For simple usage, simply open the program and start playing music or audio.
Hit escape to close the program.

Manual: Options described here can be used in "Launch Options" on steam
Available options:

Option syntax description
-wh <integer> set wave height, default is 25
-a <number> set alpha (transparency) default 0.25
-mt <integer> set move time default 6
-alsa use ALSA instead of PipeWire (linux only)
-window run windowed instead of fullscreen
-fi force use of integrated GPU*
-fd force use of dedicated GPU*
-debug print debug output to bav_log.log
-display set which display to render to (fullscreen only)



*Steam appears to "hide" GPUs from Vulkan when multiple GPUs are present on a machine. You can run the program from command line/terminal with the force parameters and they will function as expected, but through steam you may run into trouble with them. There may be ways to circumvent this with environment variables or how you run steam, but I've not found a surefire way to do so, ymmv.


Log files can be obtained by right clicking on the game -> manage -> browse local files and then in the window that opens bav_log.log is the log file, feel free to report any issues to the support email or paste them here, with the log file.

Here's a couple common error codes that might show up and what they mean:

"error starting bac"

• -9996 - Invalid Device, try setting a different default device, and please send your log and information about your setup to the support email so I can work on fixing support for devices
  
• -9998 - Invalid Channels, if your device does not support 2 channels, you may run into this, use a device that supports at least 2 channels.

"failed to setup vulkan" (or any other vulkan related codes)

• -9 or -3 - Bad Driver, most common on Nvidia cards on Linux update your graphics drivers to the latest version, make sure the program is using the right GPU (use -fi to force integrated or -fd to force dedicated)
  
• -8 or -11 - incompatible hardware (small chance could be a bad driver, see above) your hardware does not support the format or features needed to run BAV, this should only happen with GPUs made before ~2012

I'll update this list as needed if other codes start appearing in errors.