[App_rpt-users] Simplex node

[Matthew Pitts]

I would have thought it was evident from the list it was posted on, personally. DSP tends to work better on a more powerful processor than what either the Raspberry Pi 2 or BeagleBone Black have.

Matthew Pitts
N8OHU 

On March 27, 2015 12:46:33 PM EDT, Jeff Carrier <k0jsc.jeff at gmail.com> wrote:
>I would agree with Kevin.  Every node I run is running DSP (with the
>exception of the RTCM's) and they sound amazing.  From time to time it
>hear
>a "hiccup" in TX CTCSS mostly when monitoring with a motorola but thats
>it.  The quality and fidelity is absolutely amazing and most of my
>users
>rave about it.
>
>
>de K0JSC
>
>On Fri, Mar 27, 2015 at 10:20 AM, Kevin Custer <kuggie at kuggie.com>
>wrote:
>
>>  On 3/27/2015 9:55 AM, Doug Crompton wrote:
>>
>> ------------snip-------------
>> Although there has been a slight improvement in usbradio in the
>latest svn
>> it still does not have the exceptionally clean audio that simpleusb
>does.
>>
>>
>>
>> *73 Doug WA3DSP http://www.crompton.com/hamradio
>> <http://www.crompton.com/hamradio>*
>>
>>
>> Doug,
>>
>> I have seen this statement from you many times.  I have about 50
>> installations of usbradio where I don't experience these issues you
>claim.
>> Will you please quantify your statement as to whether or not the
>issues you
>> claim are for the BBB release, or any ACID release - and also if it
>> pertains to only the BBB or any computer platform.
>>
>> I have baseline performance specifications using usbradio and PC
>> hardware.  While the performance does change slightly due to the
>exact
>> radio adapter device, the overall response and distortion
>specifications
>> are very consistent when using G.722 -u-law.  My performance
>specifications
>> show that any distortions or response issues contributed directly by
>> app_rpt, any channel driver, or the radio interface are well below
>> detection by the human ear.  In fact, I can guarantee you that more
>> distortion is generally experienced when running simpleusb audio
>through
>> any radio.  In other words, there is more distortion and response
>issues
>> because of the radio then from this application and its supporting
>hardware
>> in usbradio.
>>
>> I'll apologize that I had to hijack this thread from the arm-allstar
>email
>> group and re-post it here - because I'm no longer allowed to
>participate in
>> your group directly.
>>
>> As Allan Crites would say - "Your turn"...
>>
>> Kevin Custer - W3KKC
>>
>>
>>
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>
>
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