Give sound effects a clear hierarchy

Use an illustrative sequence in which a shape appears, splits into three parts and then resolves into one diagram. The resolution is the main explanatory event; the appearance provides orientation; the small part movements are supporting detail. Rank resolution as foreground, appearance as secondary and background texture as optional ambience.

Create cue-sheet fields for time, visual event, intended meaning, priority, sound description, competing speech and removal test. “Whoosh at every transition” is not a purpose. “Soft impact marks the moment the three parts become one whole” is a reviewable decision.

For an illustrative 15-second study, use a light cue at 2 seconds when the first shape becomes visible, no cue during the 4–8 second reading interval and one restrained impact at 10 seconds when the whole resolves. Let the final 10–15 second hold remain quiet enough to inspect the completed diagram.

These times are creative starting points. Align a cue with the visible event it is meant to emphasize, not merely the nearest music beat. If an impact arrives before the objects touch, it may imply an event that has not occurred. If it arrives too late, it may feel unrelated.

Mute one cue at a time and ask what information or emphasis is lost. Remove cues whose only job is to make the sequence feel continuously busy. If two effects mark the same resolution, choose the one with the clearer purpose rather than stacking both by default.

Keep ambience subordinate when narration carries the explanation. A small click can still be distracting if it falls on a critical word. Changing its timing or removing it can solve the conflict more cleanly than reducing every layer. Listen to the whole sequence after each removal because the balance between events may change.

Watch once with sound and once muted. Essential relationships should remain visible; sound may reinforce them without becoming the sole cue. Listen without watching to identify unexplained noises, harsh transients or effects that suggest a different material or action than the visuals show.

Record the chosen cue’s role and exact alignment in the handoff, along with asset provenance. For a restrained variation, retain only the main resolution cue or remove effects entirely. Do not invent a universal loudness target for all delivery destinations; verify the actual destination’s requirements separately and evaluate the encoded file in representative listening conditions.