Add Your Own Sounds

Import Your Own Sounds on Mac

Add your own audio files to Blankie on macOS. Import MP3, M4A, WAV, FLAC or OGG and mix them right in with the built-in ambient sounds.

2 min read Updated October 2026 Mac

Blankie comes with a curated library of ambient sounds, but you're not stuck with just those. Blankie gets even better when you add more. That voice memo of rain you recorded on a camping trip, that song you can't stop listening to, maybe even a class lecture. Whatever audio is already sitting on your Mac, you can add to Blankie.

Import a sound

  1. Choose File → Import, or press ⌘I, or click the button at the top of the sidebar and choose Import.
  2. Pick an audio file from your Mac using the file browser.
  3. Blankie will open an import sheet where you can give your sound a name, pick an icon and have a listen before you commit.
  4. Click Import Sound. Your new sound shows up next to the built-in ones, ready to drop into a mix.

You can also choose Blankie → Settings, or press ⌘,, then click Manage Sounds and hit Import from there.

Blankie's Import Sound sheet on Mac for bedroom-fan.m4a, named Bedroom Fan with a fan icon, with Fade In and Out, Loop Sound, Randomize Start and Sound Check turned on.

Supported formats and limits

  • Formats: M4A (AAC or Apple Lossless), MP3, WAV, FLAC, AIFF, OGG (Vorbis or Opus), CAF, AAC and AU. Just about anything that plays on your Mac imports. The only common format Blankie can't read is Windows Media Audio (WMA). Just convert it somewhere else first and bring it into Blankie.
  • Size: no limit to worry about. Files over 150 MB are converted to AAC automatically as they import.

Import as many sounds as you like. They're yours, and they stay on your device.

Blankie on Mac with an imported sound, Camping Rain, playing among the built-in sounds like Rain, Waves, Stream and Fireplace.

Automatic volume matching

Recordings from different devices and apps can vary wildly in volume. So Blankie measures the loudness of each sound you import and matches it to the rest of your library. Blankie calls this feature Sound Check, and it means a new sound sits at a comparable level in a mix instead of blasting or vanishing, with no slider-riding from you. To turn it off and set a sound's level by hand, see our guide on custom sound settings.

Keep reading

Blankie is free, forever.

No ads, no paywalls and no privacy tradeoffs. Mix adjustable ambient sounds into your own soundscapes for sleep, rest and focus on iPhone, iPad, CarPlay and Mac.

Download on the App Store