[Freeswitch-users] suggest best codecs to use with freeswitch for good voice quality ??

Wed Apr 8 08:19:20 MSD 2015

dmitry lysenko  wrote
"Yes, GSM dongle can do AMR, but the I/O (with PC) in L16. So, the best
codec, in this case, will be L16."
this mean i try  rtreleaven's  suggestion  ??
"<rtreleaven at bunnykick.ca> wrote:
for the freeswitch side
<action application="set" data="absolute_codec_string=L16 at 16000h"/>"

?

On Tue, Apr 7, 2015 at 11:33 PM, Dmitry Lysenko <dvl36.ripe.nick at gmail.com>
wrote:

> Yes, GSM dongle can do AMR, but the I/O (with PC) in L16. So, the best
> codec, in this case, will be L16.
>
> 2015-04-07 19:59 GMT+03:00 Russell Treleaven <rtreleaven at bunnykick.ca>:
>
>> Can the GSM dongle do AMR?
>>
>> On Tue, Apr 7, 2015 at 12:42 PM, I put the Who? in Mishehu <
>> mishehu at freeswitch.org> wrote:
>>
>>>  I think that AMR is one of the codecs that does not allow for
>>> transcoding, at least with the in-tree module.  Might require something
>>> additional.
>>>
>>> --
>>> Yossi Neiman
>>>
>>> On 04/07/2015 04:57 AM, Steven Ayre wrote:
>>>
>>>  That's not necessarily the case - GSM is not the only codec used by
>>> mobile networks, there's others such as AMR
>>>
>>> On 4 April 2015 at 19:11, Russell Treleaven <rtreleaven at bunnykick.ca>
>>> wrote:
>>>
>>>> Since one of the legs is GSM the best you can hope for is slightly
>>>> worse than GSM because you are transcoding.
>>>>
>>>>
>>>> On Sat, Apr 4, 2015 at 2:01 PM, Russell Treleaven <
>>>> rtreleaven at bunnykick.ca> wrote:
>>>>
>>>>> for the freeswitch side
>>>>> <action application="set" data="absolute_codec_string=L16 at 16000h"/>
>>>>>
>>>>>  for the asterisk side
>>>>> you will have to figure that out yourself.
>>>>>
>>>>>
>>>>>
>>>>> On Sat, Apr 4, 2015 at 12:40 PM, Shabbir abbasi <
>>>>> shabbirabbasi92 at gmail.com> wrote:
>>>>>
>>>>>>   thank you for reply
>>>>>>  it is freeswitch.conf
>>>>>>  <X-PRE-PROCESS cmd="set"
>>>>>> data="sound_prefix=$${sounds_dir}/en/us/callie"/>
>>>>>> <X-PRE-PROCESS cmd="set" data="default_country=US"/>
>>>>>> <X-PRE-PROCESS cmd="set" data="global_codec_prefs=G7221 at 32000h
>>>>>> ,G7221 at 16000h,G722,PCMU,PCMA,GSM"/>
>>>>>>
>>>>>>  <profile name="freeswitch-sip">
>>>>>>           <gateways>
>>>>>>             <gateway name="asterisk-local">
>>>>>>               <param name="proxy" value="127.0.0.1:5060"/>
>>>>>>               <param name="retry-seconds" value="30"/>
>>>>>>               <param name="caller-id-in-from" value="true"/>
>>>>>>             </gateway>
>>>>>>           </gateways>
>>>>>>
>>>>>>           <domains>
>>>>>>             <domain name="all" alias="true" parse="false"/>
>>>>>>           </domains>
>>>>>>
>>>>>>           <settings>
>>>>>>             <param name="debug" value="1"/>
>>>>>>             <param name="sip-trace" value="no"/>
>>>>>>             <param name="log-auth-failures" value="false"/>
>>>>>>             <param name="forward-unsolicited-mwi-notify"
>>>>>> value="false"/>
>>>>>>             <param name="context" value="asterisk"/>
>>>>>>             <param name="rfc2833-pt" value="101"/>
>>>>>>             <param name="sip-port" value="5050"/>
>>>>>>             <param name="dialplan" value="XML"/>
>>>>>>             <param name="dtmf-type" value="info"/>
>>>>>>             <param name="inbound-codec-prefs"
>>>>>> value="$${global_codec_prefs}"/>
>>>>>>             <param name="outbound-codec-prefs"
>>>>>> value="$${global_codec_prefs}"/>
>>>>>>             <param name="use-rtp-timer" value="true"/>
>>>>>>             <param name="rtp-timer-name" value="soft"/>
>>>>>>             <param name="rtp-timeout-sec" value="300"/>
>>>>>>             <param name="rtp-hold-timeout-sec" value="1800"/>
>>>>>>             <param name="vad" value="none"/>
>>>>>>             <param name="rtp-ip" value="127.0.0.1"/>
