Claude by Anthropic
# Apply Speed Curve Professional cinematic time manipulation for video assets. ## Overview The Apply Speed Curve model is a high-precision temporal editing tool designed to transform static video clips into dynamic, cinematic sequences. By leveraging advanced easing functions and custom Bezier curves, this model allows creators to manipulate the flow of time within a video, enabling smooth transitions between different playback speeds. Whether you are looking to create dramatic slow-motion reveals or high-energy speed ramps, this tool provides the granular control necessary to achieve professional-grade results without the need for complex keyframing in traditional NLE software. Unlike standard linear speed adjustments, this model utilizes mathematical easing to ensure that transitions between speed states are fluid and organic. By defining specific Bezier handles, users can dictate the acceleration and deceleration of the footage, creating a "weighted" feel that mimics high-end cinematography. This is particularly effective for marketing assets where the pacing of a video must align perfectly with rhythmic audio cues or brand-specific transitions, ensuring that the viewer's attention is captured at exactly the right moment. ## Use Cases * Creating high-impact product reveals by ramping up speed during motion sequences. * Synchronizing video playback to match the beat of a background music track for social media ads. * Smoothing out shaky handheld footage by applying subtle easing to speed variations. * Developing cinematic slow-motion sequences for luxury brand storytelling. * Optimizing long-form video content into punchy, fast-paced clips for TikTok or Instagram Reels. * Enhancing B-roll footage to feel more intentional and professionally edited. ## Parameters This model offers flexible control over temporal dynamics. Please refer to the parameter configuration table in the Pixloop interface to define your input video, select your preferred easing preset, or input custom Bezier coordinates to fine-tune the acceleration curve. ## Tips for Best Results * Start with the 'Ease In/Out' preset if you are new to speed ramping to achieve a natural, professional look. * Use the Bezier handles to create a 'S-curve' for the most organic transition between slow and fast motion. * Ensure your output duration is set slightly longer than the intended final clip to allow for smooth interpolation. * When syncing to audio, identify the peak transients in your music track and align your speed ramp peak to these markers. * Avoid extreme speed variations on low-frame-rate footage to prevent visible motion stutter or frame blending artifacts. * For high-energy ads, use a steeper Bezier curve to create a sharp, punchy transition that grabs the viewer's attention immediately. ## About The Apply Speed Curve model is powered by the renderer-worker engine, a specialized high-performance processing unit within the Pixloop ecosystem. Developed to bridge the gap between automated AI generation and manual editorial control, this model draws on industry-standard temporal interpolation techniques to provide creators with a robust, reliable, and scalable solution for time-based video effects.
Model input reference derived from preset schema.
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
| videoUrl | video | Yes | - | Input video file |
| easingPreset | select | No | "linear" | Pre-defined easing function for speed curve |
| bezierHandles | array | No | - | Custom cubic bezier curve as [x1, y1, x2, y2] (all values 0-1) |
| outputDuration | number | Yes | 10 | Target output duration in seconds |