DuoAudio Application v1.0
====================================

This app was (for the most part) entirely generated by AI.  It was completed in about 5 hours.  
There are a few bugs in the diagnostic section, but it works well enough to put out here.  

We use this on a daily basis to listen to windows audio on multiple devices simultaneously in multiple rooms in the house.  
Currently, we are using Edifier R1280DBs speakers in bluetooth mode.
I haven't really tested out the some of the bluetooth recovery function yet, but I'll get to that shortly.


QUICK START (once built)
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1. Run DuoAudio.exe
2. Select a Source Device (audio output to capture from)
3. Select a Destination Device (where to play the audio)
4. Check "Enable Duplication"
5. Click "Start Duplication"

WHAT THIS APPLICATION DOES
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This application captures audio from an output device (like your speakers) 
and duplicates it to another output device (like Bluetooth headphones) in 
real-time using WASAPI loopback capture.  Built using NAudio code library.

EXAMPLE USE CASES
-----------------
- Play music through speakers AND Bluetooth headphones simultaneously
- Route audio to multiple rooms with different speaker systems
- Share audio with someone using separate headphones

REQUIREMENTS
------------
- Windows 10 or Windows 11
- At least 2 audio output devices
- .NET 9.0 Runtime installed

END USER FILES (once built)
-----
- DuoAudio.exe - The application (single file, self-contained)
- README.txt - This file

DOCUMENTATION  
-------------
For detailed documentation, see:
- USER_GUIDE.md - Complete user guide with tutorials and FAQ
- README.md - Technical documentation
- TEST_RESULTS.md - Test results and validation

DEVELOPERS
----------
This was built and developed in VS Code. 
Install .NET 9.0 SDK.
The build process should NuGet the NAudio library for you.
You can build the application using the following command: 
    Dotnet Build -c [Debug | Release]
Publish it with: (this command assumes working directory is DuoAudio)
    dotnet publish -c Release -r win-x64 --self-contained false -o "../publish"
That will generate the executable file in the publish folder. 
Build the distributable installer file with: (assumes Inno Setup is installed)
    Build-Installer.bat

AI placed the build files in interesting locations.  I'll move them to a more logical place in the future.

TROUBLESHOOTING
---------------
- If no devices appear, ensure audio devices are connected and enabled
- If audio doesn't play, check device volumes and ensure devices aren't in use
- For Bluetooth issues, try manually reconnecting the device in Windows settings

SUPPORT
-------
For issues and questions, refer to the USER_GUIDE.md file.

VERSION
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Version 1.0 - January 2026


CREDITS
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Thanks to Mark Heath and everyone that worked on NAudio.