The preview is built from peak samples across the full recording, so short transients remain visible even when a long track is compressed into a small image. Choose bars for a social-player look, a filled silhouette for bold artwork, or an outline for a lighter overlay.
Transparent PNG output works well over video, podcast cover art, and presentation backgrounds. Normalization only scales the drawing against its loudest captured peak; it does not edit, compress, or change the source audio.