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"No, NCH WavePad does not support coloring waveform spans.
Selecting and Marking Audio
You can click and drag to select regions on the waveform for editing, as covered in tutorials—right-clicking a selection offers options like "Select All," "Select None," "Select to Start," or "Select to End," but no color picker.
For listening through long files and marking edit points, use bookmarks (called markers in some contexts): Play the file (F5 scrubs for precise audition), then add bookmarks via the Bookmarks menu or toolbar (Ctrl+B), naming and positioning them as needed.
Zoom (scroll wheel or controls) helps pinpoint areas accurately before inserting.
Closest Alternatives
- Show Edit Markers: Enable under View > Show Edit Markers to display vertical lines on edited sections (not customizable colors).
- Color Options: Limited to preset modes like "Color by Classification" (Music/Voice/Percussion/Other), "Unique Channel Colors" for stereo, or default green/black schemes—no user-defined span coloring.
- Sample Edit Mode: Lets you tweak individual samples with the pen tool (View menu), but again, no span coloring.
For your workflow, combine bookmarks with selections: Play fully, bookmark changes, then select/zoom to each for edits. This matches tutorial methods without custom colors."