<div dir="ltr"><div class="gmail_default" style="font-size:large">I believe stuttering audio only happens on Pi nodes running USBradio. My understanding is the Rasperry Pi does not have enough horsepower for USBradio. SimpleUSB should not a problem but if anyone knows different please speak up.</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Feb 4, 2018 at 11:53 AM, Dave Maciorowski <span dir="ltr"><<a href="mailto:wa1jhk@macski.us" target="_blank">wa1jhk@macski.us</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<p><font size="-1"><font face="Helvetica, Arial, sans-serif">Hi All,</font></font></p>
<p><font size="-1"><font face="Helvetica, Arial, sans-serif">I'd
like to know more about your setups, Jay's that are working
and Jon and Skyler's that have issues. Do you use simpleusb
or usbradio? What USB-to-audio interface are you using
including the line returned by the lsusb command. Here's
mine:</font></font></p>
<p><font size="-1"><font face="Helvetica, Arial, sans-serif">Bus 001
Device 004: ID 0d8c:000e C-Media Electronics, Inc. Audio
Adapter (Planet UP-100, Genius G-Talk)</font></font></p>
<p><font size="-1"><font face="Helvetica, Arial, sans-serif">I ask
because I'm chasing an interface issue that might be related.</font></font></p>
<p><font size="-1"><font face="Helvetica, Arial, sans-serif">Thanks.</font></font></p>
<p><font size="-1"><font face="Helvetica, Arial, sans-serif"> Dave<br>
WA1JHK<br>
</font></font></p><div><div class="h5">
<br>
<div class="m_2722612015694880173moz-cite-prefix">On 2/4/2018 9:47 AM, JJC wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">I wish that I had a magic formula for you. All
that I can say is that we run minimal setups (least possible
number of running processes and installed packages) on the Pis
and we are sure to use the correct audio COR interfaces etc...
We also are meticulous in setting up levels using service
monitors of all of the radios themselves. I help to maintain a
large system (That Skyler has used frequently in the past) which
is primarily run on PIs and we have not had any of the issues
that you guys are experiencing. Wish I could be of more help,
but I truly do not believe that it's an issue caused by the Pi.
<div><br>
</div>
<div>JJC</div>
<div>N0PKT</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Sun, Feb 4, 2018 at 8:57 AM,
REDBUTTON_CTRL <span dir="ltr"><<a href="mailto:jrorke@cogeco.ca" target="_blank">jrorke@cogeco.ca</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I too have
had the sputtering audio issues. Mostly it starts to degrade
over a few days. I have run dial on Pi2 s and HP thin
clients. and so far all of them need periodic reboots or
asterisk restarts to clean up the audio.<br>
<br>
I am using DIAL Full DSP with tone encode and decode. Some
units have 2 or 3 or nodes. Even a single node pi does it.<br>
So if you have a magic set up that fixes this I would like
to hear about it.<br>
<br>
In one case I had to put back a full desk top pc to keep
from having to re set on a daily basis.<br>
Pcs dont seem to suffer from the motor boating issue.<br>
<br>
Jon VA3RQ
<div class="m_2722612015694880173HOEnZb">
<div class="m_2722612015694880173h5"><br>
<br>
On 2/3/2018 9:26 PM, JJC wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Skyler,<br>
<br>
I’ll have to disagree with your statements
completely. I have not only personally load-tested
but I have and know of many high traffic systems that
are running with zero “sputter” or issue.l on a Pi.
Several have been on the air and running for well over
a year.<br>
<br>
I am also running one system in conjunction with
DMRLink and transcoding audio (read a much heavier
demand on System resources) from DMR<-> Analog
with no “sputter”. Granted the transcoding is
offloaded to a separate chip but nonetheless. On all
of these systems running on a Pi 2 or 3 the system
load from asterisk, DMRLink etc all combined never
exceeds 15% and the audio is always clean ( not
withstanding network craziness ).<br>
<br>
So having said all of this I would look elsewhere for
what may be causing your audio ailments. I can’t
really point you in a specific direction other than to
review overall system load and performance inline with
general system administration best practices. And of
course standard troubleshooting methods of hardware
swapping/testing and validation.<br>
<br>
JJC<br>
N0PKT<br>
<br>
Sent from the iRoad, so please ignore any typos or
awesome autocorrects<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On Feb 3, 2018, at 18:19, Skyler F<<a href="mailto:electricity440@gmail.com" target="_blank">electricity440@gmail.com</a>>
wrote:<br>
<br>
At this point, I don't think the raspberry pi audio
is as good as it could be on the raspberry pi. Even
with a pi 3 on the best settings in usbradio, it
will sputter every once and a while I realize Doug
has implemented a precision timer, however, his
image is not open source, and I cannot modify,
therefore not an option for me.<br>
<br>
What is the best mini computer hardware available
for reasonable prices nowadays that I could use in
place of the pi? The raspberry pi arm architecture
just does not seem to cut the current versions of
AllStar and DAHDI. I realize how picky I am being,
but I am sort of going crazy by some raspberry pi
nodes i've put together with crazy sputtering
issues. And the telemetry sometimes sounds like it
is played at 1/2 speed. U<br>
<br>
Usbradio and simpleusb have their different
problems, but neither seem to work ok. I would
actually argue usbradio works better on the pi
because it does not have an unreliable duplex audio
delay.<br>
<br>
Do ATOM processers work well? Best suggestions here
for something lightweight and non power-hungry?<br>
<br>
Thank You!<br>
Skyler KDØWHB<br>
<br>
<br>
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