OPUS codec and optimal settings for "bad" 3G reception.
Hi, I'm looking into a good codec for a client when bad 3G coverage is present. OPUS seems as a good choice. Can anyone recommend settings for this on the FS server side, or should it be done in the client?
Idealy you need to have rtcp or something that can be a channel for client and server so that they both comunicate and could adjust bitrate every time, because when you are in 3g you are in constantly changing enviroment. As it is now almost impossible i recommend you to set to 8khz with fec and jitterbuffer enable in adaptive way. FEC seems to be added in 1.6 but there was some patches for 1.4 as well. 15 сент. 2015 г. 17:28 пользователь "Michael Nielsen" <mic.niel84@gmail.com> написал:
Hi,
I'm looking into a good codec for a client when bad 3G coverage is
present.
OPUS seems as a good choice.
Can anyone recommend settings for this on the FS server side, or should it be done in the client?
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About FEC in the decoder, you can try this patch: https://freeswitch.org/jira/browse/FS-8151 About FEC on the encoder: please try the "keep-fec-enabled" feature, have this set in opus.conf.xml : <param name="keep-fec-enabled" value="1"/> Opus@8000h seems ok so far (if u do transcoding to/from 8000 hz). u can try to increase ptime too . And yes, your client software better have RTCP. Regards, Dragos On 2015-09-16 00:31, Kamil Nigmatullin wrote:
Idealy you need to have rtcp or something that can be a channel for client and server so that they both comunicate and could adjust bitrate every time, because when you are in 3g you are in constantly changing enviroment. As it is now almost impossible i recommend you to set to 8khz with fec and jitterbuffer enable in adaptive way. FEC seems to be added in 1.6 but there was some patches for 1.4 as well.
15 сент. 2015 г. 17:28 пользователь "Michael Nielsen" <mic.niel84@gmail.com> написал:
Hi,
I'm looking into a good codec for a client when bad 3G coverage is
present.
OPUS seems as a good choice.
Can anyone recommend settings for this on the FS server side, or should it be done in the client?
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_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@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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participants (3)
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doancea
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Kamil Nigmatullin
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Michael Nielsen