[External] Re: DEC-TALK USB

[Klarich , Terry J .]

Hi Luke:

The DEC-Talk USB does support index marks.  From your note, I'm thinking it is 
important for SPD to have an accurate acknowledgement of when speech actually 
terminates.

Index marks from 0 to 99 are supported by the DTUSB.  When a SPEAK command is 
issued, I believe SPD starts with __SPD_INDEX_MARK_0 and then increments the 
number each time an index mark is issued.  How many index marks can be issued 
by SPD for each SPEAK command?

By using index marks to tell SPD when speech is done, I will need to 
distinguish between index marks that are reported back to SPD and the index 
mark that indicates when speech is complete.  Do I always use index 99 for 
this?  Or, would it be better to use index mark n + 1 where n is the last index 
mark issued by spd during the SPEAK command?

If SPD can issue more than 100 index marks per SPEAK command, I will need to 
use Modula 100 and keep track of the last index mark returned.

Any suggestions or insights are welcome.

THANKS!
Terry

-----Original Message-----
From: Speechd [mailto:address@hidden On Behalf Of Luke Yelavich
To: address@hidden
Sent: Wednesday, January 13, 2016 5:51 PM
To: speechd at lists.freebsoft.org
Subject: [External] Re: DEC-TALK USB

On Thu, Jan 14, 2016 at 09:32:36AM AEDT, Klarich, Terry J. wrote:
> Evidently, the synthesizer has a large buffer.  A lot of text for speaking 
> can be stored on the synthesizer.
> 
> Will it be a problem to send the 7##-end command before speech is complete?  
> If not, I'm going to have to find out a way to tell if text is being 
> synthesized or not.

Speech Dispatcher does support sending index marks back to clients to indicate 
where the speech synthesizer is up to, and I know older DECtalk models 
supported index marking to some extent, can't remember how flexible it was 
though. Surely the DECtalk USB supports the same DECtalk command set?

Luke

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