millwork / murmur / support

DOC — SUPPORT

Support — Murmur

Getting started

Murmur is an audiobook player that uses Apple Health to detect when you fell asleep, then rewinds your audiobook to where you stopped paying attention.

When you first open the app, two short tutorial audiobooks — Welcome to Murmur and Tips & Tricks — are in your library. Each is about two minutes long and walks you through everything you need.

Importing audiobooks

Tap the plus button in your library to import. Murmur supports:

  • .m4b — standard audiobook format with chapter markers built in (preferred)
  • .mp3 and .m4a — single-file or folder-of-files (each file becomes a chapter)

You can import from Files, iCloud Drive, AirDrop, or anywhere iOS lets you reach.

Sleep rewind

Sleep rewind needs read-only Apple Health permission. Grant it the first time it asks, or any time later in iOS Settings → Privacy & Security → Health → Murmur.

Without Health permission, Murmur falls back to standard bookmarks at your last interaction. You don’t lose anything except the automatic rewind feature.

You can turn sleep rewind on or off in Murmur → Settings.

Sleep timer

If you want a hard stop, Murmur has a sleep timer in the player view — 15 / 30 / 60 minutes, or end of current chapter. Use it or skip it. Sleep rewind works either way.

Backing up your listening history

Murmur stores all your progress locally, on your device. If you delete the app, your history goes with it.

To protect against this, Settings → Back up listening history creates a small file you can save anywhere (Files, iCloud Drive, AirDrop). Do this whenever you’d like a checkpoint.

To restore, tap Restore listening history in Settings and pick the backup file. Re-imported audiobooks match automatically by their internal identifier — your progress slots back where it was.

Common questions

Sleep rewind isn’t doing anything. Check that Apple Health permission is granted (Settings → Privacy & Security → Health → Murmur). If you didn’t wear a watch or otherwise have sleep detection running last night, there’s nothing for Murmur to read; the next morning it will fall back to your last interaction position.

My audiobook didn’t import as chapters. Murmur reads chapter markers from .m4b files automatically. If you imported plain .mp3 files in a folder, each file becomes a chapter in the order they’re named. If chapters look wrong, check the file order and re-import.

Can I move my history to another iPhone? Yes — use Back up listening history on the old phone, AirDrop the backup file to the new phone, then Restore on the new phone.

Contact

Bugs, requests, or anything else: tom@millwork.studio. Replies within 1–2 days, usually faster.

Privacy

Murmur collects nothing. See the privacy policy for details.

© 2026 Tom Frauenfelder