#17 Allow more than one TTS voice to be used during one particular callflow (requires SSML support)

[Vikram Ramanarayanan]

Currently we can use only TTS voice per callflow, but we would ideally, like to use more than one voice per call flow. This will require more advanced SSML (Speech Synthesis Markup Language) capabilities.

[David Suendermann-Oeft]

Actually, we are currently limited to one voice per Halef instance as it is configured on the speech server. A changed requires a Halef restart.

The way to implement dynamic voices is to enable SSML support. This should not be too difficult as MARY (and I believe Festival, too) support SSML. It is therefore only a matter of changing JVXML and Cairo to propagate SSML code found in the VXML instructions to the synthesizer. If, and to which extent, OpenVXML will have to be changed, too, will have to be seen later.

[Martin Mory]

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Hi David,

I am sorry for the delayed reply, I am very busy at the moment....
Most of my exams will be over end of February and during the semester
break there should be time if not already earlier! Please keep me
updated if something will be done in the meanwhile!

Best regards
Martin

Am 04.12.2014 um 23:42 schrieb David Suendermann-Oeft:

• assigned_to: Vikram Ramanarayanan --> Martin Mory -
  Comment:

Martin,

Will you have cycles to help us with this? Yours,

DSO

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** [tickets:#17] Allow more than one TTS voice to be used during
one particular callflow (requires SSML support)**

Status: open Milestone: 1.0 Created: Thu Dec 04, 2014
09:24 PM UTC by Vikram Ramanarayanan Last Updated: Thu Dec 04,
2014 10:38 PM UTC Owner: Martin Mory

Currently we can use only TTS voice per callflow, but we would
ideally, like to use more than one voice per call flow. This will
require more advanced SSML (Speech Synthesis Markup Language)
capabilities.

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[David Suendermann-Oeft]

Martin,

Will you have cycles to help us with this?
Yours,

DSO