After Effects is overkill for short form video content. BeatVisualiser is the alternative. Drag & drop your audio, pick a visualiser, export. Visualisers are perfectly synced to your audio. Done in under a minute, in your browser. Four styles: Spectrum, Scrolling Waveform, Vinyl, and Split mode. 1080p 60fps, 9:16 for Reels, TikTok, Shorts. Free to try. Pro $9.99/mo or $8.25/mo (annually). Lifetime $149.