[App_rpt-users] on board audio

[David KE6UPI]

I like great audio quality that's way I stopped using Echolink (with a
sound card) and went with Allstar. I have Echolink enabled on my Allstar
but dislike must Echolink connection because of the poor audio quality and
I will disconnect them quickly. I have also disconnected Allstar (nodes and
web transceiver) with poor audio. So I think Allstar should have some kind
of audio quality polices and standards.


ulaw at what 64kb/s v GSM 13kb/s over DSL or higher. Most internet is
unlimited anymore at high speeds unless your using a cell carrier. Does
anyone use QOS on there router?

Anyways Audio Quality is always better.

David

On Mon, Dec 26, 2011 at 6:12 AM, Ken <ke2n at cs.com> wrote:

> Hmmm
>
> Well - everybody using the Web Transceiver (and iaxRpt) is using on-board
> audio aren't they?
>
> I have heard some very nice web transceiver audio (and some crappy audio).
> A lot has to do with the microphone being used - and of course the level
> must be set right.
>
> The reason Echolink generally sounds like a bad cell phone call is that
> they
> use the same codec - GSM whereas Asterisk (including the web transceiver)
> uses ulaw - or at least you can configure it for that.
> see
> http://ohnosec.org/drupal/node/80
>
> On top of that, the Echolink coding is converted from GSM to whatever you
> are using on Asterisk between nodes (ulaw or g726). Passing a voice through
> two different coding schemes will do double-damage to it.
>
> ulaw provide a much nicer sound at the expense of more bandwidth - more
> than
> twice the bandwidth of GSM. But over a standard internet connection, that
> is
> rarely an issue these days.
>
> 73
>
> Ken
>
>
> > -----Original Message-----
> > From: app_rpt-users-bounces at ohnosec.org [mailto:app_rpt-users-
> > bounces at ohnosec.org] On Behalf Of Bob Brown - WØNQX
> > Sent: Monday, December 26, 2011 8:34 AM
> > To: app_rpt-users at ohnosec.org
> > Subject: Re: [App_rpt-users] Limey Linux on a HP T5630 Thin Client
> >
> > Hence the reason why we use the the Allstar method of VOIP and the USB
> > device for audio ,
> >
> > Do you really pay attention to how a lot of the Echolink stations
> > sound?
> >
> > most use on-board audio , and it sucks, don't get me wrong there are
> > some fine sounding Echolink
> >
> > systems out there,  that is because they used a service monitor and set
> > it up right.
> >
> > But most use the "By Ear Method" and on-board audio they are all over
> > the place.
> >
> >
>
>
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