[arm-allstar] Q-size

[David McGough]

Hi Ken,

For the rxondelay parameter, once the hardware COS becomes active, the
channel driver simply starts counting 20mS audio frames, until the count
is greater than or equal to ( ">=" ) the value of rxondelay. Once the
number of frames is >= to rxondelay, the channel_driver asserts the
"internal" COS signaling, which gets passed to the app_rpt module.  Any RX
audio during this window is effectively discarded.

73, David KB4FXC


On Sat, 18 Feb 2017, Ken wrote:

> Thanks. 
> 
> One other question with regard to rxondelay (the delay of the "carrierfrom"
> digital signal): does that have any connection with the queuesize parameter?
> Or is all the audio during the rxondelay period lost/ignored?  In other
> words, does the queue start filling when the rxondelay times out, or does it
> start filling when the "carrierfrom" signal is first received ? In the
> latter case, I suppose the queue needs to  be bigger than the rxondelay
> (when rxondelay is longer than rxaudiodelay).
> 
> Ken
> KE2N
>  
> 
> -----Original Message-----
> From: David McGough [mailto:kb4fxc at inttek.net] 
> Sent: Friday, February 17, 2017 9:31 PM
> To: "Ken via arm-allstar" <arm-allstar at hamvoip.org>
> Cc: Ken <ke2n at cs.com>
> Subject: Re: [arm-allstar] Q-size
> 
> 
> Hi Ken,
> 
> The queuesize= parameter sets the maximum number of 20mS audio frames
> allowed to be buffered at any given time in the channel driver transmit
> audio stream (audio written to the CM108/119 device).
> 
> There is interaction between the queuesize parameter and the rxaudiodelay
> parameter---typically queuesize will be a little larger than rxaudiodelay.
> 
> The default value for queuesize is currently 8. And, this value may be
> automatically adjusted upward by simpleusb-tune-menu when the rxaudiodelay
> value is increased.
> 
> 
> 73, David KB4FXC
> 
> 
> 
> On Fri, 17 Feb 2017, "Ken via arm-allstar" wrote:
> 
> > What is the meaning of the "queuesize=" parameter in simpleusb.conf?
> > 
> > Is it related to other parameters in any way?
> > 
> > Thanks
> > 
> > Ken
> > 
> > KE2N
> > 
> >  
> > 
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> > 
> 
> 
>