[alsa-devel] Behringer Uphoria UMC204 usb audio capture only pops and clicks

[Andrew Reyes]

> I can just give you a few more ideas to debug this, but that includes
more action from your side.

> * First of all, try the same device on a different computer, and/or a
different USB port, especially if you're using an XHCI (USB3) port.

> * Try the device on Mac OS X, without installing a driver and see if you
have the same problem here.

> * Use usbmon and analyze the data stream when a pop occurs. Compare that
with settings that don't produce pops. There's good documentation on usbmon
in Documentation/usb/ in the Linux kernel.

Ok cool. I'll get right on that. I did try the first suggestion on four
different computers and different ports and it's the same issue but just to
be thorough I'll check again.


On Wed, Apr 23, 2014 at 9:59 AM, Daniel Mack <daniel at zonque.org> wrote:

>
>
> On April 23, 2014 4:40:07 PM CEST, Andrew Reyes <dsreyes1014 at gmail.com>
> wrote:
> >Is there something else I could do to get to the problem?
>
> I can just give you a few more ideas to debug this, but that includes more
> action from your side.
>
> * First of all, try the same device on a different computer, and/or a
> different USB port, especially if you're using an XHCI (USB3) port.
>
> * Try the device on Mac OS X, without installing a driver and see if you
> have the same problem here.
>
> * Use usbmon and analyze the data stream when a pop occurs. Compare that
> with settings that don't produce pops. There's good documentation on usbmon
> in Documentation/usb/ in the Linux kernel.
>
>
> Best regards,
> Daniel
>
> --
> Sent from my Android phone with K-9 Mail. Please excuse my brevity.
>