[App_rpt-users] Distorted audio - no explanation

Sun Jun 24 11:33:12 UTC 2012

My system began having some latency issues (that you could see by monitoring
jitterbuffer) when I connected a F.O. media converter elsewhere on the same
LAN.  The problems went away when I replaced the device with another one.
Apparently the first device was flakey and interfered with local internode
comms in some way.

Did  you make any changes to your LAN or could some other device on it have
failed?

Ken

From: app_rpt-users-bounces at ohnosec.org
[mailto:app_rpt-users-bounces at ohnosec.org] On Behalf Of (KP4TR)Ramon
Gonzalez
Sent: Saturday, June 23, 2012 11:28 PM
To: 'app_rpt mailing list'
Subject: Re: [App_rpt-users] Distorted audio - no explanation

I am almost 98% sure my problem is related to the IAX jitterbuffer feature

The reason I say this is because it happened suddenly, and it was occurring
on 2 separate servers within the same network. Also the Remoterig device
that allows me to remote control/use a radio uses SIP and has similar
features as Allstar/Asterisk that I adjust based on bandwidth.

Now I need to understand why this has changed and how to solve it. My
Allstar node(s) are currently unusable because I sound with lots of packet
loss. But I can hear everyone well, and the echolink connection via Allstar
sounds fine.

On 6/23/2012 12:31 PM, Alan Adamson wrote:

Ok, I *want* video!!! Doesn't allstar support that already? :)..

Alan

From: app_rpt-users-bounces at ohnosec.org
[mailto:app_rpt-users-bounces at ohnosec.org] On Behalf Of Jim Duuuude
Sent: Saturday, June 23, 2012 11:58 AM
To: kp4tr.ramon at gmail.com
Cc: app_rpt mailing list
Subject: Re: [App_rpt-users] Distorted audio - no explanation

Well, maybe we should get together, bring up a connection, and swap some
tone.

Please (off list, of course), send me your phone number and login info to
your
system (so that I can see it from both ends while we are testing).

Time-wise today things are not looking good. It's definitely a majorly
serious skater day.
My friend and I are going to Westchester and also check out the old (rather
bowly)
park at Venice. 

So if I get back soon enough (keeping in mind the time difference there) I
will call.
However, realistically, we went to bed at about 0200 our time last night
(er, this morning
I guess).

Jim

  _____  

Date: Sat, 23 Jun 2012 11:06:24 -0400
From: kp4tr.ramon at gmail.com
To: telesistant at hotmail.com
CC: app_rpt-users at ohnosec.org
Subject: Re: [App_rpt-users] Distorted audio - no explanation

Yes, audio levels are set perfectly. Believe me, I am totally perplexed as
to what is causing this as it just happened out of nowhere.

I can connect from one node to another and audio sound great both ways. It's
only when I connect outside my network using Allstar.
If I use echolink from the one node that has it configured, to the node in
Chicago I'm testing with, audio sounds great. Same hardware.

It is not an audio level setting problem. It is not a usbradio option
setting, as I use 2 entirely different radios and both have same situation.
It is not a server setting, as I have tested on 2 separate servers, and same
problem.
I rebooted both servers several times. No change.

The only common thing is my network and ISP. Tested with my IRLP node, all
is ok. Tested bandwidth, everything looks good (average 40MBPS up/ 5MBPS
down).

On 6/23/2012 4:51 AM, Jim Duuuude wrote:

have you set your audio levels to the standard app_rpt/Allstar TLP?

Jim WB6NIL

  _____  

Date: Sat, 23 Jun 2012 03:04:36 -0400
From: kp4tr.ramon at gmail.com
To: app_rpt-users at ohnosec.org
Subject: [App_rpt-users] Distorted audio - no explanation

Hello,

I have an interesting situation. I have been using Allstar for over a month
discovering its capabilities. Tonite a friend  on node 28679 tells me my
audio is distorted. Im puzzled because I haven't changed any settings on my
node in a few days, although I did setup a new server that will go next week
to Puerto Rico.

So I turn on a remoterig radio in Chicago (independent of Allstar) to listen
to myself, and indeed my audio sounds awful. So I check for all possible
causes, but nothing changes. I switched radios, power supplies, moved cables
around, but problem continues. I even reset my network and changed switch.
Yet I decided to use echolink to connect to same exact hardware/URI FOB etc,
and audio sounds perfect. I thought it was my friends radio, but I connected
his radio to the WINS network during a net, and audio was fine.

So my question is this. My 2 nodes on same server can connect to each other
(28532 -> 28689), audio sounds great. I connect to node in Chicago, and
audio is awful. I use echolink with same exact hardware on both ends, audio
is perfect. So it is not a hardware or audio setting problem. It seems to be
network and/or related to VOIP audio. I have yet to test with someone else
other then KP4EOP.

I even tested with the new server I am setting up, and it also has same
issues. Even changed ports. Anyone seen this happen?

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