PATAH STUDIO GUIDES
Alternating-cut duration calculator
Plan the result before opening a video. This calculator uses the editor's cutting rules, including the final partial segment.
150 segments kept, 150 segments skipped.
Calculating complete cycles
For an interval of I seconds, K kept segments and B skipped segments, one complete cycle takes I × (K + B) seconds of the source video. The duration retained in that cycle is I × K seconds.
A 10-minute video is 600 seconds. With a 2-second interval and a 1:1 pattern, each cycle takes 4 seconds and retains 2 seconds. There are 150 complete cycles, giving 300 seconds or 5 minutes of output.
The final segment may be incomplete
Consider an 11-second video with a 3-second interval. Starting with Keep retains 0–3 and 6–9: a 6-second result. Starting with Skip retains 3–6 and 9–11: a 5-second result. The 9–11 passage is only 2 seconds, so it is not counted as 3.
The calculator adds the actual length of each kept segment. It does not round every segment to a full interval. Long durations are displayed as total minutes and seconds.
How do I get a 1-minute-30-second result?
With a 1:1 pattern and complete cycles, 3 minutes of source produces 1 minute 30 seconds. A 10-minute source produces about 5 minutes. To select particular passages from a longer source, trim the source first or use an editor with start/end trimming.
Patah Studio does not have an exact target-duration control that intelligently selects scenes. A 2-second interval alone will not turn every video into 90 seconds. Compare the estimate with your target before exporting.
Estimate versus exported file
This calculation is exact for the selected time ranges. Browser recordings may differ by a few frames because of playback timing, segment seeking and encoding. Check the final file if you need to meet a precise submission limit.