How To Record Streaming Audio In Ubuntu:
Audio Recorder records all type of sound your computer makes. It records audio played through your system’s soundcard, microphones, browsers, webcams and more. It provides option of selecting the recording device such as webcam, microphone, Skype etc.
Use a PPA to install Audio Recorder in Ubuntu. Use the following commands in terminal:
sudo apt-add-repository ppa:osmoma/audio-recorder
sudo apt-get update
sudo apt-get install audio-recorder
Once installed start the application from Unity Dash. You can also download the source code from launchpad.