[PATCH] Reopen libao device handles when audio parameters change.

[Andrei Kholodnyi]

> Why should how sound icons are played depend on the synth? imho this
> should go into module_utils.c ?It seems to me that unless an audio
> backend doesn't support resampling itself we should have the audio
> system we are using pulse / alsa / libao do the resampling instead of
> writing our own code to do.

Hi Trev,

IMO it is a responsibility of the TTS engine.
we have a special type for it called MSGTYPE_SOUND_ICON
which is processed by the corresponding synth e.g.

        case MSGTYPE_SOUND_ICON:
                {
                        char *msg = g_strdup_printf("<audio 
src=\"%s%s\">%s</audio>",
                                                                                
EspeakSoundIconFolder, data, data);
                        result = espeak_Synth(msg, strlen(msg) + 1, 0, 
POS_CHARACTER, 0,
                                                                  flags, NULL, 
NULL);
                        g_free(msg);
                        break;
                }

And if synth can not do it, then we should do something like:
        case MSGTYPE_SOUND_ICON:
               convertSoundIcon(icon, &track);

Andrei.