>>>>>>             <param name="sip-ip" value="127.0.0.1"/>
>>>>>>             <param name="ext-rtp-ip" value="127.0.0.1"/>
>>>>>>             <param name="ext-sip-ip" value="127.0.0.1"/>
>>>>>>             <param name="inbound-codec-negotiation" value="generous"/>
>>>>>>             <param name="tls" value="false"/>
>>>>>>             <param name="nonce-ttl" value="60"/>
>>>>>>             <param name="auth-calls" value="false"/>
>>>>>>             <param name="auth-all-packets" value="false"/>
>>>>>>             <param name="challenge-realm" value="auto_from"/>
>>>>>>           </settings>
>>>>>>
>>>>>>
>>>>>>  and  here is asterisk  sip.con
>>>>>> disallow=all
>>>>>> allow=ulaw
>>>>>> allow=alaw
>>>>>>
>>>>>>  what i need to change  ??
>>>>>>
>>>>>> On Sat, Apr 4, 2015 at 9:13 PM, Russell Treleaven <
>>>>>> rtreleaven at bunnykick.ca> wrote:
>>>>>>
>>>>>>>  probably the best you can do is limit the number of transcodings
>>>>>>> and/or resamplings
>>>>>>>
>>>>>>>  skype uses silk
>>>>>>>  freeswitch core uses L16
>>>>>>>  sip session uses <your choice>
>>>>>>>  asterisk core uses ?
>>>>>>>  audio is presented to the dongle as ?
>>>>>>>  cellular network uses gsm
>>>>>>>
>>>>>>>  if ? =  L16 then make the sip session use L16
>>>>>>> use the loopback interface so that MTU is not an issue
>>>>>>>
>>>>>>>
>>>>>>>  On Fri, Apr 3, 2015 at 2:50 PM, Shabbir abbasi <
>>>>>>> shabbirabbasi92 at gmail.com> wrote:
>>>>>>>
>>>>>>>>   for this setup
>>>>>>>>  skype   -->    freeswitch(mod_skypopen --> mod_sofia) --->
>>>>>>>> asterisk(chan_sip --> chan_dongle[Huawei E169] )     on same machine
>>>>>>>>
>>>>>>>> suggest best codecs to use with freeswitch  and asterisk  for good
>>>>>>>> voice quality ??
>>>>>>>>
>>>>>>>>
>>>>>>>> _________________________________________________________________________
>>>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>>>> consulting at freeswitch.org
>>>>>>>> http://www.freeswitchsolutions.com
>>>>>>>>
>>>>>>>> Official FreeSWITCH Sites
>>>>>>>> http://www.freeswitch.org
>>>>>>>> http://confluence.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://confluence.freeswitch.org
>>>>>>> http://www.cluecon.com
>>>>>>>
>>>>>>> FreeSWITCH-users mailing list
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>>>>>>> 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://confluence.freeswitch.org
>>>>>> http://www.cluecon.com
>>>>>>
>>>>>> FreeSWITCH-users mailing list
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>>>>>> 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://confluence.freeswitch.org
>>>> http://www.cluecon.com
>>>>
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>>>> http://www.freeswitch.org
>>>>
>>>
>>>
>>>
>>> _________________________________________________________________________
>>> Professional FreeSWITCH Consulting Services: consulting at freeswitch.orghttp://www.freeswitchsolutions.com
>>>
>>> Official FreeSWITCH Siteshttp://www.freeswitch.orghttp://confluence.freeswitch.orghttp://www.cluecon.com
>>>
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>>>
>>>
>>>
>>> _________________________________________________________________________
>>> Professional FreeSWITCH Consulting Services:
>>> consulting at freeswitch.org
>>> http://www.freeswitchsolutions.com
>>>
>>> Official FreeSWITCH Sites
>>> http://www.freeswitch.org
>>> http://confluence.freeswitch.org
>>> http://www.cluecon.com
>>>
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>>>
>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://confluence.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://confluence.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
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> http://www.freeswitch.org
>
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