First I'm not being critical of pulseaudio. Just trying to get my system to do what I would like. Preferably with the tools that come with Karmic.
I have a mixing board that I use to select various radio sources depending on what I wish to do. Ham radio in one feed, or another, shortwave, xm-radio, mic, and so on.
There are times when I want to listen to one of those sources. I'm not really interested in recording from them at the time, or building a patch bay that I have to change every time I want to change what I'm doing.
Under 9.04, I could right click on the volume control, select Preferences, select the Input tab, use the pull-down to select Line-In, click the checkbox to monitor, adjust the levels as needed, and I was listening to the source in question.
I'm not running into anything quite so simple under 9.10. The volume control applet will allow me to change the volume of the default-out sink, which is fin, or mute it, also fine, or even pull up the 'preference' for it, which lets me also adjust the volume. Ok. Nice, but not what I'm looking for. So I select the PulseAudio Device Chooser from the Applications > Sound & Video menu, and it very nicely throws up another PulseAudio Device Chooser close to the Volume control in the appropriate panel. Not really quite what I was expecting of an app in a menu, but OK. Close the spares and click on the remaining device chooser in the panel, and I have to admit, I'm not getting very far with the various options.
PulseAudio Manager looks like the logical place to go, However I'm not seeing anything that looks like a way to enable monitoring through Internal analog-out, anything on Internal Line-In.
Well, perhaps it's in the PulseAudio Device Chooser Volume control. Well, yes I can see the device there, I can even see that the bar meeter is fluctuating with the input level, however I don't see any way to pass the audio from there through to the default output sink.
In all honesty I suspect it's a brief python script that would like the two, acting as an application that acts as a sink for the Line-In, then pipes that to a source for the Default output sink for the system. The truth is that I don't think it should need to be created as a stand alone application, or even as a user installed plug-in to the pulse audio system. I'm thinking it should be an 'option' for any input device to be fed directly to the default output sink either at any time, or as a user configured permanent configured default
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