[LAU] Problems connecting Sound Devices usbpre2 to JACK
6807.chris at pop.powweb.com
Fri Apr 23 21:15:01 CEST 2021
On 2021-04-23 13:02, robertlazarski wrote:
> I have two shells open, one with a Jack Session and one with jltcdump.
> The jack command does change the display on the interface.
> I couldn't get qjackctl to recognize the usb interface, only the
> default intel sound devices. Audacity doesn't see the device. Any
Can you describe what you mean by qjackctl won't recognize the
interface? The interface is obviously running:
> Shell 1:
> /root> jackd -d alsa -d hw:USBPre2
> Acquire audio card Audio1
> creating alsa driver ...
> configuring for 48000Hz, period = 1024 frames (21.3 ms), buffer = 2
> Shell #2, does nothing.
You have to connect the audio data from the appropriate channel on the
interface to jltcdump. You don't get any connections by default with
You should see something like system:capture_1 and system:capture_2
ports, whichever one has the time code signal should be connected to the
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