Text to Speech with wav File Introduction

["mstovenour" <Mstovenour@xxxxxxxxx>]

I have an alerting application where I need a TTS application to play
a wav file prior to speaking the text.  There are multiple wav files, from
a simple chime to a siren, that accompany the text; this rules out hard
coding the wav file into the TTS application.  Clearly I'll need to build
both a new client and TTS application.  My question is regarding the schema
to use.

Is there a single schema that can communicate both speech and wav files? 
If not, do you think I should extend the tts.speak to include attributes
for intro audio files or should I create a totally new schema for the
combination (e.g. tts.alert)?  I think it is a bad idea to try sending
separate messages because UDP does not guarantee sequenced delivery and it
would require a complicated client that knows to wait for multiple messages
from different schemas.  As an alternative, is it possible to encapsulate
two different schemas in the same message (e.g. tts.speak and
Playlist.Track)?



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