[Freeswitch-users] Mod_shout using with icecast Big delay

Jorge Núñez jorgefren12 at gmail.com
Fri Aug 16 22:22:15 MSD 2013 

So Can anybody tell any other solution instead of webrtc and icecast to
broadcast a conference in realtime without delay or maybe just a little bit
of delay 1s or 2s?

Thank you very much for your help

Jorge


2013/8/15 Jeff Leung <jleung at v10networks.ca>

> Icecast is known to have a relatively high latency for audio.
>
>
> On Thu, Aug 15, 2013 at 10:34 AM, Anthony Minessale <
> anthony.minessale at gmail.com> wrote:
>
>> enable_file_write_buffering=false
>> stream_prebuffer=0
>>
>> On the leg doing the recording.  It does't stop the iceast server or
>> libshout from buffering it more.
>>
>>
>>
>>
>>
>> On Thu, Aug 15, 2013 at 12:07 PM, Jorge Núñez <jorgefren12 at gmail.com>wrote:
>>
>>> Anthony and just for test how can I reduce the latency? and thanks
>>> Michael for use webrtc Do I need to use Sipml5 or JSSIP o are there any
>>> othe way to use because I was trying to find some information about
>>> mod_html5 but I didn´t find
>>>
>>> thanks
>>>
>>> Jorge
>>>
>>>
>>> 2013/8/15 Michael Jerris <mike at jerris.com>
>>>
>>>> The alternative if you want in sync audio would be to use webrtc
>>>> endpoints to listen.
>>>>
>>>> On Aug 14, 2013, at 7:19 PM, Anthony Minessale <
>>>> anthony.minessale at gmail.com> wrote:
>>>>
>>>> Icecast is not designed for low-latency and realtime audio.  Its
>>>> designed for higher quality reliable audio.  The servers and the client
>>>> libs both use latency and buffering to guarantee this.  There are some
>>>> techniques to reduce the buffering on at least the FS side but then you
>>>> will start getting skips and resets if you miss any packets.
>>>>
>>>> This comes up all the time when people first try doing this.  Either
>>>> you need to just accept the delay since most people will not even know its
>>>> there or use some other method.
>>>>
>>>>
>>>>
>>>>
>>>> On Wed, Aug 14, 2013 at 5:12 PM, Stephen Dame <sdame at 207me.com> wrote:
>>>>
>>>>> Did you restart the freeswitch server after changes to the config
>>>>> files,   I’m not sure 100% if reloadxml resets the conference settings.
>>>>> ****
>>>>>
>>>>> ** **
>>>>>
>>>>> Also I use some flash based players, I think there where client
>>>>> settiings for buffering.   Can you set buffer in HTML tag?****
>>>>>
>>>>> ** **
>>>>>
>>>>> Regards,****
>>>>>
>>>>> Stephen****
>>>>>
>>>>> ** **
>>>>>
>>>>> 207 Technology Group Inc.   1-888-229-9756  skype: Stephen_Dame****
>>>>>
>>>>> ** **
>>>>>
>>>>> *From:* freeswitch-users-bounces at lists.freeswitch.org [mailto:
>>>>> freeswitch-users-bounces at lists.freeswitch.org] *On Behalf Of *Jorge
>>>>> Núñez
>>>>> *Sent:* Wednesday, August 14, 2013 4:18 PM
>>>>>
>>>>> *To:* FreeSWITCH Users Help
>>>>> *Subject:* Re: [Freeswitch-users] Mod_shout using with icecast Big
>>>>> delay****
>>>>>
>>>>> ** **
>>>>>
>>>>> Hi thanks, I set your configuration but nothing changed, I reduced the
>>>>> burst size and it takes me just 11s and also I tried with 8k, 16k and 32k
>>>>> and nothing change****
>>>>>
>>>>> ** **
>>>>>
>>>>>     <limits>****
>>>>>
>>>>>         <clients>100</clients>****
>>>>>
>>>>>         <sources>10</sources>****
>>>>>
>>>>>         <threadpool>5</threadpool>****
>>>>>
>>>>>         <queue-size>524288</queue-size>****
>>>>>
>>>>>         <!-- <queue-size>524288</queue-size> -->****
>>>>>
>>>>>         <client-timeout>30</client-timeout>****
>>>>>
>>>>>         <header-timeout>15</header-timeout>****
>>>>>
>>>>>         <source-timeout>10</source-timeout>****
>>>>>
>>>>>         <!-- If enabled, this will provide a burst of data when a
>>>>> client ****
>>>>>
>>>>>              first connects, thereby significantly reducing the
>>>>> startup ****
>>>>>
>>>>>              time for listeners that do substantial buffering. However,
>>>>> ****
>>>>>
>>>>>              it also significantly increases latency between the source
>>>>> ****
>>>>>
