Drop a video, get word-timed subtitles in minutes with MurmurSubtitles — transcribed, translated, styled, and exported entirely on your Mac. Nothing ever leaves your device. ■ WORD-TIMED TRANSCRIPTION • Two-pass on-device AI — speech recognition plus a forced aligner, so every word knows exactly when it is spoken • Smart segmentation — audio splits at silence, never mid-word • Natural subtitles — cues break at sentence boundaries, sized for comfortable reading • Your choice of accuracy — Fast, Balanced, or Best; the app picks the right model ■ A REAL SUBTITLE EDITOR • Professional quality checks — reading speed (CPS, characters per second), line length (CPL, characters per line), duration, gaps, and overlaps • Plain-language findings — every check explains why it matters and offers a one-click Fix • Waveform retiming — drag cue edges against the real audio • Shot-change aware — cue edges snap away from camera cuts • Word-accurate split and merge, shift-all sync fix, deep undo and redo ■ BILINGUAL BY DESIGN • Queue target languages and get perfectly aligned translation tracks • Translations stay in sync — one click re-derives them after edits • All translation runs on-device ■ STYLED CAPTIONS • Presets plus full control — font, size, per-line colors, background, position • Karaoke live-word highlighting — the spoken word lights up • Fade scrim background — the big-caption, YouTube-lyric look • Learner preset — large serif type built for language study ■ EVERY EXPORT THAT MATTERS • SRT and VTT sidecar files • Styled .ass export with your fonts and colors • Burn-in — bake captions into a new 1080p or 4K video for social ■ PRIVATE BY DESIGN • 100% on-device — your footage, audio, and words never leave your Mac • AI models download once on first launch; after that, no network needed • No accounts, no tracking of your media, no cloud round-trips Perfect for content creators, language learners, educators, and video teams who refuse to upload their footage to someone else's server. Give every video subtitles that meet professional standards — without your video ever leaving your desk. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Education · iPhone, iPad · Free
