27 May
2014
27 May
'14
8:50 a.m.
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).
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. I guess I have two options to loop my sound back to the
speakers (and please correct me if I am wrong): (1) specifying the input
and output device in the Setup window appropriately; (2) specifying a
proper connection in the Connections window.
Option 1. The Input Device
and Output Device scroll down list in the setup window are only usable
if I select Duplex in the Audio scroll down list. And, in any case, they
only list the audio cards of my PC, not the speakers. I guess, this is
not the right way then. However I have some questions: what are the
Input and Output device scroll down lists good for? And why can they
only be used with duplex?
Option 2. The POD appears only in the ALSA
tab of the Connection window. Therefore I cannot connect it to loopback,
which instead appears in the Audio tab. How can I proceed? And, in
general, what is the difference between the three tabs Audio, Midi, and
ALSA? Why don't I get the POD in the Audio tab as a USB sound
card?
Thanks a lot for helping
Best
Cristiano
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27 May
27 May
12:20 p.m.
On Tue, May 27, 2014 at 7:50 AM, Cristiano Alessandro <
cristianoale(a)tiscali.it> wrote:
Hi all,
Hey!
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).
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. I guess I have two
options to loop my sound back to the speakers (and please correct me if I
am wrong): (1) specifying the input and output device in the Setup window
appropriately; (2) specifying a proper connection in the Connections window.
Option 1. The Input Device and Output Device scroll down list in the setup
window
Yes these are the options that you'll need to use to set up the POD as
audio device. Are you sure that ALSA supports the POD device? It seems
like there might be a driver issue, as some other Line6 devices require a
custom driver to work with Linux: http://sourceforge.net/p/line6linux I
hope I'm wrong!
Option 2. The POD appears only in the ALSA tab of the
Connection window.
The ALSA tab in QJackCtl shows MIDI devices: the MIDI component of the POD
300 is probably class-compliant (meaning, no special driver required for
that part)..
HTH, -Harry
openavproductions.com
8:49 p.m.
Hi Harry,
thank you very very much for helping...
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. I guess I have two options to loop my sound back to
the speakers (and please correct me if I am wrong): (1) specifying
the input and output device in the Setup window appropriately; (2)
specifying a proper connection in the Connections window.
Option 1. The Input Device and Output Device scroll down list in
the setup window
Yes these are the options that you'll need to use to set up the POD as
audio device. Are you sure that ALSA supports the POD device? It
seems like there might be a driver issue, as some other Line6 devices
require a custom driver to work with Linux:
http://sourceforge.net/p/line6linux I hope I'm wrong!
I do not really understand the logic of option 1 though. First, why are
the input and output devices drop down lists shaded if I do not select
duplex? In other words, if I only want to loop the sound back to the
speaker, it does not seem that option 1 would work, as I cannot select
the input not input device. And in any case, if I have already selected
the interface I am going to use (my POD), what does it mean to select
input and output device?
As for the drivers. In fact I have not installed any driver myself. The
POD gets recognized out of the box in pulse (doesn't it use ALSA too?).
The first question is: if the problem was the driver, the device should
not get recognized in the interface drop down list, right? But it is.
Also, if I have a look at /proc/asound/cards, I get
$ 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 strangely it says
line6usb (which is the name of the device driver in sourceforge). Does
this mean that the driver is there and that ALSA support the device?
Option 2. The POD appears only in the ALSA tab of
the Connection
window.
The ALSA tab in QJackCtl shows MIDI devices: the MIDI component of the
POD 300 is probably class-compliant (meaning, no special driver
required for that part)..
Again, I do not understand the logic here. I am sorry, I am very new to
these things. If the ALSA tab shows the MIDI devices, what does the MIDI
tab show? Also, should my POD be listed in the Audio tab (if it was
recognized properly)?
Thanks again
Cristiano
11:37 p.m.
On 05/27/2014 08:49 PM, Cristiano Alessandro wrote:
...
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 strangely it says
line6usb (which is the name of the device driver in sourceforge). Does
this mean that the driver is there and that ALSA support the device?
I'm a little surprised that you get something at all. I believe that the
last working POD was the XT. I myself do have two X3s, one bean and one
PRO, and they don't work on my systems. Beside that they do not work via
USB in Linux, I don't consider this as a problem; I connect the X3 pro
via balanced cables direct to the mixer the sound card if I want to and
it's probably more noiseless than the "real thing".
On the other hand: Maybe I should donate the X3 bean to someone that is
willing to seriously try make the driver work again? I know that this
isn't [LAD], but are someone interested? I'm not sure that I'm willing
to pay to much of the shipping cost, but anyone?
Jostein
28 May
28 May
4:08 a.m.
i have the xt and it is a little rough with the line6 kernel module. if
i leave the module loaded for too long i get crashes. it sounds like
the hd is class complient usb device working with alsa if it already
works with pulse.
kelly
On 05/27/2014 05:37 PM, Jostein Chr. Andersen wrote:
On 05/27/2014 08:49 PM, Cristiano Alessandro wrote:
...
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 strangely it says
line6usb (which is the name of the device driver in sourceforge).
Does this mean that the driver is there and that ALSA support the
device?
I'm a little surprised that you get something at all. I believe that
the last working POD was the XT. I myself do have two X3s, one bean
and one PRO, and they don't work on my systems. Beside that they do
not work via USB in Linux, I don't consider this as a problem; I
connect the X3 pro via balanced cables direct to the mixer the sound
card if I want to and it's probably more noiseless than the "real
thing".
On the other hand: Maybe I should donate the X3 bean to someone that
is willing to seriously try make the driver work again? I know that
this isn't [LAD], but are someone interested? I'm not sure that I'm
willing to pay to much of the shipping cost, but anyone?
Jostein
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4 comments
4 participants
participants (4)
-
Cristiano Alessandro -
Harry van Haaren -
Jostein Chr. Andersen -
Kelly Hirai