[dylanjeffers]

What

The share-to-story video's visualizer was a 900px showfreqs spectrum drawn twice (once flipped), pushed off both edges, and run through adynamicsmooth, which strips the highs. It read as a grey fuzzy band at 70% white.

It's now:

• 36 white bars mirrored top and bottom, with bass in the center and highs at the edges
• scaled to the loudest 64dB (showfreqs log scale spans 120dB, so the graph renders 120 rows and keeps the top 64), with 2-frame averaging so the bars move with the music without flickering
• a 2px floor on every bar, so quiet bands show as a dotted line instead of a gap
• centered, 0.85 white, at y=752–880, just below the TikTok sticker area (ends at y=748)

The rest of the command is unchanged: background gradient, TikTok sticker overlay, audio, and the 10s / ultrafast encode.

Testing

• Rendered the exact filter string with desktop ffmpeg on two trending tracks, for both the Instagram/Snapchat command and the TikTok command with the sticker input. Both produce 10s output.
• Checked that every showfreqs, crop, geq, hstack and vstack option used exists in FFmpeg 6.0, the version bundled by ffmpeg-kit 6.0.2 full-gpl.
• Confirmed FFmpegKit's parseArguments keeps the single-quoted geq expression inside the double-quoted -filter_complex value.
• Not yet run on a device. Worth checking encode time on an older Android phone, since geq adds some cost per frame.

🤖 Generated with Claude Code

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