[asterisk-bugs] [JIRA] (ASTERISK-26478) codec_opus: Opus transcoding one-way audio issue

[Kevin Harwell (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-26478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=233545#comment-233545 ] 

Kevin Harwell commented on ASTERISK-26478:
------------------------------------------

[~lukeescude] Thanks for the update. I'm glad to hear for the most part you have resolved the one way audio issues. Sounds like there may still be a problem with opus though.

If/When you get a chance to try things out again one thing to check with regards to opus is to make sure the playback rates and bit rates/bandwidths are negotiated correctly and one phone is not sending audio at a higher rate than the receiving phone can handle.

So for instance I was doing some testing with a browser->phone setup (both configured to use opus). The browser was sending audio at a higher bit rate (48000) however the phone was set to a wide bandwidth (with a bit rate of 24000) so there was no audio in one direction since the phone could not handle the higher rate.

If that is the case, some of these settings can be adjusted or "capped" using configuration options. More info about opus configuration options can be found at the following: https://wiki.asterisk.org/wiki/display/AST/Codec+Opus

> codec_opus: Opus transcoding one-way audio issue
> ------------------------------------------------
>
>                 Key: ASTERISK-26478
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-26478
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Codecs/codec_opus
>    Affects Versions: 14.0.2
>         Environment: Centos x64
>            Reporter: Luke Escude
>            Assignee: Unassigned
>            Severity: Minor
>         Attachments: Console-1.rtf, pcap0 3.pcap, PCAP2.pcap
>
>
> Are there any known issues with transcoding with the Opus codec from Digium?
> About 1 in every 4 handsets is having one-way audio problems on Opus, during outbound calls (handset -> opus -> Asterisk 14 -> uLaw -> Trunk)
> It could be the handsets themselves as well, since Grandstream only recently started supporting opus.



--
This message was sent by Atlassian JIRA
(v6.2#6252)