[asterisk-bugs] [JIRA] (ASTERISK-24589) Inefficient Translation from g722 to silk16 via slin

Sean Bright (JIRA) noreply at issues.asterisk.org
Wed May 24 13:44:58 CDT 2017


     [ https://issues.asterisk.org/jira/browse/ASTERISK-24589?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Bright closed ASTERISK-24589.
----------------------------------

    Resolution: Cannot Reproduce

As of Asterisk 13.15, this is what I am seeing:

{noformat}
*CLI> core show translation paths g722
        g722:16000       To silk:16000      : (g722 at 16000)->(slin at 16000)->(silk at 16000)
{noformat}

And:

{noformat}
*CLI> core show translation paths silk 16000
        silk:16000       To g722:16000      : (silk at 16000)->(slin at 16000)->(g722 at 16000)
{noformat}

So this does not appear to be a problem in the supported versions of Asterisk. Please re-open if you are able to reproduce on Asterisk 13 or newer.

> Inefficient Translation from g722 to silk16 via slin
> ----------------------------------------------------
>
>                 Key: ASTERISK-24589
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-24589
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Codecs/codec_g722
>    Affects Versions: 11.13.0
>         Environment: Linux
>            Reporter: Daniel Ammann
>            Severity: Minor
>
> Translation path between silk codec and g722 reduces quality one-way.
> core show translation paths for g722 and silk16 show the following:
> {noformat}
> g722       To silk16    : (g722)->(slin)->(silk8|silk12|silk16|silk24)
> silk16     To g722      : (silk8|silk12|silk16|silk24)->(slin16)->(g722)
> {noformat}
> So one way is going via slin16 (good), but coming from g722 to silk16 is going via slin, which means a reduction of bandwidth and hence a reduction in audio quality. 
> According to ASTERISK-15637, this should not happen but it does



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