Assign Sound Tracks in Blender Video Sequence Editor

This guide explains how to add, assign, and manage audio tracks using the Blender Video Sequence Editor (VSE). You will learn how to import sound files, organize them across different sequencer channels, adjust essential audio properties, and configure final output settings for clear, synchronized audio playback in your video projects.

1. Open the Video Sequence Editor

  1. Open Blender and click the + icon at the top of the workspace bar.
  2. Navigate to Video Editing > Video Editing to load the dedicated VSE workspace.
  3. Alternatively, change any existing editor window to the Video Sequencer by clicking the Editor Type menu in the top-left corner of the panel.

2. Import and Place Sound Files

  1. Place your Playhead (the vertical blue frame marker) at the specific frame where you want your sound to begin.
  2. In the Sequencer menu, click Add > Sound (or press Shift + A and select Sound).
  3. Use the Blender File Browser to locate and select your audio file (supports WAV, MP3, AAC, FLAC, and OGG formats).
  4. Click Add Sound Strip to place the audio into the timeline.

3. Assign and Organize Tracks Across Channels

Blender uses a horizontal channel system where each numbered row represents a distinct track:

  • Moving to Different Channels: Click the sound strip to select it, press G (Grab), and move your mouse up or down to place it on a higher or lower channel (e.g., Channel 1 for dialogue, Channel 2 for sound effects, Channel 3 for background music). Left-click to confirm the placement.
  • Exact Channel Assignment: Press N to open the Sidebar with the strip selected. Under the Time tab, manually change the Channel number to immediately reassign the strip to that specific track row.
  • Channel Layering: Higher numbered channels play simultaneously with lower numbered channels. Audio clips do not overwrite each other when placed on different channels.

4. Adjust Track and Strip Properties

With the sound strip selected, press N to open the Sidebar panel on the right and go to the Strip tab:

  • Display Waveform: Enable the Show Waveform checkbox under the Sound section to visualize the audio frequencies directly on the strip.
  • Volume: Adjust the Volume slider to control strip loudness (default is 1.0).
  • Pan: Use the Pan slider to balance the sound between left (-1.0) and right (1.0) stereo channels.
  • Pitch: Adjust playback speed and pitch using the Pitch setting.
  • Mono/Mute: Check Mono to combine stereo channels into mono, or press H (Hide/Mute) on the strip to silence it during playback.

5. Configure Audio Output for Rendering

To ensure your assigned audio tracks export properly with your final video:

  1. Go to the Properties panel on the right and select the Output tab (printer icon).
  2. Scroll down to the Audio section under the Encoding panel (available when File Format is set to FFmpeg Video).
  3. Select an Audio Codec such as AAC, MP3, or PCM. If this is set to No Audio, the rendered video will be silent.
  4. Set your preferred sample rate, bitrate, and volume settings for the final export.