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@lists.freeswitch.org> wrote:

---------- Forwarded message ---------- From: Lee Vidor <leevidor89@googlemail.com> To: freeswitch-users@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@lists.freeswitch.org> To: freeswitch-users@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 _________________________________________________________________________ Professional FreeSWITCH Services sales@freeswitch.com https://freeswitch.com

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