Your issue does not have anything to do with L16 per se, and you cannot disable it for mod_conference. Everything is decoded into L16 / encoded from L16, like all audio codecs do.
A conference is more CPU intensive than a bridge.
Perhaps 48000, from uuid_dump:
variable_rtp_use_codec_rate: 48000
Regards.
What rate is your conference running at?
Hey all,
I’m trying to transfer my ivr system from bridge to conference for more function. The simple conference ivr likes:
session:execute("pre_answer")
session:execute("conference_set_auto_outcall", "user/" .. args.call_user)
session:execute("conference", "testroom@default")
My FreeSWITCH server is configured to accept only opus for audio codec, and it worked well on bridge mode. The uuid_dump showed:
variable_rtp_use_codec_string: OPUS,H264,H263-1998,VP8
variable_rtp_use_codec_name: opus
variable_rtp_use_codec_fmtp: useinbandfec%3D1
variable_rtp_use_codec_rate: 48000
variable_rtp_use_codec_ptime: 20
variable_rtp_use_codec_channels: 1
variable_rtp_last_audio_codec_string: opus%4048000h%4020i%401c
variable_original_read_codec: opus
variable_write_codec: opus
variable_read_codec: opus
But after I modified my ivr into conference, the read_codec turned into L16. Uuid_dump showed:
variable_rtp_use_codec_string: OPUS,H264,H263-1998,VP8
variable_rtp_use_codec_name: opus
variable_rtp_use_codec_fmtp: useinbandfec%3D1
variable_rtp_use_codec_rate: 48000
variable_rtp_use_codec_ptime: 20
variable_rtp_use_codec_channels: 1
variable_rtp_last_audio_codec_string: opus%4048000h%4020i%401c
variable_original_read_codec: opus
variable_write_codec: opus
Both tests are based on Linphone offical app.
During test, the audio quality has a significant loss on conference mode compared with bridge, perhaps due to L16 codec.
Is there any solutions for this situation? I wonder if I can disable L16 on my server, or force the codec to opus in conference.
Any suggestion would be appreciated.
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_________________________________________________________________________
The FreeSWITCH project is sponsored by SignalWire
https://signalwire.comEnhance your FreeSWITCH install with disruptive priced SMS and PSTN services.
Build your next product on our scalable cloud platform.
Join our online community to chat in real time
https://signalwire.communityProfessional FreeSWITCH Services
sales@freeswitch.comhttps://freeswitch.com
Official FreeSWITCH Sites
https://freeswitch.com/oss
https://freeswitch.org/confluence
https://cluecon.com
FreeSWITCH-users mailing list
FreeSWITCH-users@lists.freeswitch.org
http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
https://freeswitch.com