What is the function of the Rate Stretch Tool in Premiere Pro?

The Rate Stretch Tool in Premiere Pro is designed specifically to change the speed of a clip by stretching or compressing its duration. When you use this tool, dragging the edge of a clip will either speed it up or slow it down, altering the playback speed while simultaneously adjusting the clip's length in the timeline. This allows for precise control over pacing without needing to adjust the speed properties manually in the clip settings.

For example, if you stretch the clip longer, its playback will slow down, while compressing it will speed up the playback. This functionality is particularly useful when you need to match the timing of audio and video or create dramatic effects with the speed of footage.

Other options refer to different functionalities that do not correlate with the specific purpose of the Rate Stretch Tool. Some tools allow for visual adjustments like audio levels, while others may help with effects or playback enhancements, but none serve the unique stretching and compressing function that this tool provides.