Comment 2 for bug 1197513

Your sound appears to be okay in general. The problem is most likely that the site uses embedded Windows Media Player. I could not get sound from it either:

Referrer URI: http://www.metro951.com/media-player/playerFF.html

(totem-plugin-viewer:4469): Gtk-CRITICAL **: gtk_widget_realize: assertion `widget->priv->anchored || GTK_IS_INVISIBLE (widget)' failed
TotemEmbedded-Message: Viewer state: STOPPED
TotemEmbedded-Message: totem_embedded_setup_stream called: uri http://201.212.5.144/metro, base_uri: http://www.metro951.com/media-player/playerFF.html
TotemEmbedded-Message: totem_embedded_clear_playlist
Emptying current_uri
totem_embedded_set_uri uri http://201.212.5.144/metro base http://www.metro951.com/media-player/playerFF.html => resolved http://201.212.5.144/metro (subtitle (null) => resolved (null))
TotemEmbedded-Message: totem_embedded_open_stream called: with size 108
TotemEmbedded-Message: totem_embedded_open_internal 'fd://0?size=108' subtitle '(null)' is-browser-stream 1 start-play 1
** Message: Should be dual type 'video/x-ms-asf', making sure now
** Message: Is dual type 'video/x-ms-asf'
TotemEmbedded-Message: Viewer state: PLAYING

(totem-plugin-viewer:4469): Gtk-WARNING **: Calling Inhibit failed: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files
TotemEmbedded-Message: totem_embedded_close_stream
TotemEmbedded-Message: Setting the current playlist to /tmp/plugtmp/plugin-metro (uri: http://201.212.5.144/metro base: http://www.metro951.com/media-player/playerFF.html)
TotemEmbedded-Message: totem_embedded_clear_playlist
Emptying current_uri
totem_embedded_set_uri uri file:///tmp/totem-browser-plugin-playlist-0WHQZW base http://www.metro951.com/media-player/playerFF.html => resolved file:///tmp/totem-browser-plugin-playlist-0WHQZW (subtitle (null) => resolved (null))
TotemEmbedded-Message: totem_embedded_do_command: Play

** (totem-plugin-viewer:4469): CRITICAL **: bacon_video_widget_play: assertion `bvw->priv->mrl != NULL' failed
[New Thread 0x7fffc77ff700 (LWP 4482)]
[New Thread 0x7fffc6cff700 (LWP 4485)]