[mkl]

Is File > Export not suitable? And if WASAPI can be used with your browser, won't it work for this? I don't really understand the use case though.

[ycombinete]

I mean record system output audio. E.g. audio streamed to speakers. Desktop Audacity can capture this audio directly on Windows. The specific use case is extracting the audio from long videos, to upload to a transcription service.

It’s an edge case for sure. Since the video is hosted weirdly and no video downloaders I’ve tried can get the video downloaded with the audio.

So we simply stream the video normally in the browser, and capture the audio output directly into Audacity.

[mkl]

Oh, I see, WASAPI as Audacity's input not output. Setting up a virtual microphone with something like VoiceMeeter might do it, since the browser would just see it as a microphone.

[ycombinete]

Oh, that looks promising! Thank you.