[arm-allstar] NEW: simpleusb driver updates

[C B]

Thank you for the calirification
thank you for all of your work.
Chris

      From: David McGough <kb4fxc at inttek.net>
 To: C B <harvard5362 at yahoo.com> 
Cc: ARM Allstar <arm-allstar at hamvoip.org>
 Sent: Sunday, October 29, 2017 5:09 PM
 Subject: Re: Re: [arm-allstar] NEW: simpleusb driver updates
   

Hi Chris,

This simpleusb.conf "duplex=[0|1]" parameter is different from the 
rpt.conf "duplex=[0|1|2|3|4]" setting.

Yes, now "duplex=1" in simpleusb.conf (which is the default) -should- help 
in all cases---no matter what mode you're running in rpt.conf. I know I've 
noticed improvement on my repeaters, etc.


73, David KB4FXC


On Sun, 29 Oct 2017, C B wrote:

> Hi
> will this have any change and or improvement when using duplex = 2? 
> is the CM1XY used in the URI?
> Thank you for all of your hard work.
> Chris
> 
>      From: David McGough via arm-allstar <arm-allstar at hamvoip.org>
>  To: arm-allstar at hamvoip.org 
> Cc: David McGough <kb4fxc at inttek.net>
>  Sent: Sunday, October 29, 2017 8:43 AM
>  Subject: [arm-allstar] NEW: simpleusb driver updates
>    
> 
> 
> Everyone,
> 
> Working to further improve/reduce audio latency, I've improved how the 
> simpleusb driver sends audio to the CM1XY USB sound device.
> 
> Now, the simpleusb.conf parameter "duplex=[0|1]" is implemented.  
> Previously, this parameter had no effect, it has always only been a
> placeholder. Now, the default configuration is "duplex=1"Â  for all nodes.
> If you wish to continue to use the original code for any reason, set
> "duplex=0".
> 
> With "duplex=1" (the new default) enabled, the simpleusb driver continues
> to send frames of silence to the audio adapter at all times; even when the
> transmitter (PTT) isn't active. This reduces the impact of the variable 
> start-up latency issues which simpleusb has classically exhibited.
> 
> Note that by sending audio frames continuously, the activity LED
> pattern you'll see on the CM1XY device has changed, too.
> 
> This software update is in this morning's release. Please use pacman to 
> update your systems when convenient---admin menu option #1.
> 
> Also, you can check the dynamically updated release notes (which are 
> included on the RPi2/3 in the file: /etc/allstar_version) at this URL:
> 
> https://hamvoip.org/local/allstar_version.php
> 
> 
> Thanks,
> 
> 
> 73, David KB4FXC
> 
> 
> 
> 
> 
> 
> 
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