v1.2.0

2026-02-13 LATEST

Speech-to-Text (STT)

  • NewTriple-engine speech recognition: Deepgram online streaming, Whisper offline, Sherpa-onnx offline streaming / non-streaming
  • Deepgram Nova-3 real-time streaming with ~200ms latency, Keywords Boosting support
  • Whisper large-v3-turbo offline recognition with Metal GPU acceleration, 99 languages
  • Sherpa-onnx streaming mode (Zipformer Chinese-English) and non-streaming mode (SenseVoice 5 languages)
  • Audio input device selector, recognition language selection, model management panel
  • OpenCC auto Traditional/Simplified Chinese conversion for offline engines

Usability Improvements

  • ImprovedEnter / Esc work globally during STT without clicking the input box first
  • Improved← → arrow keys to switch document tabs

v1.1.1

2025-12-15

NDI Output Optimization

  • ImprovedCustom native C++ NDI module, performance boosted to 60fps
  • Event-driven + heartbeat hybrid mode, idle CPU usage < 1%

Bug Fixes

  • FixedTraditional/Simplified Chinese conversion causing incorrect characters

v1.1.0

2025-12-15

NDI Video Output

  • NewNDI LAN broadcast output, accessible by any device on the same network
  • BGRA video stream with Alpha Channel transparency support
  • Compatible with OBS Studio, Resolume Arena, vMix and more

Subtitle Transitions

  • NewFade in/out transition effects with customizable duration (0.0 – 3.0 seconds)
  • Independent transition timing per screen

v1.0.7

2025-12-13

Internationalization

  • NewFull trilingual interface: Traditional Chinese, Simplified Chinese, English
  • Menu language switching (restart required), automatic system language detection

v1.0.5

2025-12-05

Styling System

  • ImprovedVertical and horizontal positions fully independent, consistent behavior for horizontal/vertical text
  • NewFont picker (recommended + system fonts), bold/italic toggle, letter spacing control
  • Custom font size memory

v1.0.3

2025-12-03

New Features

  • NewBackground color dropdown (Black, White, Red, Green, Blue, Custom)
  • NewAuto-hide subtitles (3s / 5s / 10s)
  • Remember last used folder path when opening/saving

Bug Fixes

  • FixedDouble checkmarks appearing after language switch

v1.0.0

2025-11

Initial Release

  • Real-time subtitle input and display, single/multi-line modes (1–5 lines)
  • Multi-screen independent output with per-screen styling and resolution
  • Automatic Traditional/Simplified Chinese conversion
  • Virtual output window with live preview
  • Document management: open .txt / .docx, line-by-line sending, multi-tab, edit mode
  • .sub project format, saves all settings and state
  • RTL text direction support (Arabic, Hebrew)
  • Vertical text dual-side display