[asterisk-users] cli command show codecs

[RSCL Mumbai]

Thx @Danny

I am feeling a bit lost here...

We are using G711-aLaw for all our calls (endpoints) and I would like
to align everything to this codec.

I have an MOH file -- a custom wav file. How do I check its codec format ?

And if its not G711-aLaw, how do I convert it to G711-aLaw.

Thank you.
Sans





On Thu, Sep 1, 2011 at 6:35 PM, Danny Nicholas <danny at debsinc.com> wrote:
> Maybe this will be better than my first answer – Audio files do indeed have
> codec formats.   If you are in a particular codec (say G729),
> Playback/Background and MOH will search for files that match the codec
> format first, then transcode WAV/GSM/whatever you have to that format if it
> isn’t found.  Ideally, you want to have a copy of each codec you can play
> for all sounds and MOH.  Each of the “canned sounds” comes in each codec
> format (you pick the ones you want when you do make menuselect).
>
>
>
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of RSCL Mumbai
> Sent: Thursday, September 01, 2011 5:35 AM
>
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [asterisk-users] cli command show codecs
>
>
>
> Hi,
>
> Does audio files have codec formats? I simply convert all my audios (MOH,
> accouncements) to .wav format, 16bit, 11kHz (I believe this is the best
> format for asterisk).
> I am new to this and may be incorrect.
>
> Going forward,
> (a) How can I check the codec format of my announcements, MOH ?
> (b) How can I record/convert announcements, MoH etc to a particular format ?
>
> I believe its a good idea to prevent transcoding and save CPU overheads.
>
> Thx
> Sans
>
>
> On Thu, Sep 1, 2011 at 11:39 AM, Bruce B <bruceb444 at gmail.com> wrote:
>
> if you see leg-A as ulaw and leg-B as g729 then it's trans-coding. If your
> IVR announcement is not recorded in g729 and you see g729 on the channel
> when you call into IVR then it's transcoding as well.
>
>
>
> On Wed, Aug 31, 2011 at 5:50 PM, Eric Wieling <EWieling at nyigc.com> wrote:
>
> Assuming SIP "sip show channels" will show you which codec is used for each
> call leg.  However it does not track transcoding.
>
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of RSCL Mumbai
>
> Sent: Wednesday, August 31, 2011 2:45 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
>
> Subject: Re: [asterisk-users] cli command show codecs
>
> asterisk -rx "core show channels verbose" does not provide transcoding
> details.
>
> Unless I have missed something.
>
> Sans
>
>
>
> On Wed, Aug 31, 2011 at 10:34 PM, Danny Nicholas <danny at debsinc.com> wrote:
>
>
>        Core show channels verbose is probably your best bet.  I think the
> answer also depends on your * version.
>
>
>
>        From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of RSCL Mumbai
>        Sent: Wednesday, August 31, 2011 10:44 AM
>        To: Asterisk Users Mailing List - Non-Commercial Discussion
>        Subject: [asterisk-users] cli command show codecs
>
>
>
>        Hi,
>
>        Is there a CLI command which will tell me the codec used for active
> calls and if transcoding is happening ?
>
>        Thx
>        Sans
>
>
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