Mac system audio sampler

Count Sampula

Record audio playing on your Mac, trim it into loops, detect BPM and key, and keep every sample organized in one dark native library.

See Features
Driverless
ScreenCaptureKit audio capture
320 kbps
Bitrate
BPM + Key
Built-in analysis
Count Sampula Mac app showing a sample library, waveform editor, BPM, and key detection.
Live waveform editing, library metadata, source tracking, and one-click sample analysis.
Record system audio Trim loops visually Detect BPM and key Import source URLs Organize a native library

Built for fast capture

Sample whatever your Mac is playing, without the driver detour.

Count Sampula uses Apple's ScreenCaptureKit system-audio capture to record sound from browsers, music apps, videos, streams, games, and other apps. It excludes its own output to avoid feedback loops, then saves each take with waveform, timing, and source context ready to edit.

Workflow

From passing sound to usable sample.

01

Capture

Start from the menu bar or a global hotkey and record the system audio source already playing on your Mac.

02

Shape

Use the waveform editor to drag trim handles, loop a selection, zoom, pan, and save a clean clipped file.

03

Catalog

Analyze BPM and key, keep source metadata, sort recordings, rename clips, and reveal files in Finder.

Feature stack

The useful details, grouped for scanning.

Recording

  • System audio capture from virtually any Mac source.
  • 48 kHz stereo recording with feedback protection.
  • Live waveform, elapsed time, save target, and status.

Editing

  • Waveform editor with trim handles and selection playback.
  • Loop, zoom, reset zoom, drag, pan, and auto-scroll.
  • Space bar playback and Save Trim for clipped files.

Analysis

  • Automatic BPM analysis and musical key detection.
  • Manual re-analysis when a take needs another pass.
  • Magic loop suggestions using energy, onsets, and timing.

Library

  • Sort by name, date, BPM, or key.
  • Multi-select, batch delete, rename, and Finder reveal.
  • Deleted recordings move to Trash.

Import + Export

  • Import direct audio or video URLs and convert to MP3.
  • AAC/M4A, MP3, WAV PCM, and AIFF PCM output.
  • 128, 192, 256, or 320 kbps bitrate options.

Native Mac Flow

  • Global hotkeys for recording and opening the library.
  • Toolbar actions for record, import, folder, share, and refresh.
  • Signed, notarized tester zip workflow.

Tester build

Download the current Count Sampula test zip.

The tester build includes the native app bundle and helper tools needed for the current macOS recording workflow. After opening the app, macOS may ask for Screen & System Audio Recording permission.

Current test file csamp.zip Zip download from countsampula.com

Ready when the idea hits

Catch the sample before it disappears.

Open Count Sampula, record the sound, trim the loop, and send it back into your music workflow.

Download Tester Zip