Release EchoSub 1.0.1 · mPhpMaster/echo-sub

EchoSub shows live, translated captions for anything your PC plays — videos, streams, calls, games. It listens to your speakers, recognizes speech in almost 100 languages, translates it on your own GPU, and shows it in a customizable always-on-top caption box, with a line and a color for every speaker.

What's new in 1.0.1

The author's photo in the About window.
System requirements (minimum and recommended) plus download size, graphics memory and speed for every model — see below and the README.
Screenshots in the README and user guide.

Download

EchoSub-Setup-1.0.1.exe (971 MB) — Windows 10/11, 64-bit

SHA-256: BCA6628FF3D7F57EC1EAF11DAD84830EEAB9B96D3F01013C612CD02A2575D3D9

Close EchoSub if it is running, then run the installer (no admin rights needed; you can also install for all users). Installing over 1.0.0 keeps your settings and models.
Start EchoSub. The first start downloads the AI models (~2.3 GB) in a progress window — you can cancel and it resumes later.
Play anything with speech. Right-click the caption box or the tray icon for the menu.

Windows SmartScreen: the installer isn't code-signed yet, so Windows may show "Windows protected your PC". Click More info → Run anyway. You can verify the file with the SHA-256 above: Get-FileHash EchoSub-Setup-1.0.1.exe.

System requirements

	Minimum	Recommended
Operating system	Windows 10, 64-bit	Windows 11, 64-bit
Processor	64-bit, 4 cores	6+ cores (e.g. Intel Core i5-9400F / AMD Ryzen 5 3600)
Memory (RAM)	8 GB	16 GB
Graphics	None required — CPU with the Small or Base speech model (captions lag several seconds)	NVIDIA GeForce GTX 1060 6 GB or better
Graphics memory	4 GB (default models on an NVIDIA GPU)	6 GB or more
NVIDIA driver	527.41 or newer	Latest
Free disk space	6 GB	10 GB on an SSD
Internet	Once, to download the models (~2.3 GB)	Also for the optional Google Translate engine

Highlights

Any app, any language — WASAPI loopback capture, Whisper large-v3-turbo recognition with automatic language detection (~100 languages).
On-device translation — NLLB-200 (600M / 1.3B), or Google Translate. The original text appears instantly and the translation follows a moment later.
Speakers — each voice gets its own line and color.
Arabic — Moroccan Arabic (Darija) support and optional diacritics (تشكيل).
Caption box your way — fonts, colors and spacing, language labels with flags, 9 screen positions or drag anywhere, autosize, corner radius, padding, smooth slide / fade animations.
Handy — global hotkeys (Ctrl+Alt+H / P / L), caption history and transcripts, click-through lock, auto-hide when nobody talks, cancelable model downloads, self-recovery when an audio device disappears.