<div dir="auto">I've only ever experienced strange audio issues with usbradio, and have never had an issue running simpleusb on the Pi 3.</div><div class="gmail_extra"><br><div class="gmail_quote">On Feb 4, 2018 3:51 PM, "Tim Sawyer" <<a href="mailto:tisawyer@gmail.com">tisawyer@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><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="m_-8589984920537525793h5">
    <br>
    <div class="m_-8589984920537525793m_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_-8589984920537525793m_2722612015694880173HOEnZb">
              <div class="m_-8589984920537525793m_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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