes guided setup for Zoom, Google Meet in Chrome, Discord and OBS.

How do I play music through my mic?

Add Music, Spotify or your browser as a source, turn on Send, and choose Patch Mix as the microphone in your call app. The call hears your voice and the music together, at the levels you set. Step-by-step guide

Can I send just one browser tab?

Not yet. An app source includes all its tabs and windows. Run the call in one browser and play clips from another.

What happens when trial time runs out?

The call stays up. After 20 minutes of a session, what the call hears drops out for one second every 20 seconds until you stop. What you hear yourself is untouched, and the next session starts clean.

Can I get a refund?

Yes. Email support@tonal.fm within 30 days of buying and we refund you in full. The refund ends the licence, so Patch goes back to the trial after its next licence check.

Does Patch record or upload audio?

No. Nothing is recorded and your audio never leaves your Mac. Captions are optional, made on device and never saved.

Will installing it interrupt a call?

Installing the audio component pauses your Mac’s sound for about a second. Do it between calls.

How do I remove it?

Settings → Uninstall removes the app, its audio component and the Patch Mix device.

Do I need BlackHole or Soundflower?

No. Patch installs its own audio component, which adds two devices: Patch Mix, the virtual microphone your call app listens to, and Patch Pass-Thru, a virtual speaker for apps that let you choose an output. BlackHole alternatives

How is Patch different from Loopback or BlackHole?

BlackHole is a free virtual audio driver with no mixer, so combining it with your mic means building devices in Audio MIDI Setup. Loopback is a bigger, more flexible router for any routing job. Patch does one job: your mic and up to four apps, mixed and limited into one virtual mic, with guided setup for Zoom, Meet, Discord and OBS. Compare Mac audio routers

More questions and fixes on the support page

Get Patch

$39 once, for up to three of your Macs. No subscription, no account, no expiry, and a full refund within 30 days.

Download free trialBuy · $39

How the trial works

Every session is full quality for 20 minutes, then what the call hears drops out for one second every 20 seconds until you stop. It never cuts a call.

Requirements

A Mac with Apple silicon, running macOS 26 or later. Installing takes a minute and pauses your Mac’s sound for about a second.

Version 1.5.0

Updates arrive inside the app with their release notes, and never install in the middle of a call.