[Freeswitch-users] Mod_shout using with icecast Big delay

Anthony Minessale anthony.minessale at gmail.com
Thu Aug 15 21:34:55 MSD 2013 

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
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>>> 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
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googletalk:conf+888 at conference.freeswitch.org
pstn:+19193869900
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