Re: [orca-list] orca and pulse audio work around

[Alex Midence <alex midence gmail com>]

Any time you use a concatenated speech synth i.e. one created by samplings
of phonemes produced by an actual human voice.  If you want responsiveness,
you need a formant speech synth.   It won't be human-sounding or even very
pleasant but, it will get the job done and quick too.  

Alex M


-----Original Message-----
From: orca-list [mailto:orca-list-bounces gnome org] On Behalf Of Thomas
Ward
Sent: Tuesday, May 13, 2014 1:51 PM
To: orca-list
Subject: Re: [orca-list] orca and pulse audio work around

Hi Luke,


On 5/13/14, Luke Yelavich <themuso ubuntu com> wrote:
> I find that quite interesting, given that we do not have proper 
> speech-dispatcher drivers for cepstral yet. Is there a difference in 
> response times between the 2 systems, given one has a direct driver, 
> and the other is working through a command-line program?

Yes, there are. On Windows the Cepstral voices I have tried such as Callie
does seem a bit more responsive and less likely to crash than on Linux. On
Linux Callie tends to lag more and will often cut out completely. So
creating direct speech drivers for Speech-Dispatcher would probably make the
problem less noticeable with Orca. That said, the Cepstral voices like
Callie, David, Dianne are still slower and tend to lag a lot more than say
Espeak so they aren't particularly good if someone wants fast responsive TTS
output in any case.

HTH
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