## Link to GitHub Issue or related Pull Request, if one exists
## Description of change
Deprecate backend conversion options and replace with one unified option
for enabling WASAPI exclusive conversion to ASIO.
The new option takes in a string (ASIO driver name) and when filled out,
it automatically enables the ASIO backend.
This is to avoid confusion that was caused by the previous option - the
fact that it was split into two (one to enable the conversion, another
to optionally pick which ASIO driver to use) and that user needed to
specify an integer as opposed to the driver name.
## Testing
Tested on IIDX33. Old options should continue to work.
## Link to GitHub Issue, if one exists
Fixes#509
## Description of change
Implement `WrappedIAudioClient3`.
For now, we have only seen SDVX use it (EG final) and only when the
shared mode patch is enabled. Exclusive still goes through version 1.
This means that for V3 we can forego implementing backend conversion
logic (for now).
Only significant addition is `InitializeSharedAudioStream` and this IS
called by SDVX when shared mode patch is enabled.
## Testing
Tested EG final, tested year 1 data, also IIDX shared/exclusive wasapi.
## Link to GitHub Issue, if one exists
#477
## Description of change
Arena cab has two sound cards and it uses `WrappedIMMDeviceCollection`
to set the volume to 100% on boot on both, instead of the typical
`GetDefaultAudioEndpoint`.
## Testing
Testing Delta, testing other games as well as they are affected.
## Link to GitHub Issue, if one exists
n/a
## Description of change
`acmFormatSuggest` is known to cause significant perf issues on Linux;
add a hook to return cached results.
The fix is only active in the Linux variant.
For discussion, see
* https://codeberg.org/nixac/spicetools/issues/2
* https://codeberg.org/nixac/spicetools/issues/4
## Testing
I've only tested this on Windows, checking if iidx and popn can boot,
play songs without audio issues.
bicarus