gbutler@gbutler-laptop:~$ GST_DEBUG=5 epiphany 2>&1 | tee epiphany-debug.log
...
...
gbutler@gbutler-laptop:~$ grep -i pulse epiphany-debug.log 
0:00:04.078655238 21845       0x8d6e60 LOG             GST_REGISTRY gstregistrybinary.c:1156:gst_registry_binary_load_plugin: read strings for name='pulseaudio'
0:00:04.078674793 21845       0x8d6e60 LOG             GST_REGISTRY gstregistrybinary.c:1157:gst_registry_binary_load_plugin:   desc.description='PulseAudio plugin library'
0:00:04.078690507 21845       0x8d6e60 LOG             GST_REGISTRY gstregistrybinary.c:1158:gst_registry_binary_load_plugin:   filename='/usr/lib/gstreamer-0.10/libgstpulse.so'
0:00:04.083462886 21845       0x8d6e60 DEBUG           GST_REGISTRY gstregistry.c:351:gst_registry_add_plugin:<registry0> adding plugin 0x19a53a0 for filename "/usr/lib/gstreamer-0.10/libgstpulse.so"
0:00:04.083507025 21845       0x8d6e60 LOG             GST_REGISTRY gstregistry.c:359:gst_registry_add_plugin:<registry0> emitting plugin-added for filename "/usr/lib/gstreamer-0.10/libgstpulse.so"
0:00:04.083527209 21845       0x8d6e60 DEBUG           GST_REGISTRY gstregistrybinary.c:1178:gst_registry_binary_load_plugin: Added plugin 'pulseaudio' plugin with 3 features from binary registry
0:00:04.083544390 21845       0x8d6e60 DEBUG           GST_REGISTRY gstregistrybinary.c:924:gst_registry_binary_load_feature: Plugin 'pulseaudio' feature typename : 'GstElementFactory'
0:00:04.083638534 21845       0x8d6e60 DEBUG           GST_REGISTRY gstregistrybinary.c:963:gst_registry_binary_load_feature: Element factory : 'PulseAudio Audio Sink' with npadtemplates=1
0:00:04.083729466 21845       0x8d6e60 DEBUG           GST_REGISTRY gstregistry.c:454:gst_registry_add_feature:<registry0> adding feature 0x19ad360 (pulsesink)
0:00:04.083771230 21845       0x8d6e60 LOG             GST_REGISTRY gstregistry.c:468:gst_registry_add_feature:<registry0> emitting feature-added for pulsesink
0:00:04.083792322 21845       0x8d6e60 DEBUG           GST_REGISTRY gstregistrybinary.c:1042:gst_registry_binary_load_feature: Added feature pulsesink
0:00:04.083811109 21845       0x8d6e60 DEBUG           GST_REGISTRY gstregistrybinary.c:924:gst_registry_binary_load_feature: Plugin 'pulseaudio' feature typename : 'GstElementFactory'
0:00:04.083895545 21845       0x8d6e60 DEBUG           GST_REGISTRY gstregistrybinary.c:963:gst_registry_binary_load_feature: Element factory : 'PulseAudio Audio Source' with npadtemplates=1
0:00:04.083968947 21845       0x8d6e60 DEBUG           GST_REGISTRY gstregistry.c:454:gst_registry_add_feature:<registry0> adding feature 0x19ad480 (pulsesrc)
0:00:04.084011340 21845       0x8d6e60 LOG             GST_REGISTRY gstregistry.c:468:gst_registry_add_feature:<registry0> emitting feature-added for pulsesrc
0:00:04.084029499 21845       0x8d6e60 DEBUG           GST_REGISTRY gstregistrybinary.c:1042:gst_registry_binary_load_feature: Added feature pulsesrc
0:00:04.084046400 21845       0x8d6e60 DEBUG           GST_REGISTRY gstregistrybinary.c:924:gst_registry_binary_load_feature: Plugin 'pulseaudio' feature typename : 'GstElementFactory'
0:00:04.084163312 21845       0x8d6e60 DEBUG           GST_REGISTRY gstregistrybinary.c:963:gst_registry_binary_load_feature: Element factory : 'PulseAudio Mixer' with npadtemplates=0
0:00:04.084201515 21845       0x8d6e60 DEBUG           GST_REGISTRY gstregistry.c:454:gst_registry_add_feature:<registry0> adding feature 0x19ad5a0 (pulsemixer)
0:00:04.084241882 21845       0x8d6e60 LOG             GST_REGISTRY gstregistry.c:468:gst_registry_add_feature:<registry0> emitting feature-added for pulsemixer
0:00:04.107645628 21845       0x8d6e60 DEBUG           GST_REGISTRY gstregistrybinary.c:1042:gst_registry_binary_load_feature: Added feature pulsemixer
0:00:05.944281215 21900       0x8d6e60 LOG             GST_REGISTRY gstregistry.c:860:gst_registry_scan_path_level:<registry0> file /usr/lib/gstreamer-0.10/libgstpulse.so looks like a possible module
0:00:05.944296650 21900       0x8d6e60 LOG             GST_REGISTRY gstregistry.c:882:gst_registry_scan_path_level:<registry0> file /usr/lib/gstreamer-0.10/libgstpulse.so cached
0:00:05.944302586 21900       0x8d6e60 LOG             GST_REGISTRY gstregistry.c:885:gst_registry_scan_path_level:<registry0> marking plugin 0x19a53a0 as registered as /usr/lib/gstreamer-0.10/libgstpulse.so
0:00:06.780218657 21845       0x8d6e60 DEBUG                default gstfactorylists.c:201:gst_factory_list_debug: pulsesink