Comment 12 for bug 736349

Today's findings, I'll just write them down here and create proper patches later as I'm running out of time:

* for ubuntu-sounds, I recommend we symlink audio-test-signal.ogg -> phone-incoming-call.ogg. The latter one is the only sound that's long and clear enough to be heard even with HDMI/digital receivers (that cut off some of the initial signal).

* the other problem is that speaker-test does not pick up the sound theme. Whether this is gnome-media's or libcanberra's fault can be debated, but it was more easily hacked in gnome-media, excerpt from a patched gvc-speaker-test.c:

static void
gvc_speaker_test_set_theme (ca_context *ca)
{
        GtkSettings *s = gtk_settings_get_for_screen(gdk_screen_get_default());
        gchar *theme_name = NULL;

        if (!s) return;

        g_object_get(G_OBJECT(s), "gtk-sound-theme-name", &theme_name, NULL);

        if (theme_name) {
                ca_context_change_props(ca, CA_PROP_CANBERRA_XDG_THEME_NAME, theme_name, NULL);
                g_free(theme_name);
        }
}

static void
gvc_speaker_test_init (GvcSpeakerTest *speaker_test)
{
        GtkWidget *face;

        speaker_test->priv = GVC_SPEAKER_TEST_GET_PRIVATE (speaker_test);

        ca_context_create (&speaker_test->priv->canberra);
        ca_context_set_driver (speaker_test->priv->canberra, "pulse");
        ca_context_change_props (speaker_test->priv->canberra,
                                 CA_PROP_APPLICATION_ID, "org.gnome.VolumeControl",
                                 NULL);
        gvc_speaker_test_set_theme(speaker_test->priv->canberra);