Audio Visualizer
The audio visualizer displays the audio waveform (and/or spectrogram) of the loaded video, enabling precise visual timing of subtitles.
Display Modes
- Waveform — Shows audio amplitude over time
- Spectrogram — Shows frequency distribution over time
Mouse Controls
Navigation
| Mouse Action | Effect |
|---|---|
| Scroll wheel | Scroll waveform left/right |
| Ctrl+Scroll wheel | Horizontal zoom in/out |
| Shift+Scroll wheel | Vertical zoom in/out |
| Middle-click drag | Pan the waveform |
Subtitle Timing
| Mouse Action | Effect |
|---|---|
| **Click + Ctrl (cmd on mac) + Shift ** | Set start and offset the rest |
| **Click + Shift ** | Set start of current |
| **Click + Ctrl (cmd on mac) ** | Set end of current |
| Click on empty area | Set video position |
| Click on subtitle | Select the subtitle |
| Double-click on subtitle | Set video position and select subtitle |
| Drag subtitle left/right edge | Adjust start/end time |
| Drag subtitle body | Move entire subtitle |
| Right-click | Context menu |
Creating New Subtitles
| Mouse Action | Effect |
|---|---|
| Click+Drag in empty area | Create a new subtitle with the selected time range |
Keyboard Shortcuts (Waveform)
| Shortcut | Action |
|---|---|
| Set start | Set the start time of the selected subtitle |
| Set end | Set the end time of the selected subtitle |
| Set end and go to next | Set end time and move to next subtitle |
| Set start and offset the rest | Set start and shift all following subtitles |
| Set end and offset the rest | Set end and shift all following subtitles |
| Center on video position | Center the waveform on the current video position |
| Insert at position (focus text) | Insert a new subtitle at video position and focus the text editor |
| Insert at position (no focus) | Insert a new subtitle at video position |
| Seek silence | Find the next silent section |
Note: Actual key bindings depend on your shortcut configuration. See Options → Shortcuts to view or change them.
Toolbar
The waveform toolbar (when visible) provides buttons for:
- Zoom in/out (horizontal and vertical)
- Toggle waveform/spectrogram mode
- Toggle grid lines
Shot Changes
Shot changes (scene cuts) are displayed as vertical lines on the waveform. These help align subtitle timing with scene transitions.
- Toggle shot change at video position — Add or remove a shot change marker
- Go to previous/next shot change — Navigate between shot changes
- Snap to nearest shot change — Align subtitle edges to nearby shot changes
- Extend to next shot change — Extend subtitle to the next scene cut
Context Menu
Right-click on the waveform for options including:
- Add subtitle at position
- Split subtitle
- Merge subtitles
- Delete subtitle
- Go to subtitle
- Zoom controls
