Hush for Mac

Your voice.
Not your music.

A clean microphone for Discord, Zoom, Meet and OBS. Hush processes your voice through Apple's filter, so people hear you and not what your Mac is playing.

Free and open source · macOS 14 or later

The Hush menu open in the macOS menu bar, with its microphone and sent-to-apps meters

How Hush cleans your microphone

  1. When your Mac plays music, the microphone picks up the sound from your speakers.
  2. Then, you start talking. The mic can't tell your voice from the song.
  3. Without Hush, your audience hears both. Your playlist, the video, the game.
  4. Hush turns on. Apple's voice processing removes everything your Mac plays.
  5. Only your voice gets through. About 43 dB less music.
Music from your speakers Your voice What your audience hears

Listen

Flip the switch. Hear the music go.

Press play, then turn Hush on and off while it plays.

What your audience hears
Hush Off: they hear your music too (no filtering) On: they only hear you (filtering enabled)

Simulation based on measurements of the real app.Music: “Be Chillin” by Alexander Nakarada

How it works

Quiet work, right in your menu bar.

Lives in your menu bar.

Two meters show what your microphone hears and what apps receive. Play a sound and watch the first one move while the second stays quiet.

As soon as you start speaking, you'll see your voice being sent through the apps.

The Hush menu with its two level meters

FaceTime's voice processing.

The same Apple processing that keeps FaceTime calls clean removes all of your Mac's sound from the mic.

Works with every app.

Hush adds a virtual microphone called “Hush Microphone”. Pick it in any app that lets you choose an input.

  • Discord
  • Zoom
  • Google Meet
  • OBS
  • WhatsApp
  • Telegram

Only on when you talk to someone.

In automatic mode, Hush runs only while an app listens to Hush Microphone, so your speakers sound normal while enhancing your privacy.

Your voice stays even.

Hush adjusts your level only while you speak, so soft and loud voices come out the same and background noise never gets boosted.

−43dB of speaker music removed from your mic
~80ms of total delay, unnoticeable in conversation
0 recordings. Audio is processed on-device in realtime.

Full measurement details available on GitHub.

Setup

Ready in about a minute.

Drag Hush into Applications and open it. Follow the steps and you're ready to go!

  1. 1

    Open Hush

    Access Hush's settings at any time on the top bar.

  2. 2

    Allow the microphone

    Nothing is recorded or sent anywhere. It is all processed on-device.

  3. 3

    Add Hush Microphone

    macOS asks for your password once to install the virtual device.

  4. 4

    Hear the difference

    A 10-second before/after test with your own voice.

  5. 5

    Pick it in your app

    Choose Hush Microphone as the input in Discord, Zoom, Meet or OBS.

Questions.

macOS won't open Hush.

Hush isn't notarized by Apple yet, so macOS warns you on first launch. To open it:

  • macOS 15 or later: try to open Hush once, then go to System Settings › Privacy & Security and click Open Anyway.
  • macOS 14: Control-click Hush in Applications, choose Open, then Open again.
  • From Terminal:
xattr -dr com.apple.quarantine /Applications/Hush.app
Does Hush record me?

No. Audio is processed live, in memory. The only recording is the before/after test in the welcome screens, kept in a local temporary file.

Is there a delay?

About 80 ms in total: Apple's processing adds about 65 ms, Hush about 15 ms. People on the other end don't notice it in conversation.

Why does my music get a bit quieter?

macOS lowers other audio whenever voice processing runs. Hush asks for the smallest reduction Apple allows, about 8 dB instead of the default 30 dB. In automatic mode this only happens during calls.

Headphones, AirPods?

They work. Hush follows output changes on its own.

How do I uninstall it?

In Hush, open Settings and click Uninstall Virtual Microphone, then move Hush to the Trash.

Talk freely. Keep the music on.