Some thinking has gone into an interface like this as part of the Rayo protocol (http://xmpp.org/extensions/xep-0327.html#session-component-execution-prompt), and might be useful as a template for a similar ARI/AMI interface.
On 7 March 2014 12:11, Matthew Jordan <mjordan@xxxxxxxxxx> wrote:
On Fri, Mar 7, 2014 at 8:59 AM, Paul Belanger <paul.belanger@xxxxxxxxxxxxxx> wrote:
On Fri, Mar 7, 2014 at 8:09 AM, Ben MerrillsI'll be actually going down this path sooner then later. Some of our
<b.merrills@xxxxxxxxxxxxxxxx> wrote:
> Can I pick back up on this then, and ask if there are any plans to incorporate speech into ARI?
>
> We're using unimrcp at the moment for both ASR and TTS, and would love to be able to access that functionality from ARI too.
>
> In terms of TTS, a short cut might be to include URIs in the audio schema for Play(). This would allow you to easily integrate 3rd party TTS engines that export wav/mp3 etc via a URI. Just a thought :)
>
clients have been asking for this functionality and I've been checking
out unimrcp too. Like you I'm trying to best figure out how to
interface ARI with TTS / ARS. I'd be interested to see how others are
doing this and see if we could get some sort of spec going.
Prefacing this with IANAL...
With regards to the unimrcp library in particular: The unimrcp library is licensed under the Apache license 2.0 [1]. This license is not compatible with the GPLv2 [2]. Linking to the unimrcp library would - as best as I can tell - violate the GPLv2 license due to the patent termination and indemnification provisions. Merely licensing an Asterisk module that uses said library as GPLv2 does not prevent the linkage from that module to said library from creating a derivative work - so releasing said modules as GPLv2 does not, as best as I can tell [3], remove the licensing issues. Based on this, using said modules in Asterisk is a violation of the GPL.
More generally, yes, I would be interested in exposing Asterisk's generic speech recognition API through ARI. The first step on that would be to propose the API on this mailing list - preferably, a wiki page should be made on the Asterisk wiki here [4] as well.
Matt
[1] http://www.apache.org/licenses/LICENSE-2.0
[2] http://www.apache.org/licenses/GPL-compatibility.html
[3] http://www.unimrcp.org/announcements/unimrcppackageforasterisk100released
--
Matthew JordanDigium, Inc. | Engineering Manager445 Jan Davis Drive NW - Huntsville, AL 35806 - USACheck us out at: http://digium.com & http://asterisk.org
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