>>>>>              client and listening client.  For low-latency setups, you
>>>>> ****
>>>>>
>>>>>              might want to disable this. -->****
>>>>>
>>>>>         <burst-on-connect>0</burst-on-connect>****
>>>>>
>>>>>         <!-- same as burst-on-connect, but this allows for being more*
>>>>> ***
>>>>>
>>>>>              specific on how much to burst. Most people won't need to*
>>>>> ***
>>>>>
>>>>>              change from the default 64k. Applies to all mountpoints *
>>>>> ***
>>>>>
>>>>> ** **
>>>>>
>>>>>  -->****
>>>>>
>>>>>         <burst-size>4096</burst-size>****
>>>>>
>>>>>     </limits>****
>>>>>
>>>>> ** **
>>>>>
>>>>> Regards****
>>>>>
>>>>> ** **
>>>>>
>>>>> Jorge****
>>>>>
>>>>> ** **
>>>>>
>>>>> ** **
>>>>>
>>>>> 2013/8/14 Stephen Dame <sdame at 207me.com>****
>>>>>
>>>>> Jorge, ****
>>>>>
>>>>>  ****
>>>>>
>>>>> Play around with the burst size and queue size…  here is my xml config
>>>>> around 3-4 second delay from 16k freeswitch conference. ****
>>>>>
>>>>> To small a buffer and the players disconnect… Im also running icecast
>>>>> on same server.****
>>>>>
>>>>>  ****
>>>>>
>>>>> <icecast>****
>>>>>
>>>>>     <limits>****
>>>>>
>>>>>         <clients>100</clients>****
>>>>>
>>>>>         <sources>10</sources>****
>>>>>
>>>>>         <threadpool>5</threadpool>****
>>>>>
>>>>>         <queue-size>524288</queue-size>****
>>>>>
>>>>>         <client-timeout>30</client-timeout>****
>>>>>
>>>>>         <header-timeout>15</header-timeout>****
>>>>>
>>>>>         <source-timeout>10</source-timeout>****
>>>>>
>>>>>         <burst-on-connect>1</burst-on-connect>****
>>>>>
>>>>>         <!-- same as burst-on-connect, but this allows for being more*
>>>>> ***
>>>>>
>>>>>              specific on how much to burst. Most people won't need to*
>>>>> ***
>>>>>
>>>>>              change from the default 64k. Applies to all mountpoints
>>>>> -->****
>>>>>
>>>>>         <burst-size>65535</burst-size>****
>>>>>
>>>>>     </limits>****
>>>>>
>>>>>  ****
>>>>>
>>>>> Regards,****
>>>>>
>>>>> Stephen****
>>>>>
>>>>>  ****
>>>>>
>>>>> *From:* freeswitch-users-bounces at lists.freeswitch.org [mailto:
>>>>> freeswitch-users-bounces at lists.freeswitch.org] *On Behalf Of *Ken Rice
>>>>> *Sent:* Wednesday, August 14, 2013 12:35 PM
>>>>> *To:* FreeSWITCH Users Help
>>>>> *Subject:* Re: [Freeswitch-users] Mod_shout using with icecast Big
>>>>> delay****
>>>>>
>>>>>  ****
>>>>>
>>>>> You have to keep in mind that icecast itself has a fair bit of
>>>>> buffering involved with it and theres not a lot you can do about that
>>>>>
>>>>>
>>>>> On 8/14/13 11:30 AM, "Jorge Núñez" <jorgefren12 at gmail.com> wrote:****
>>>>>
>>>>> Hi I am using mod_shout to send a conference call to icecast and hear
>>>>> it from a tag audio in html5 in realtime, but it has a big delay like 12
>>>>> seconds. How can I reduce the latency of the audio sent from freeswitch or
>>>>> what can I do to improve this.
>>>>>
>>>>> Regards
>>>>>
>>>>> Jorge****
>>>>> ------------------------------
>>>>>
>>>>>
>>>>> _________________________________________________________________________
>>>>> Professional FreeSWITCH Consulting Services:
>>>>> consulting at freeswitch.org
>>>>> http://www.freeswitchsolutions.com
>>>>>
>>>>> 
>>>>> 
>>>>>
>>>>> Official FreeSWITCH Sites
>>>>> http://www.freeswitch.org
>>>>> http://wiki.freeswitch.org
>>>>> http://www.cluecon.com
>>>>>
>>>>> FreeSWITCH-users mailing list
>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>> UNSUBSCRIBE:
>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>> http://www.freeswitch.org****
>>>>>
>>>>>
>>>>> --
>>>>> Ken
>>>>> *http://www.FreeSWITCH.org <http://www.freeswitch.org/>
>>>>> http://www.ClueCon.com <http://www.cluecon.com/>
>>>>> http://www.OSTAG.org <http://www.ostag.org/>
>>>>> *irc.freenode.net #freeswitch****
>>>>>
>>>>>
>>>>>
>>>>> _________________________________________________________________________
>>>>> Professional FreeSWITCH Consulting Services:
>>>>> consulting at freeswitch.org
