🎧 AE Beat Marker — Automatic Beat Markers for After Effects

A fast, lightweight, and free solution for automatically placing markers on audio peaks (beats) directly in After Effects.

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⚠️ Important

This script is written in Russian.
If your After Effects interface uses a different language (e.g., English), please translate the field values manually in the script UI so they match the names in your composition.

If markers do not appear:

• Check that all layer and property names in the script match your composition
• Ensure the correct audio channel and amplitude parameter are used
• Verify the amplitude threshold is not too high

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🚀 Features

• ⚡ Automatically adds markers to a composition based on audio peaks
• 🔧 Adjustable sensitivity threshold and minimum interval between beats
• 🧠 Uses values from Audio Amplitude → Both Channels
• 🪄 No external libraries, licenses, or dependencies required
• ✅ Compatible with AE 2024+ (works even on cracked versions)

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⚙️ Parameters Overview

When you run the script, you’ll see several input fields. Here’s what each one does:

1. Layer name – Name of the Audio Amplitude layer.
   Usually "Audio Amplitude" by default. If you're using a non-Russian version of AE, replace this with the actual name in your composition.

2. Effect name – The audio channel to analyze.
   Common values: "Both Channels", "Left Channel", or "Right Channel". Adjust if your AE language differs.

3. Property name – The property used for amplitude detection.
   Typically "Slider" or localized equivalent.

4. Amplitude threshold – Minimum peak level required to place a marker.
   Useful values might be 25, 45, 60 — test your audio to determine a good threshold.

5. Minimum interval (frames) – Minimum number of frames between beats.
   Prevents overcrowding of markers.

6. Marker name – Text that will appear on each marker.

7. Enable numbering – If enabled, markers will be numbered sequentially.

8. Marker color – (Optional) Choose a custom marker color.

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📦 Installation

1. Download the beatMarker.jsx file
2. In After Effects, go to File > Scripts > Run Script File…
3. Select the composition that includes an Audio Amplitude layer
4. Run the script — markers will appear automatically!

💡 Pro tip: For easier access, place the script in the Scripts or ScriptUI Panels folder.

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📝 Notes

• The script is standalone — no setup or dependencies required
• Works best with clearly defined audio peaks
• Perfect for editors, motion designers, and VFX artists needing fast beat syncing

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📃 License

This project is released under the MIT License.