backchannel
Windows x64
For Windows 10 or later on 64-bit Intel or AMD processors.
- Download
Backchannel-windows-x64.zip. - Unzip it and run
Backchannel.exe. - If SmartScreen appears, choose More info, then Run anyway.
Release v0.1.1
Clearer calls and stronger desktop reliability
Backchannel v0.1.1 keeps active-call feedback alive across navigation, improves speaker stability and chat readability, sharpens interface contrast, and removes the blank console window from Windows launches.
Download Backchannel v0.1.1
These are unsigned open-source builds attached to the GitHub release. The first run includes the normal Windows SmartScreen or macOS Gatekeeper prompts.
macOS Apple Silicon
For Apple Silicon Macs. Intel macOS builds are not included in this release.
- Download
Backchannel-macos-arm64.zip. - Unzip it and move
Backchannel.appwherever you keep apps. - Right-click
Backchannel.appand choose Open the first time.
What changed
This patch release concentrates on the parts of Backchannel that stay visible throughout a real meeting.
Call continuity
The active timer, audio meters, WebSocket stream, and capture state now remain attached to the live session while you inspect another session and return.
Readable analysis
Chat replies render Markdown, retain a short follow-up history, and can be reset. Enhanced insight labels appear only after the explicit enhancement pass.
Stable local operation
Speaker enrollment is bounded and less sensitive to short fragments. Windows PostgreSQL helpers stay hidden, and desktop URLs use localhost.
First-run notes
| Need | What to do |
|---|---|
| Provider key | Add a Gemini key in Admin -> API Keys after launch. Add OpenAI only if you route agents to OpenAI. |
| Desktop launch | Backchannel opens a browser at a local localhost address and remains available from the system tray or menu bar. |
| Audio imports | WAV, FLAC, and OGG work out of the box. MP3 and M4A imports need ffmpeg on your PATH. |
| Diarization | The desktop app uses the improved lightweight diarizer. Use Docker Compose for optional Sortformer diarization. |
| Docker | Check out the v0.1.1 source tag and rebuild Compose to run the same release through containers. |
Start with the desktop app or self-host the stack
Both paths run Backchannel on your machine. Choose the desktop bundle for the fastest start, or Compose for maximum control.