Timeline Audio Visualizer

Timeline Audio Visualizer draws audio waveform overlays directly inside Blender animation editors. It helps animators time actions, lip sync, beats, impacts, cuts, and scene accents without constantly switching to the Video Sequencer or an external audio editor.

The overlay is available in:

• Dope Sheet
• Graph Editor
• NLA Editor

Features

• Draws audio waveforms directly over animation timeline editors.
• Supports audio from Video Sequencer sound strips.
• Supports audio from Speaker objects.
• Adds a compact TAV button to the Dope Sheet / Timeline header for quick access.
• Works from the sidebar Sound tab or from the header popover.
• Multiple waveform display modes:
  • Peaks / Bars
  • Solid Mirror
  • Outline
  • RMS Envelope
  • Peak + RMS
  • Positive Fill
• Adjustable waveform height.
• Vertical Anchor option:
  • Center
  • Bottom
  • Top
• Custom waveform color in the extension preferences.
• Adjustable waveform detail level.
• Sequencer source filters:
  • Audible Strips
  • Selected Strips
  • Sound In List
• Optional scene range clamp.
• Cached waveform data for faster redraws.

How to use

1. Open an animation editor: Dope Sheet, Graph Editor, or NLA Editor.
2. Press N to open the sidebar.
3. Open the Sound tab.
4. Use Timeline Audio Visualizer > On / Refresh.

You can also use the TAV button in the Dope Sheet / Timeline header to open the controls as a quick popover.

Audio decoding

The extension tries to decode audio in this order:

1. Blender AUD
2. Basic WAV fallback

Most common WAV files and many MP3 files should work through Blender's built-in audio support.

Permissions

This extension reads local audio files used by the current Blender project in order to generate waveform data.

It does not upload audio, project files, or user data.

Limitations

This tool is intended for short animation and audio timing ranges. Very long full-track editing sessions may be slower or use more memory depending on waveform detail settings.