Beta · v0.85.6

Finish captions
with context.

Sthang Studio helps Khmer creators turn video and audio into timed captions, review and style them against the real footage, then export UTF-8 SRT or a locally rendered captioned MP4.

Download for Windows Download for macOS View source on GitHub

In 0.85.6

More control at the moments
that need precision.

The current Beta keeps Fine Timing, word-level review, richer local caption styling, and a guided handoff workflow. Windows 0.85.6 is live through Studio's signed in-app updater. The Apple Silicon build is a one-time manual GitHub bootstrap with a Finder launcher; later Mac in-app updates will come only through separately promoted releases.

  1. 01 Fine Timing

    Adjust caption edges, whole cues, and individual words with bounded nudges, waveform context, undo, and overlap protection.

  2. 02 Looks + motion

    Use six Studio Looks plus Glow, Fade, Rise, Soft Pop, replay, and optional spoken-word highlighting in native preview and MP4 export.

  3. 03 Editable handoff

    Take captions onward as SRT, WebVTT, TTML, word-level files, styled ASS, Studio caption data, or a guided ZIP kit.

  4. 04 Khmer-first AI

    Gemini 3.8 Flash now leads the wording path with 3.7 Flash fallback, while wrong-script Khmer results are rejected before they reach the project.

Windows · signed in-app update + GitHub recovery ZIP macOS · Apple Silicon 0.85.6 manual bootstrap + Finder launcher

Edit, style, and finish
Khmer captions.

Review captions against the real footage, tune their appearance with native Khmer-safe preview, use compatible local fonts, and export either SRT or a locally rendered captioned MP4.

Edit and fine-time
Time, edit, approve, and review captions against the footage, then focus one caption or word when its timing needs precision.
Looks, motion, and fonts
Style captions with native Khmer-safe Looks and motion, discover compatible Khmer fonts, or add your own local TTF or OTF font.
Export or hand off
Render captioned MP4 locally, export UTF-8 SRT, or choose advanced caption formats when you want to continue editing elsewhere.
Google Gemini

What stays local.
What goes to Gemini.

Generate and Regenerate send normalized WAV audio, relevant context, and requested wording directly to Google Gemini with your API key. Google’s terms and data-handling policies apply.

Read the boundary guide
  1. Local deviceTiming and edits
  2. ActionGenerate or Regenerate
  3. Sent dataWAV, context, wording
  4. ProcessorGoogle Gemini
Remains local
Caption timing, editing, project storage, preview and render work, creator-added fonts, and exports stay local. History and exports stay local.
Your Gemini key
Your key uses Windows user-protected in-app storage or the macOS Keychain on Apple Silicon installs and source builds. Advanced setups can use GEMINI_API_KEY from the environment or a .env file.
Khmer wording path
Studio 0.85.6 uses Gemini 3.8 Flash first and 3.7 Flash as the context-aware fallback. Unexpected English-only or Thai/Lao output is rejected for Khmer-first work before new captions are saved.
Uploads and retention
Studio sets store: false. Audio is still uploaded through the Gemini File API. Studio does not delete these uploads; Google controls their retention for up to 48 hours. Khmer Caption Contributor and product analytics are separate, default-off opt-ins. Studio privacy details.

Download the
public Beta.

Get the reviewed v0.85.6 package for Windows or Apple Silicon macOS from GitHub Releases. Existing updater-capable Windows installs can also move to 0.85.6 from inside Studio. The Mac package is the one-time manual bootstrap for this release.

Current statusPublic source · Beta · v0.85.6

WindowsWindows 10 or 11 x64 · Curated GitHub recovery ZIP · Signed public in-app update available

Windows updateUse Check for updates, then explicitly choose Download & verify and Install & restart. Studio does not silently download or install updates.

macOSApple Silicon (M1 or newer) · macOS 12.3+ · Native arm64

Mac 0.85.6Download the Apple Silicon package from GitHub and run the one-time command-based bootstrap. It installs a Finder launcher for normal use. Mac in-app updates are not live for 0.85.6; later Mac in-app update releases will be separately promoted. Gatekeeper may require Control-click, Open on first launch. Intel Macs are not supported.

Download for Windows Download for macOS 0.85.6 release notes Studio documentation Return to Sthang