Video Editing · Session 5
DoneSpeed Remapping
Changing clip speed over time with the Time Remapping tool — slow motion, speed ramps, and keyframing smooth transitions between speeds.
Source footage for this session's exercise — not a recorded lesson.
Download FootageBuild a 20-Second Highlight Reel Using Speed Effects
What you will do: Using skills from Sessions 1–5, import footage, edit it using Mark-In/Out, and build a 20-second highlight reel that uses three different speed effects. You will also add a lower-third title over your slow-motion section.
Part 1 — Recap (Sessions 1, 2 & 4)
Step 1 — New project
- Create a new project named:
YourName_Session5 - Make a bin called Footage
- Import at least 3 action video clips into the bin
Step 2 — Edit your clips
- Open each clip in the Source Monitor
- Use Mark-In (I) and Mark-Out (O) to select 5–8 seconds from each clip
- Press comma (,) to insert each clip onto V1
- Do not drag clips onto the timeline
Step 3 — Add a lower-third (Session 4)
Over your slow-motion section, add a lower-third with your name and a job title. Animate it so it slides in and fades out. Refer to your Session 4 assignment if you need a reminder.
Part 2 — Speed effects (Session 5)
Apply all three speed effects below to different clips on your timeline.
Effect 1 — Slow motion using Time Remapping
- Right-click the clip > Show Clip Keyframes > Time Remapping > Speed
- Hold Ctrl / Cmd and click the yellow speed line to add two keyframes
- Drag the speed line down between the keyframes (aim for 30–40%)
- Click each keyframe and drag the handles outward to create a smooth ramp
- Press play to preview — the speed should gradually slow down, not jump
Effect 2 — Fast forward using Speed/Duration
- Right-click a different clip > Speed/Duration
- Set speed to 200%
- Tick: Ripple Edit, Shifting Trailing Clips
- Click OK and preview
Effect 3 — Reverse playback
- Right-click a third clip > Speed/Duration
- Tick: Reverse Speed
- Click OK and preview
- Optional: combine with 50% slow motion for extra effect
Step 4 — Check duration
Total timeline duration must be between 18 and 22 seconds. Trim or adjust clips if needed.
Step 5 — Export
- File > Export > Media
- Format: H.264
- Preset: Match Source — High Bitrate
- File name:
YourName_Session5_Export - Click Export
File names
Somchai_Session5_SpeedReel
Keyboard shortcuts
- Ctrl+R
- Clip Speed/Duration dialog
- Ctrl + click speed line
- Add a Time Remapping keyframe
- ← / →
- Step frame-by-frame while placing speed keyframes
- Ctrl+Z
- Undo a speed change that overshoots
Mac users: swap Ctrl for Cmd.