Hervé Tailliez ← All case studies

9:16 · live action · fitness · 2023

Energy is made in the edit, not in the footage

Gym footage starts looking like every other gym video very quickly. What makes the difference is rhythm, and that only happens in post.

01 · Brief

What had to be solved

Live-action gym footage had to become a vertical short that carries energy: in the feed, in portrait, and in most cases with the sound off.

02 · Approach

How I approached it

The beat sets the cut points, not the footage. I analyse the music first, lay the cut markers, and only then look for the movement that fits the accent. Selection goes by direction of movement, not by the prettiest frame, that's the only way you get a flow that holds.

03 · Execution

What actually happened

  • Music analysis first: cut points land on the beat, not beside it
  • Takes selected by direction of movement and continuity
  • On-screen text carries the message for silent playback
  • Grade for a consistent studio look across changing light
  • Pacing control: dense opening, clean close

04 · Why it matters

What counts about it

Not an AI project but craft: screen the footage, build the rhythm, guide the eye. That stays the foundation, even when the images come out of a model.

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