WinUI3: can a packaged WinUI3 app access the DSP?

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I'm writing a WinUI3 app, which uses a library to access the DSP. But when I package the WinUI3 app, it can't access the DSP.

When I use the Unpackaged mode, it can work correctly.

I know that the packaged apps are more limited than unpackaged apps. But I'm not sure if the packaged WinUI3 app is restricted to access the DSP or something is configured wrong when I package the app.

Can anyone help me? Thanks.

Windows App SDK
Windows App SDK
A set of Microsoft open-source libraries, frameworks, components, and tools to be used in apps to access Windows platform functionality on many versions of Windows. Previously known as Project Reunion.
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