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Klangbruecke 1.0.0

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@MYSTRAVIL MYSTRAVIL released this 15 Aug 21:21
v1.0.0
1b7e296

Windows tray app that bridges your phone to your PC over Bluetooth — music (A2DP sink) and cellular calls (HFP hands-free) on the built-in radio. No Phone Link, no dongle. This first full release also adds an optional phone media remote.

Highlights

  • Music — your phone's audio plays through the PC (A2DP sink), routed to the output you choose.
  • Calls — cellular calls use the PC as a hands-free device (HFP), with audio both directions.
  • Phone media remote (new, optional) — a small Android companion mirrors your phone's now-playing into the Windows media overlay / ModernFlyouts: title, artist, album art, a live seek bar, and transport (play / pause / next / previous / seek) driven from the PC over Bluetooth RFCOMM. Fully event-driven and power-light — the phone streams nothing at idle, and the PC advances the seek bar itself.
  • Tray-first and headless — runs in the tray, starts with Windows, and reconnects on its own after sleep, reboot, or range loss.

Install — PC

  1. Download Klangbruecke.cer and Klangbruecke-1.0.0.msix.
  2. Trust the signing certificate once — right-click Klangbruecke.cer → Install Certificate → Local Machine → place in Trusted People.
    (Or, in an elevated PowerShell: Import-Certificate -FilePath Klangbruecke.cer -CertStoreLocation Cert:\LocalMachine\TrustedPeople.)
  3. Install the app — double-click Klangbruecke-1.0.0.msix, or run Add-AppxPackage -Path Klangbruecke-1.0.0.msix.
  4. Pair your phone in Windows Bluetooth settings. Klangbruecke connects and routes automatically.

Requires Windows 10 build 19041+ (19045 recommended). The MSIX is signed with a development certificate — this is a sideloaded app, not a Store submission, which is why step 2 is needed.

Install — phone media remote (optional)

Android-only and sideloaded — not on the Play Store.

  1. Download and install Klangbruecke-Remote-1.0.apk (allow install from unknown sources).
  2. Open Klangbruecke Remote and grant Notification access (to read the active media session) and Bluetooth. The service then runs quietly in the background and reconnects on its own — including after a reboot.
  3. Turn on Phone remote in the Windows app's tray menu.

The companion app versions independently from the Windows app and ships with every release, even when it hasn't changed.

Notes

  • Music and calls are verified on Windows 10 19045; see docs/FINDINGS.md for the empirical details behind the approach (why the inbox Bluetooth stack, no dongle, and how the media remote works over RFCOMM).
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