[Freeswitch-users] mod_tts_commandline hangs in call flow

[Lee Vidor]

It seems enabling the following command resolves my problem:

<param name="threaded-system-exec" value="true"/>

Can anyone explain in detail what this variable does?

Thanks!



On Mon, 3 Sep 2018 at 20:30, Lee Vidor via FreeSWITCH-users <
freeswitch-users at lists.freeswitch.org> wrote:

>
>
>
> ---------- Forwarded message ----------
> From: Lee Vidor <leevidor89 at googlemail.com>
> To: freeswitch-users at lists.freeswitch.org
> Cc:
> Bcc:
> Date: Fri, 31 Aug 2018 13:50:27 +0100
> Subject: mod_tts_commandline hangs in call flow
> Hi
>
> I'm currently using mod_tts_commandline with a python script to AWS text
> to speech API. The flow works fine during a single call.
>
> Event socket API -> Freeswitch dialplan -> mod_tts_commandline -> Python
> script -> AWS API -> Voice file -> Freeswitch say
>
> However when there a number of concurrent calls (even just 10 to 15) the
> request to execute the python script hangs until all the calls are at the
> same requesting state. As if mod_tts_commandline is waiting for something
> to happen.
>
> Dial plan:
>
>         <extension name="tts_google">
>             <condition field="destination_number" expression="^11111$">
>                 <action application="set" data="call_timeout=60" />
>                 <action application="answer"/>
>                 <action application="detect_silence" data="100 30 25000"/>
>                 <action application="speak"
> data="tts_commandline|${lang}|${text}" />
>                 <action application="hangup"/>
>             </condition>
>         </extension>
>
> tts_commandline.conf:
>
>         <param name="command" value="/usr/bin/python
> /usr/local/freeswitch/scripts/synthesize_text.py --language=${voice}
> --filename=${file} --text=${text}"/>
>     </settings>
>
> Execution of python script in freeswitch logs:
>
> 2018-08-30 11:19:57.641892 [ERR] switch_ivr_play_say.c:2385
> switch_ivr_detect_silence: SILENCE DETECTED
> 2018-08-30 11:19:57.641892 [DEBUG] switch_core_codec.c:248
> sofia/external/33123456789 Restore previous codec PCMU:0.
> EXECUTE sofia/external/33123456789 speak(tts_commandline|en-US|Hi, This is
> a test message)
> 2018-08-30 11:19:57.641892 [DEBUG] switch_ivr_play_say.c:3025 OPEN TTS
> tts_commandline
> 2018-08-30 11:19:57.641892 [DEBUG] switch_ivr_play_say.c:3035 Raw Codec
> Activated
> 2018-08-30 11:19:57.641892 [DEBUG] mod_tts_commandline.c:160 Executing:
> /usr/bin/python /usr/local/freeswitch/scripts/synthesize_text.py
> --language='en-US'
> --filename='/tmp/92ec5996-0dc8-4293-b5ba-465430811fed.tmp.wav' --text='Hi,
> This is a test message'
>
> "Simultaneous calls requesting mod_tts_commandline"
>
> Log from python script: (notice it's called with a 15 second delay)  ---> *What
> is causing this delay?*
>
> 2018-08-30 11:20:12,488 DEBUG Called script
> 2018-08-30 11:20:12,490 DEBUG Arguments
> Namespace(filename='/tmp/92ec5996-0dc8-4293-b5ba-465430811fed.tmp.wav',
> language='en-US', ssml=None, text='Hi, This is a test message')
> 2018-08-30 11:20:12,490 DEBUG synthesize_text requested
>
> The python script executes fine and returns to freeswitch:
>
> 2018-08-30 11:20:14.541919 [DEBUG] switch_core_file.c:342 File
> /tmp/c61d2034-c1b1-4f42-932f-350484553b5a.tmp.wav sample rate 24000 doesn't
> match requested rate 8000
> 2018-08-30 11:20:14.541919 [DEBUG] switch_ivr_play_say.c:2729 Speaking
> text: Hi, This is a test message
>
> Any help or further debugging steps would be appreciated.
>
> Thanks
>
> Lee
>
>
>
> ---------- Forwarded message ----------
> From: Lee Vidor via FreeSWITCH-users <
> freeswitch-users at lists.freeswitch.org>
> To: freeswitch-users at lists.freeswitch.org
> Cc:
> Bcc:
> Date: Mon, 03 Sep 2018 12:30:09 -0700 (PDT)
> Subject: [Freeswitch-users] mod_tts_commandline hangs in call flow
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