Hi,
Actually this functionality is included in the latest xAPSpeech. It can play a wav file before speech which can be selected from the xAP message as well as a default for all messages. Looks like I completely missed updating the schema doc, sorry! I have added the extra item to the doc on mi4 and xAP wiki which is just a Sound= item in the tts.speak message. Only thing to note is the sound name should refer to the sound without the file extension
As you say this kind of this is best handled in a single message and not two. A xAP message can contain multiple blocks/sections but will only ever be about 1 class.
hth
James
On 30 Apr 2009, at 13:57, mstovenour wrote:
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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