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VatTube

Current version: 0.3.0 Updated: 2026-04-10

Introduction

VatTube is a project for VATSIM users designed to alleviate voice instability when connecting to VATSIM voice servers under certain network conditions in mainland China. The client component of VatTube (a DLL file) intercepts the UDP traffic that would normally go directly to the voice server and forwards it through a relay route in the background, helping reduce voice dropouts, stuttering, and disconnections as much as possible.

VatTube is intended to address:

  • Voice disconnections (the client repeatedly shows Voice server error: Timeout and Connected to voice server)
  • Poor voice quality, intermittent audio, and stuttering
  • High voice latency

VatTube cannot solve:

  • Cases where Cloudflare risk control prevents the client from connecting directly to the VATSIM auth server (the client shows Authentication failed)
  • FSD connection disconnections (the client shows Network error)

According to tests, voice disconnections were completely eliminated, packet loss stayed below 1%, and latency dropped from 290ms to 210ms.

Usage

  1. Download the corresponding DLL file for your client: vPilot, xPilot. Do not mix them up.
  2. Place midimap.dll in the same directory as vpilot.exe or xpilot.exe. This is not the directory where the shortcut is located.
  3. Start vPilot or xPilot. If the DLL is placed correctly and initializes successfully, you should see a popup message saying Bridge initialized successfully. Local bridge is active.
  4. Launch your client and fly as usual. VatTube will handle voice relay forwarding in the background.

Uninstallation

Delete midimap.dll.

Notes

  • If the relay server restarts unexpectedly, the voice connection may keep dropping repeatedly. In that case, please restart the client.
  • This software is released under the MIT License. You may use, copy, modify, and distribute it in compliance with the license terms.
  • This software is provided “as is” without any express or implied warranty regarding availability, stability, or fitness for a particular purpose under specific network conditions.
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