On Win 7 I am able to choose the audio output as audio source: on Haiku, instead, I don't have an equivalent option.

[Giova84]

About 3 years ago I opened this ticket: #9286; #9286 was meant as enhancement.

However, since in the meantime I installed Windows 7 on my main computer, I've found the following behavior (this ticket is about a specific lack on my system; the #9286, instead, is about an improvement on systems which doesn't provide this hardware feature):

On my system I have an HDA integrated sound card, and on Windows 7 I am able to choose, as audio input in the audio preferences, the "stereo mix" - I can record, as audio stream, everything that is sent to the audio output, routed to the audio input - this feature is available on Win 7: ​http://s8.postimg.org/50h7dn92t/HDA_Stereo_Mix_Input.png - but on Haiku I'm not able to choose an equivalent of "stereo mix" as audio source: there's not any option available inside Media Preferences.

hrev50141 and also older versions.

[Barrett]

I think this is mostly driver dependant, I'm not sure our HDA driver can do this.

[phoudoin]

Maybe the system AudioMixer could support multiple output, allowing to use general system wide audio output as an input source too, which an AudioRecorder could then use as audio source.