[Freeswitch-users] Send RTP to external server

Wed Apr 18 15:21:30 UTC 2018

Hi all,
I worked on this POC script:
https://github.com/Mickaelh51/rtp_parser/blob/master/pyshark_rtp_test.py
It can parse pcap file with real sip calls.

I can create a raw file with audio data (one file by leg), It's exactly I
want do do ;)

But now I wan to stream this to kaldi with websocket... it's hard :( (for
me)

Do you think I'm on the good way with this POC ?

I can see other ways maybe:
- https://freeswitch.org/confluence/display/FREESWITCH/mod_vlc
- https://freeswitch.org/confluence/display/FREESWITCH/mod_shout

Maybe it's easier to create a "gateway script" to read vlc or shout flow
and send it to kaldi ?

What do you think about this new idea ?

The last chance: hack one of theses modules to put audio stream to kaldi...
it's not the good way for my c++ skills ;)
https://freeswitch.org/stash/projects/FS/repos/freeswitch/browse/src/mod/asr_tts

thanks in advance

2018-03-02 11:09 GMT+01:00 Mickael Hubert <mickael at winlux.fr>:

> Hi
> thanks a lot for your answers.
> Do you split media stream ? I want to stream only caller voice for
> exemple. My ASR works better if it recognizes only one stream ;)
> thanks in advance
>
> 2018-03-01 17:24 GMT+01:00 Stefano Favaro <stefano.favaro at edistar.com>:
>
>>
>> Hello, I'm currently using:
>>
>>
>> Freeswitch with mod_unimrcp and the plugin from UniMRCP (
>> http://unimrcp.org/gsr)
>>
>>
>> It connects to Google Speech API for audio transcription in realtime
>> using mrcp.
>>
>>
>> Stefano.
>>
>>
>>
>>
>>
>> ------------------------------
>> *Da: *"Robert Mundkowsky" <rmundkowsky at ets.org>
>> *A: *"FreeSWITCH Users Help" <freeswitch-users at lists.freeswitch.org>
>> *Inviato: *Mercoledì, 28 febbraio 2018 20:17:01
>> *Oggetto: *Re: [Freeswitch-users] Send RTP to external server
>>
>>
>> It is actually fairly common to want to stream audio/video to somewhere
>> to process the data in real time, rather than waiting until recording is
>> finished.
>>
>>
>>
>> For example, if want to convert audio to text (ASR) then you do not want
>> to wait until the conference is over before you start the ASR.  Imagine,
>> your ASR takes 1 minute to convert 1 minute of audio then if a conference
>> is 30 minutes long, you would have to wait another 30 minutes for the ASR
>> to finish before you could do something with the text.
>>
>>
>>
>> I believe you can use gstreamer (https://gstreamer.freedesktop.org/) to
>> handle receiving the RTP from a FreeSWITCH conference.  I think it allows
>> you to sample frames if you want to get frames from video granted I think
>> you are only interested in audio, but I think you still have to develop a
>> daemon that understand SIP/RTP in order to talk to FreeSWITCH.  Another
>> approach might be to create a plugin for the Unimrcp (MRCPv2 server
>> http://www.unimrcp.org/ ) and talk to the FreeSWITCH using their mrcp
>> module and tight that to the conference call.  You might be able to hack
>> the Kaldi plugin for Unimrcp to do what you want.
>>
>>
>>
>> Robert
>>
>>
>>
>> *From:* FreeSWITCH-users [mailto:freeswitch-users-bounc
>> es at lists.freeswitch.org] *On Behalf Of *Tihomir Culjaga
>> *Sent:* Wednesday, February 28, 2018 1:47 PM
>> *To:* FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
>> *Subject:* Re: [Freeswitch-users] Send RTP to external server
>>
>>
>>
>> why do you want to stream... isn't it enough just to rsync the file once
>> the call is finished ?
>>
>>
>>
>> On 28 February 2018 at 16:16, Mickael Hubert <mickael at winlux.fr> wrote:
>>
>> Hi
>> thanks a lot for your answer.
>>
>> But I want to send stream to external server, not record in audio file. i
>> can use record to "capture" the voice, but to stream it, it's more
>> complicated ;)
>>
>> thanks in advance
>>
>>
>>
>> 2018-02-21 0:50 GMT+01:00 Brian West <brian at freeswitch.com>:
>>
>> you can already do this without SIPREC in freeswitch. By setting the
>> RECORD_READ_ONLY or RECORD_WRITE_ONLY variables.
>>
>>
>>
>> /b
>>
>>
>>
>>
>>
>> On Fri, Feb 16, 2018 at 10:33 AM, Mickael Hubert <mickael at winlux.fr>
>> wrote:
>>
>> Hi list,
>> I want to record each call through freeswitch. But i want record only
>> caller (SSRC 1) OR callee (SSRC 2) voice (not both).
>>
>> I read about SIPREC, Jack, etc ... not interesting
>>
>> Do you have a idea for me please ?
>>
>> Thanks in advance
>>
>>
>>
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