[FFmpeg-user] sound recording input selection and mix

[dE .]

On 01/17/12 20:21, pop wrote:
> I would like to assign a pair of Ubuntu "HotKey" commands in the 
> terminal to switch between sound sources (1) microphone and (2) 
> monitor for recording screencasts.  Right now, while recording with 
> microphone I must open  "Sound Preferences/input/" window, then 
> reassign from "Logitech USB Headset Analog Stereo" to "Internal Audio 
> Analog Stereo" in order to record a playing video's audio.  This is an 
> Either/Or kind of sound recording.  Ideally, I would like to "mix" 
> monitor audio with microphone audio.  I have tried using the Loopback 
> feature, but that does not allow adjusting sound levels of microphone 
> versus monitor audio on the fly.    I am making YouTube FFMPEG 
> tutorials "Ubuntu Basics rjwse"
> Thanks, in advance.  Pop
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Are you using pulseaudo for recording?