GStreamer on ROS using common_audio package

[piti_wity]

UPDATE: I manage to solve the ros problem, now I have another error as:

[ERROR] [1507110828.315476430]: gstreamer: Could not open audio device for
recording.

Any idea of that? I attach the screenshoot

<http://gstreamer-devel.966125.n4.nabble.com/file/t377998/Schermata_da_2017-10-04_11-53-54.png> 






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