Hi all,
I am very new to Jack and Linux audio in general, so I
apologize if my questions are silly. I own a POD HD300, and I would like
to use it as a sound card to loopback my guitar sound in the computer
speakers...recording would also be nice. The POD gets appropriately
recognized by the system and its device driver functions properly. In
fact, I can hear sound using Pulse, of course with huge latency. I would
like to use Jack for this (already properly installed and set it up for
real time scheduling).
Here is /proc/asound/cards:
$ cat
/proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at
0xfcaf4000 irq 46
1 [NVidia ]: HDA-Intel - HDA NVidia
HDA NVidia at
0xfeafc000 irq 17
2 [PODHD300 ]: line6usb - POD HD300
Line6 POD HD300
at USB 8-2:1.0
As you can see, device number 2 is my POD, and the
device line6usb is used. I have also checked lsmod, and the driver is
loaded in the kernel properly. Does this mean that the driver is there
and that ALSA support the device?
I have configured Jack from QJackCtl
such that the interface I am using is my POD (interface box in the Setup
window - interface which is different than the one used in Pulse). Now,
I cannot really go on. The POD does not appear in the system tab of
QJackCtl for some reason, only in the MIDI tab of the QjackCtl
Connection window (therefore I cannot make a connection with the output
playback, which appears in the audio tab instead). I have also noticed
that it does not even appear in gnome-alsa-mixer, while the other audio
devices do. Finally, if I do not make connections, and instead I
configure the Setup window such that "input device" is the POD, and
"output device" is the audio card connected to the speakers, the whole
system freezes as soon as I start the Jack server. Any idea?
Thanks a
lot for helping
Best
Cristiano
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