Audio Playback

Murmur keeps a copy of the audio for recordings, dictations, voice notes, and meetings. You can play back any of these directly from the History detail view without leaving the app.

Where to find it

Open History, tap any item that has an audio recording, and the playback controls appear at the bottom of the detail view. Items that have audio show a waveform icon in the list.

Playback controls

• Play / Pause — Tap the play button to start playback. Tap again to pause. Playback resumes from the same position.
• Seek bar — Drag the seek bar to jump to any point in the recording. The current position and total duration are displayed on either side.
• Current time / total duration — Shows elapsed time on the left and total length on the right. Both update in real time during playback.

Playback speed

Tap the speed indicator (shown as 1x by default) to cycle through available speeds:

• 0.5x — Half speed. Useful for closely reviewing accented speech or complex content.
• 0.75x — Slightly slowed. Good for catching words you missed.
• 1x — Normal speed.
• 1.25x — Slightly faster. Works well for reviewing familiar material.
• 1.5x — Noticeably faster. Efficient for meetings or longer recordings.
• 2x — Double speed. Best for quick skimming when you know roughly where something was said.

The selected speed is preserved per session. It resets to 1x when you close and reopen a recording.

Audio format and quality

All recordings are stored as M4A files (AAC codec). M4A strikes a good balance between file size and quality, and is natively supported across macOS, iOS, and most media players.

(New in 1.6) Dictation and voice-note recordings are now captured at high quality — up to 48 kHz — so they sound clear on playback, instead of the older 16 kHz "telephone-quality" audio. You choose the sample rate and bit rate per feature in Recording Quality. The detail view shows a Recording Quality row (for example "48 kHz · 128 kbps"), read from the actual file, so you can tell exactly how each recording was captured. (Meeting audio is currently saved at 16 kHz — see Recording Quality.)

If you want to keep a copy of the audio file itself, export it from the detail view using the share button and choosing Save Audio.

Meetings and diarization

For meeting recordings, playback works the same way. If speaker diarization was run, the transcript panel scrolls to highlight the current speaker's segment as audio plays, making it easy to follow along.