Animated waveform videos combine audio with a real-time visual representation of the sound. Our generator creates: static image background + animated waveform overlay + your audio track = MP4/WebM video. Configuration options: framerate (30fps recommended), waveform style (bars/line/dot), colors and gradient, background (color/image/transparent), duration (up to 60 minutes). Typical use: convert long podcast to short video clips, create audio visualizer for music releases, add visual interest to interview recordings.