[FEAT]: Add support for WASAPI loopback capture (per-application audio capture) #30
Description
What problem are you facing?
- audio isn`t recorded
- audio is recorded with artifacts
- problem with "silence"
- other
What is the cause of the error (in your opinion)?
- PyAudio\PortAudio bug
- I just need help(or answer)
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- I have provided a minimal reproducible example (and checked its correctness)
- I'm sure I fully described the problem
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Feature Description
Currently, PyAudioWPatch doesn't support capturing audio from individual applications through WASAPI, despite Windows' native WASAPI having this capability through loopback recording with device selection.
Problem
While WASAPI supports capturing audio from specific applications (capturing only Chrome or only Discord audio), this functionality is not exposed through the current PyAudioWPatch implementation. This limits use cases such as:
• Recording specific application audio for streaming/recording
• Application-specific audio monitoring
• Audio processing for individual applications
• Selective audio capture for accessibility tools
Proposed Solution
Add support for WASAPI loopback capture that allows users to specify which application's audio output to capture. This could be implemented by:
• Exposing WASAPI device enumeration for audio sessions
• Adding ability to select specific audio sessions/endpoints
• Providing documentation/examples for per-application capture
Additional Context
Windows WASAPI provides this functionality through:
• IAudioSessionManager2 interface for enumerating audio sessions
• IAudioSessionControl for session-specific control
• Loopback recording can be targeted to specific sessions