[Freeswitch-users] Choosing a Codec.

Anthony Minessale anthony.minessale at gmail.com
Wed Dec 23 07:22:26 PST 2009

It's more than highly likely you have some other problem like jitter or a
bad network connection.
Not many people would be able to tell the difference between the sound of an
8k PCM file and the same file encoded to G711 just by listening to it unless
there was a severe problem somewhere.  Since you are behind NAT you are even
more likely to experience drops etc.

Record your files as 8k raw 16 bit PCM to get the best out of the file
playback in FS and look elsewhere for your audio issues.

You can always make sure you are using the latest build of FS to rule out
any temporary issues in the code.

On Wed, Dec 23, 2009 at 8:56 AM, Brian West <brian at freeswitch.org> wrote:

> VMD will force a transcode anyway too.
> /b
> On Dec 23, 2009, at 1:08 AM, Vinuth Madinur wrote:
> > My setup is as follows:
> >
> > FreeSWITCH -> SIP Trunk -> PSTN.
> >
> > From freeswitch, I'm making outbound calls using event socket via the
> "external" profile. Except for the ext_rtp_ip and ext_sip_ip, everything is
> default settings. Using "playback" application, I'm playing a mu-law audio.
> I'm also starting the "vmd" application, so that I can replay the message on
> beep.
> >
> > Thanks for your suggestion on native format. I'll try it.
> >
> > Thanks,
> > Vinuth.
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Anthony Minessale II

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