[Feature] Stream audio source selection (Win11)

A clear and concise description of the feature you'd like to see

Hello,

When streaming an application, currently the only option is "Stream with audio" which seems to pull from system audio The issue I'm experiencing with this is stream viewers then hear themselves as their audio coming to my client is sent to the system for me to hear, and is also sent back to them

If there could be granularity of what audio to send, or moreso what NOT to send, primarily being discord's incoming audio to prevent the issue described, that'd resolve the issue

Thank you for your time, greatly appreciate the project

Implementation Notes

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Additional context

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Request Agreement

• I've searched existing issues and this hasn't been suggested before
• This is a core modification feature, not a plugin request (those go in Discord)
• This feature would benefit most users, not just a specific use case
• I am willing to work on this myself