[arm-allstar] excessive audio delay problem

[LaRoy McCann]

Yeah, you learn to pause before un-keying.
It is worse sometimes than others.

I have tried real hard to make it do that on the bbb and it has not done it.
I was wrong on the radio on the bbb.  At one time (pre lightening 
strike)I had a Master II with a cat 1000.  Right now it is not my 80's 
hamtronics exciter with the latest synthesized receiver on the bbb.

I wonder if different radios introduce different delays.  I hope to get 
a chance this week to replace the bbb with a Pi2 and we'll see what 
difference that makes.

Thanks for the info.

LaRoy McCann, K5TW


On 4/20/2015 1:19 PM, Doug Crompton wrote:
> LaRoy,
>
>    The problem you are seeing has been a problem in Allstar for years. 
> It tends to be worse on a slower processor like the BBB or RPi2. We 
> are currently working on a fix which will benefit all Allstar users. 
> However for right now there is no cure. Setting rxaudiodelay to 
> eliminate squelch tail in simpleusb.conf would make it worse as it 
> would add to the delay. It is variable meaning at times it is almost 
> lockstep and at other times several hundred miliseconds or more delay. 
> Also depending on the receiving radios recovery time it may be better 
> or worse. Using PL usually helps it as it slows down RX recovery time. 
> Hang in there we will have a fix in the future. This is not a problem 
> on a simplex node.
>
> For those that have not experience this what you hear is a last 
> syllable of your transmission when you release the mike. It can be 
> annoying but is not a show stopper.
>
> *73 Doug
> WA3DSP
> http://www.crompton.com/hamradio*
>
>
> > Date: Mon, 20 Apr 2015 12:38:54 -0500
> > From: lmccann at dtisp.com
> > To: arm-allstar at hamvoip.org
> > Subject: [arm-allstar] excessive audio delay problem
> >
> > I have a Pi2 running on a GE Master Executive II repeater.
> >
> > The problem I am seeing is that if I un-key my mobile too quickly, I
> > will hear the last several words that I just spoke being transmitted
> > back from the repeater. Is this board just this slow or is there some
> > audio delay setting somewhere I am missing.
> >
> > I have a bbb running on a GE Master II and it works fine. I'm going to
> > try a Pi2 on the Master II to see if it is in the controller but wanted
> > to ask here to see if anyone has experienced the same issue.
> >
> > LaRoy McCann, K5TW
> >
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> >
> > Visit the BBB web page - 
> http://www.crompton.com/hamradio/BeagleBoneBlackAllstar/
> >
>
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