>>>>> http://www.freeswitchsolutions.com
>>>>>
>>>>> 
>>>>> 
>>>>>
>>>>> Official FreeSWITCH Sites
>>>>> http://www.freeswitch.org
>>>>> http://wiki.freeswitch.org
>>>>> http://www.cluecon.com
>>>>>
>>>>> FreeSWITCH-users mailing list
>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>> UNSUBSCRIBE:
>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>> http://www.freeswitch.org****
>>>>>
>>>>> ** **
>>>>>
>>>>>
>>>>> _________________________________________________________________________
>>>>> Professional FreeSWITCH Consulting Services:
>>>>> consulting at freeswitch.org
>>>>> http://www.freeswitchsolutions.com
>>>>>
>>>>> 
>>>>> 
>>>>>
>>>>> Official FreeSWITCH Sites
>>>>> http://www.freeswitch.org
>>>>> http://wiki.freeswitch.org
>>>>> http://www.cluecon.com
>>>>>
>>>>> FreeSWITCH-users mailing list
>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>> UNSUBSCRIBE:
>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>> http://www.freeswitch.org
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Anthony Minessale II
>>>>
>>>> FreeSWITCH http://www.freeswitch.org/
>>>> ClueCon http://www.cluecon.com/
>>>> Twitter: http://twitter.com/FreeSWITCH_wire
>>>>
>>>> AIM: anthm
>>>> MSN:anthony_minessale at hotmail.com
>>>> GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
>>>> IRC: irc.freenode.net #freeswitch
>>>>
>>>> FreeSWITCH Developer Conference
>>>> sip:888 at conference.freeswitch.org
>>>> googletalk:conf+888 at conference.freeswitch.org
>>>> pstn:+19193869900
>>>>
>>>> _________________________________________________________________________
>>>> Professional FreeSWITCH Consulting Services:
>>>> consulting at freeswitch.org
>>>> http://www.freeswitchsolutions.com
>>>>
>>>> 
>>>> 
>>>>
>>>> Official FreeSWITCH Sites
>>>> http://www.freeswitch.org
>>>> http://wiki.freeswitch.org
>>>> http://www.cluecon.com
>>>>
>>>> FreeSWITCH-users mailing list
>>>> FreeSWITCH-users at lists.freeswitch.org
>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>> UNSUBSCRIBE:
>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>> http://www.freeswitch.org
>>>>
>>>>
>>>>
>>>>
>>>> _________________________________________________________________________
>>>> Professional FreeSWITCH Consulting Services:
>>>> consulting at freeswitch.org
>>>> http://www.freeswitchsolutions.com
>>>>
>>>> 
>>>> 
>>>>
>>>> Official FreeSWITCH Sites
>>>> http://www.freeswitch.org
>>>> http://wiki.freeswitch.org
>>>> http://www.cluecon.com
>>>>
>>>> FreeSWITCH-users mailing list
>>>> FreeSWITCH-users at lists.freeswitch.org
>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>> UNSUBSCRIBE:
>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>> http://www.freeswitch.org
>>>>
>>>>
>>>
>>> _________________________________________________________________________
>>> Professional FreeSWITCH Consulting Services:
>>> consulting at freeswitch.org
>>> http://www.freeswitchsolutions.com
>>>
>>> 
>>> 
>>>
>>> Official FreeSWITCH Sites
>>> http://www.freeswitch.org
>>> http://wiki.freeswitch.org
>>> http://www.cluecon.com
>>>
>>> FreeSWITCH-users mailing list
>>> FreeSWITCH-users at lists.freeswitch.org
>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>>> http://www.freeswitch.org
>>>
>>>
>>
>>
>> --
>> Anthony Minessale II
>>
>> FreeSWITCH http://www.freeswitch.org/
>> ClueCon http://www.cluecon.com/
>> Twitter: http://twitter.com/FreeSWITCH_wire
>>
>> AIM: anthm
>> MSN:anthony_minessale at hotmail.com
>> GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
>> IRC: irc.freenode.net #freeswitch
>>
>> FreeSWITCH Developer Conference
>> sip:888 at conference.freeswitch.org
>> googletalk:conf+888 at conference.freeswitch.org
>> pstn:+19193869900
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://wiki.freeswitch.org
>> http://www.cluecon.com
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> http://www.freeswitch.org
>>
>>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
>
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