[Freeswitch-users] Nuance Speech Server / Vocalizer MRCPv2 mod_unimrcp simultaneous licenses not releasing quickly enough.

Christopher Rienzo cmrienzo at gmail.com
Tue Feb 26 04:33:31 MSK 2013


You can also try MRCPv1 (RTSP) and see if there is better performance.
 Using SIP to set up an MRCP session is silly.

Chris


On Mon, Feb 25, 2013 at 6:42 PM, Michael Collins <msc at freeswitch.org> wrote:

> Another case of DRM hurting only those who've paid for it... *sigh*
>
> I recommend calling your VAR or Nuance and gently but firmly insisting on
> a resolution.
>
> -MC
>
>
> On Mon, Feb 25, 2013 at 2:21 PM, <cmrienzo at gmail.com> wrote:
>
>> We also had an issue with nuance eating licenses.  We had enough room to
>> tolerate this but did have to occasionally reboot servers when too many
>> were consumed.
>>
>> Chris
>>
>>
>>
>>
>> On Feb 25, 2013, at 3:21 PM, Rob Hutton <justlikeef at gmail.com> wrote:
>>
>> We have a similar situation on a Cisco UCCX platform that we ended up
>> having to write a script to bounce the services every couple of hours to
>> clear.  We haven't seen a fix from Nuance yet.
>>
>> On Mon, Feb 25, 2013 at 2:32 PM, Jason Moran <jmoran at secureachsystems.com
>> > wrote:
>>
>>>  In connecting to Nuance Speech Server’s MRCPv2 for text-to-speech
>>> (Nuance Vocalizer) using mod_unimrcp, a single phone call which has several
>>> different TTS phrases should only use up 1 single simultaneous license.
>>> However, I am seeing a call use up 2,3,4 (etc) like it is not releasing the
>>> connection/license.****
>>>
>>> ** **
>>>
>>> I looked this up and some forums have noted that Nuance “does things
>>> wrong” and uniMRCP needs to send Nuance the “RTCP BYE” to tell Nuance that
>>> it is done with the synthesizer speech.  But I tried that, and it still
>>> eats up the licenses. Within a couple of calls I’m out of TTS ports and the
>>> calls fail (but they clear again after several more seconds).****
>>>
>>> ** **
>>>
>>> <!-- enable/disable rtcp support -->****
>>>
>>> <param name="rtcp" value="1"/>****
>>>
>>> <!-- rtcp bye policies (rtcp must be enabled first)****
>>>
>>>      0 - disable rtcp bye****
>>>
>>>      1 - send rtcp bye at the end of session****
>>>
>>>      2 - send rtcp bye also at the end of each talkspurt (input)****
>>>
>>> -->****
>>>
>>> <param name="rtcp-bye" value="2"/>****
>>>
>>> <param name="rtcp-tx-interval" value="5000"/>****
>>>
>>> ** **
>>>
>>> Ideas? Experience?****
>>>
>>> -Jason****
>>>
>>> _________________________________________________________________________
>>> Professional FreeSWITCH Consulting Services:
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>>> http://www.freeswitchsolutions.com
>>>
>>> 
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>>
>> 
>> 
>>
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>>
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>
>
> --
> Michael S Collins
> Twitter: @mercutioviz
> http://www.FreeSWITCH.org
> http://www.ClueCon.com
> http://www.OSTAG.org
>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
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