On Nov 1, 2015, at 3:50 PM, David McGough <kb4fxc@inttek.net> wrote:
Hi Guys,
I agree 100% that personal attacks only start flame wars and don't solve
any problems.
However, I do agree with Fred. For those who haven't heard the difference
between simpleusb and usbradio, I suggest a simple test with a stock USB
sound FOB and a computer audio headset and mic combo....Put the USB FOB in
full duplex mode and talk to yourself. While I realize this is an
unscientific test, the difference between the two channel drivers is
immediately obvious and striking!
While many hams out there (including myself) do have great -radio- test
equipment, most lack the equipment to carefully check audio dynamic range,
frequency response and other audio-specific parameters.
Incidentally, for comparison purposes, another interesting experiment is
to try this same headset test with one of the commercially available
analog controllers out there...I've tried that, too, and as expected, the
performance is even better, substantially better....But, I digress.
If anyone wants to try this and doesn't know how to proceed, I'll post a
link to my exact test setup, if interested.
Anyhow....Please don't take these comments in a negative way. My -only-
intention is to push the state-of-the-art forward.
73, David KB4FXC
On Sun, 1 Nov 2015, Jim Duuuude wrote:
Fred, this list is NOT a place for personally insulting remarks such as
that. That type of behavior is not tolerated here.
Besides, as far as I am aware, Cory has, and uses, more then his 'ears'
to make such determinations. He is one of the people on this list that
has good, proper test equipment, and knows how to use it.
Jim, WB6NIL
To: n3fe@repeater.net
From: fred@fmeco.com
Date: Sun, 1 Nov 2015 14:56:58 -0500
CC: app_rpt-users@ohnosec.org
Subject: Re: [App_rpt-users] USB Adapter has no EEPROM installed
Cory, You might have your hearing checked, you most likely think
d-star sounds good also.
I never said USBradio was horrible, simply said usbradio audio is
superior. It's a subjective thing, most can hear the difference..
obviously you can't or you would not have made such a statement...
The only answer to the argument you want.. Fred
On 11/1/15 12:54 PM, Corey Dean wrote:
What degraded audio? I have ran many many test and have yet
to find this 'degraded audio'. I have heard people talk about
it but have yet seen any proof...
Sent from my iPhone
On Nov 1, 2015, at 12:32 PM, Fred Moore <fred@fmeco.com> > wrote:
Larry can't answer #1.
I simply program the radio to provide what I want on the
accessory connector, then there is no EEPROM needed.
As for answer #2
When you have COS and CTCSS (PL) available use simpleUSB it
not only requires less processing power, it also does not
suffer from degraded audio.
Just add the file and stanza you need..
regards.. Fred
On 11/1/15 6:21 AM, Larry da > Ponte wrote:
Two questions for the group:
#1 I'm seeing this in my /var/log/asterisk - I'm using a
DMK URI with EEPROM and a Motorola GM300 with one of
Marshall's Motorola Maxtrac, GM300 and M120 16 Pin Radio
to URI cables.
[Nov 1 11:30:05] NOTICE[6852]
chan_usbradio.c: USB Adapter has no EEPROM installed
or Checksum BAD on channel usb42372
I understand that the benefit of the DMK URI with
EEPROM is that the interface configuration can be
stored in the URI as apposed to (where else?) - is
this URI EEPROM feature taken advantage of with
app_rpt and associated drivers?
#2 How do I choose which channel driver to use -
simpleusb or USBRadio? From what I've been able to
learn through varius wikis and posts on the subject, I
would want to use simpleusb because all of the
hardware connections for COS and CTCSS are provided so
there is no reason to use the DSP features of USBRadio
thus simplifying what the driver has to do and perhaps
lowering the CPU utilization. I've also read some
posts that describe audio degredation in the USBRadio
driver but I can't tell you the cause. I expect the
right answer here is for me to try out both and
experiment - which I will do but would appreciate any
wisdome from the group on their experience with these
drivers when using the DMK URI and hardware
connections for COS/CTCSS. My current configuration
below is getting favorable audio reports.
I have no simpleusb.conf in my /etc/asterisk
I have usbradio.conf and
usbradio_tune_usb42372.conf
I have the following in my
rpt.conf: rxchannel=Radio/usb42372
I have the following in my usbradio.conf:
[usb42372]
hdwtype=0
rxboost=1
txboost=1
rxctcssrelax=1
txctcssdefault=71.9
rxctcssfreqs=71.9
txctcssfreqs=71.9
;rxctcssoverride=0
carrierfrom=dsp
ctcssfrom=dsp
rxdemod=flat
txprelim=yes
txlimonly=no
txtoctype=notone
txmixa=composite
txmixb=no
invertptt=0
duplex=0
rxondelay=0
rxnoisefiltype=0
eeprom=1
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