How We Built Transcript-Powered Video Editing in Go

You record a five-minute product walkthrough. You say "um" eleven times. The first thirty seconds are you fumbling with screen share. The title reads "Recording 2/20/2026 3:45:12 PM." Fixing any of this used to mean dragging tiny handles on a timeline, scrubbing back and forth to find the right millisecond. If you wanted to remove filler words, you'd have to find each one manually and trim them out one at a time. We already had word-level transcripts from whisper.cpp. The data was sitting right there — timestamps, text, segment boundaries. We just weren't using it for editing. SendRec v1.45.0 adds three features that change that: trim by transcript, filler word removal, and AI-generated title suggestions. All three build on the same transcript data. Trim by transcript The existing trim tool works with draggable handles on a time bar. Fine for rough cuts, but hard to use when you need to cut at the exact moment a sentence starts. The trim modal now shows the video's transcript segments