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

[Andrew Reyes]

Daniel it turns out with a brand new UMC204 it still does it on my linux
box.  I'm at a loss.


On Thu, Apr 24, 2014 at 9:14 AM, Andrew Reyes <dsreyes1014 at gmail.com> wrote:

> Daniel I got my hands on Windows 7 PC and installed the drivers from the
> website and it does the samething.  So now I'm leaning toward a defective
> soundcard.  I'm sending it back for a new one.
>
>
> On Wed, Apr 23, 2014 at 11:18 AM, Andrew Reyes <dsreyes1014 at gmail.com>wrote:
>
>> Ok I got the two different logs and I don't what I'm looking for lol.
>> It's just raw data. My last option is to try using it on Windows or Mac
>> just to make sure it's not the interface.
>>
>>
>> On Wed, Apr 23, 2014 at 10:40 AM, Andrew Reyes <dsreyes1014 at gmail.com>wrote:
>>
>>> > 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.
>>>>
>>>
>>>
>>
>