linuxaudio.org

On Tue, January 22, 2013 1:26 pm, Bob van der Poel wrote:

quoted text
> Anyone with experience using the UCA202? I tried it the other day

> using audacity and found that it played and recorded just fine if it

> was only doing one or the other. But, if I had existing tracks in

> audacity and played those (only 1 stereo) and recorded a 2nd track ...

> the recorded track sounded like it was filtered though a motorboat

> engine (sputter, sputter ...).

>

> I did the recording again directing the output to an existing device

> and all worked fine. So the setup seems to be useable. I am thinking

> that audacity (alsa?) can't read+write to the device?

>

> I'm running Ubuntu 12.04. Didn't have jack running.

I have found with USB audio, I have to find a USB plug that has it's own

IRQ. For example I have:
 16:   12488044          0   IO-APIC-fasteoi   ehci_hcd:usb1,

uhci_hcd:usb2, i915, ath9k

 17:          0          0   IO-APIC-fasteoi   uhci_hcd:usb3
That USB2 is the left side plug on my machine, the usb3 is the right... I

only use the one on the right. I also have found I have to unload the

wireless kernel module as it's once a minute scan gives xruns... once

every five seconds if wireless is disabled.
--

Len Ovens

www.OvenWerks.net
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