Waveform Alignment
video-wave-align
The video-wave-align parameter controls where the waveform bounding box is positioned on the canvas. Pass comma-separated vertical and horizontal values to set both axes at once. The default is bottom,center.
Vertical values: top, middle, bottom
Horizontal values: left, center, right
Use video-wave-pad to add spacing between the waveform box and the canvas edge. For pixel-precise control, use video-wave-x and video-wave-y instead, which override video-wave-align and video-wave-pad.