Can my system play sound through GStreamer ?
You can test this by trying to play a sine tone. For this, you need to link the audiotestsrc element to an output element that matches your hardware. A (non-complete) list of output plug-ins for audio is • osssink for OSS output • esdsink for ESound output • artsdsink for aRTs output (not ported to 0.10 yet) • alsasink for ALSA output • alsaspdifsink for ALSA S/PDIF output • jacksink for JACK output (not available yet) First of all, run gst-inspect on the output plug-in you want to use to make sure you have it installed. For example, if you use OSS, run $ gst-inspect osssink and see if that prints out a bunch of properties for the plug-in. Then try to play the sine tone by running $ gst-launch audiotestsrc ! audioconvert ! audioresample ! osssink and see if you hear something. Make sure your volume is turned up, but also make sure it is not too loud and you are not wearing your headphones. In GNOME, you can configure audio output for most applications by running $ gstreamer-properties
