[App_rpt-users] temporarily disable echolink

[Buddy Brannan]

I’d agree with you, except that it *only* happens with Echolink connections, and I have a pretty consistent 5mbps upstream speed.

On Jun 23, 2014, at 9:27 PM, Brett Friermood <brett.friermood at gmail.com> wrote:

> On Mon, Jun 23, 2014 at 12:56 PM, Buddy Brannan <buddy at brannan.name> wrote:
>> ...
>> BTW, Echolink stations have told me that my node isn’t the only one that
>> does the following thing, so I wonder if anyone knows why, or even better,
>> knows how to fix it. If I have more than, say, 2 or 3 Echolink stations
>> connected, Echolink starts sounding “watery”, or has audio dropouts, or
>> anyway, outgoing audio suffers quite a lot. All downstream audio, that is to
>> say, audio coming into the node and being transmitted out the All Star
>> radio, always sounds fantastic. Asterisk connections sound great both ways.
>> Echolink, however, starts sounding awful for anything coming out of, though
>> not going into, the All Star/Echolink connection. So if you’re listening to
>> my node on Echolink, you’ll hear pretty rotten upstream audio. If you listen
>> locally to all other stations, everything sounds beautiful. My suspicion is
>> some transcoding issue, but I wonder if anyone else has a clue about this?
>> Or am I even explaining it in a way that makes sense?
> 
> Sounds like a bandwidth issue to me. Unless you're on a symmetric
> connection, most consumer connections are asymmetric with a much
> slower upload speed than download.
> 
> If I'm not mistaken all VOIP connections are UDP so any packet
> collisions cause those packets to never arrive at the destination.
> This would explain why the inbound Echolink connections sound fine to
> you, even when there are many, but the outbound connections don't. Too
> much data trying to use the limited bandwidth causing dropped packets
> and missing audio.
> 
> I'm not intimately familiar with the inner workings of AllStar, but I
> believe the fact that AllStar functions well along side the flakey
> Echolink connections stems from using IAX for the inter-Asterisk
> connections.
> 
> I'm sure someone will correct me if I'm too far off.
> 
> Brett KQ9N